* installing to library ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages’
* installing *source* package ‘GiRaF’ ...
** package ‘GiRaF’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C++ compiler: ‘g++-14 (Debian 14.2.0-8) 14.2.0’
using C++11
make[1]: Entering directory '/home/hornik/tmp/scratch/RtmpSvYizp/R.INSTALL3622811a44c179/GiRaF/src'
g++-14 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-patched-gcc/Work/build/include" -DNDEBUG -I../inst/include/  -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O2 -Wall -pedantic -mtune=native   -c lattice.cpp -o lattice.o
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/scoped_ptr.hpp:13,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:22,
                 from ../inst/include/GiRaF.hpp:17,
                 from lattice.cpp:1:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/scoped_ptr.hpp:75:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
   75 |     explicit scoped_ptr( std::auto_ptr<T> p ) BOOST_SP_NOEXCEPT : px( p.release() )
      |                               ^~~~~~~~
In file included from /usr/include/c++/14/memory:78,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/armadillo:38,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:58,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo.h:29,
                 from ../inst/include/GiRaF.hpp:10:
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/aux_/na_assert.hpp:23,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/arg.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/placeholders.hpp:24,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/iterator/iterator_categories.hpp:16,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_traits.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:24:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of ‘assert_arg’ [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of ‘assert_not_arg’ [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:18,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/vector_property_map.hpp:14,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:598,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:27:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/detail/shared_count.hpp:361:33: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  361 |     explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
      |                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:251:65: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  251 | template< class T, class R > struct sp_enable_if_auto_ptr< std::auto_ptr< T >, R >
      |                                                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:508:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  508 |     explicit shared_ptr( std::auto_ptr<Y> & r ): px(r.get()), pn()
      |                               ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:521:22: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  521 |     shared_ptr( std::auto_ptr<Y> && r ): px(r.get()), pn()
      |                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:604:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  604 |     shared_ptr & operator=( std::auto_ptr<Y> & r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:613:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  613 |     shared_ptr & operator=( std::auto_ptr<Y> && r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp: In member function ‘boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(std::auto_ptr<_Up>&&)’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:615:38: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  615 |         this_type( static_cast< std::auto_ptr<Y> && >( r ) ).swap( *this );
      |                                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
g++-14 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-patched-gcc/Work/build/include" -DNDEBUG -I../inst/include/  -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O2 -Wall -pedantic -mtune=native   -c rcpp_module.cpp -o rcpp_module.o
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/scoped_ptr.hpp:13,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:22,
                 from ../inst/include/GiRaF.hpp:17,
                 from rcpp_module.cpp:1:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/scoped_ptr.hpp:75:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
   75 |     explicit scoped_ptr( std::auto_ptr<T> p ) BOOST_SP_NOEXCEPT : px( p.release() )
      |                               ^~~~~~~~
In file included from /usr/include/c++/14/memory:78,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/armadillo:38,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:58,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo.h:29,
                 from ../inst/include/GiRaF.hpp:10:
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/aux_/na_assert.hpp:23,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/arg.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/placeholders.hpp:24,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/iterator/iterator_categories.hpp:16,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_traits.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:24:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of ‘assert_arg’ [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of ‘assert_not_arg’ [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:18,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/vector_property_map.hpp:14,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:598,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:27:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/detail/shared_count.hpp:361:33: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  361 |     explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
      |                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:251:65: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  251 | template< class T, class R > struct sp_enable_if_auto_ptr< std::auto_ptr< T >, R >
      |                                                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:508:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  508 |     explicit shared_ptr( std::auto_ptr<Y> & r ): px(r.get()), pn()
      |                               ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:521:22: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  521 |     shared_ptr( std::auto_ptr<Y> && r ): px(r.get()), pn()
      |                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:604:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  604 |     shared_ptr & operator=( std::auto_ptr<Y> & r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:613:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  613 |     shared_ptr & operator=( std::auto_ptr<Y> && r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp: In member function ‘boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(std::auto_ptr<_Up>&&)’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:615:38: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  615 |         this_type( static_cast< std::auto_ptr<Y> && >( r ) ).swap( *this );
      |                                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
g++-14 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-patched-gcc/Work/build/include" -DNDEBUG -I../inst/include/  -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O2 -Wall -pedantic -mtune=native   -c recursion.cpp -o recursion.o
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/scoped_ptr.hpp:13,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:22,
                 from ../inst/include/GiRaF.hpp:17,
                 from recursion.cpp:1:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/scoped_ptr.hpp:75:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
   75 |     explicit scoped_ptr( std::auto_ptr<T> p ) BOOST_SP_NOEXCEPT : px( p.release() )
      |                               ^~~~~~~~
In file included from /usr/include/c++/14/memory:78,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/armadillo:38,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:58,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo.h:29,
                 from ../inst/include/GiRaF.hpp:10:
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/aux_/na_assert.hpp:23,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/arg.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/placeholders.hpp:24,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/iterator/iterator_categories.hpp:16,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_traits.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:24:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of ‘assert_arg’ [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of ‘assert_not_arg’ [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:18,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/vector_property_map.hpp:14,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:598,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:27:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/detail/shared_count.hpp:361:33: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  361 |     explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
      |                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:251:65: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  251 | template< class T, class R > struct sp_enable_if_auto_ptr< std::auto_ptr< T >, R >
      |                                                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:508:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  508 |     explicit shared_ptr( std::auto_ptr<Y> & r ): px(r.get()), pn()
      |                               ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:521:22: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  521 |     shared_ptr( std::auto_ptr<Y> && r ): px(r.get()), pn()
      |                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:604:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  604 |     shared_ptr & operator=( std::auto_ptr<Y> & r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:613:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  613 |     shared_ptr & operator=( std::auto_ptr<Y> && r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp: In member function ‘boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(std::auto_ptr<_Up>&&)’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:615:38: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  615 |         this_type( static_cast< std::auto_ptr<Y> && >( r ) ).swap( *this );
      |                                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
g++-14 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-patched-gcc/Work/build/include" -DNDEBUG -I../inst/include/  -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include' -I'/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O2 -Wall -pedantic -mtune=native   -c sampler.cpp -o sampler.o
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/scoped_ptr.hpp:13,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:22,
                 from ../inst/include/GiRaF.hpp:17,
                 from sampler.cpp:1:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/scoped_ptr.hpp:75:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
   75 |     explicit scoped_ptr( std::auto_ptr<T> p ) BOOST_SP_NOEXCEPT : px( p.release() )
      |                               ^~~~~~~~
In file included from /usr/include/c++/14/memory:78,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/armadillo:38,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:58,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/RcppArmadillo/include/RcppArmadillo.h:29,
                 from ../inst/include/GiRaF.hpp:10:
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/aux_/na_assert.hpp:23,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/arg.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/placeholders.hpp:24,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/iterator/iterator_categories.hpp:16,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_traits.hpp:25,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:24:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of ‘assert_arg’ [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of ‘assert_not_arg’ [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:18,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/vector_property_map.hpp:14,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:598,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/adjacency_list.hpp:27:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/detail/shared_count.hpp:361:33: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  361 |     explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
      |                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:251:65: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  251 | template< class T, class R > struct sp_enable_if_auto_ptr< std::auto_ptr< T >, R >
      |                                                                 ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:508:31: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  508 |     explicit shared_ptr( std::auto_ptr<Y> & r ): px(r.get()), pn()
      |                               ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:521:22: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  521 |     shared_ptr( std::auto_ptr<Y> && r ): px(r.get()), pn()
      |                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:604:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  604 |     shared_ptr & operator=( std::auto_ptr<Y> & r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:613:34: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  613 |     shared_ptr & operator=( std::auto_ptr<Y> && r )
      |                                  ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp: In member function ‘boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(std::auto_ptr<_Up>&&)’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/smart_ptr/shared_ptr.hpp:615:38: warning: ‘template<class> class std::auto_ptr’ is deprecated: use 'std::unique_ptr' instead [-Wdeprecated-declarations]
  615 |         this_type( static_cast< std::auto_ptr<Y> && >( r ) ).swap( *this );
      |                                      ^~~~~~~~
/usr/include/c++/14/bits/unique_ptr.h:59:28: note: declared here
   59 |   template<typename> class auto_ptr;
      |                            ^~~~~~~~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/assert.hpp:35,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:19:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:66:5:   required from ‘struct boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:31,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:20:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:87:5:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
In file included from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/aux_/integral_wrapper.hpp:22,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/int.hpp:20,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/lambda_fwd.hpp:23,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/aux_/na_spec.hpp:18,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/mpl/if.hpp:19,
                 from /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_traits.hpp:17:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:15: note: in a call to non-static member function ‘boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >::~IncidenceGraphConcept()’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1: note: in expansion of macro ‘BOOST_concept’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      | ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::constraint<Model>::failed() [with Model = boost::BFSVisitorConcept<Visitor_cc, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:65:5:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:65:52: warning: ‘this’ pointer is null [-Wnonnull]
   65 |     static void failed() { ((Model*)0)->constraints(); }
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~
In file included from ../inst/include/GiRaF.hpp:19:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:37:10: note: in a call to non-static member function ‘void boost::BFSVisitorConcept<Visitor, Graph>::constraints() [with Visitor = Visitor_cc; Graph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   37 |     void constraints()
      |          ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::constraint<Model>::failed() [with Model = boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:66:5:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:65:52: warning: ‘this’ pointer is null [-Wnonnull]
   65 |     static void failed() { ((Model*)0)->constraints(); }
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:205:10: note: in a call to non-static member function ‘void boost::ReadWritePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
  205 |     void constraints() {
      |          ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::constraint<Model>::failed() [with Model = boost::BFSVisitorConcept<Visitor_color, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:65:5:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_color; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:345:27:   required from here
  345 |       breadth_first_search(g_SW, *it_s, visitor(vis_color));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:65:52: warning: ‘this’ pointer is null [-Wnonnull]
   65 |     static void failed() { ((Model*)0)->constraints(); }
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:37:10: note: in a call to non-static member function ‘void boost::BFSVisitorConcept<Visitor, Graph>::constraints() [with Visitor = Visitor_color; Graph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   37 |     void constraints()
      |          ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::constraint<Model>::failed() [with Model = boost::BFSVisitorConcept<Visitor_cc_cond, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:65:5:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc_cond; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:400:27:   required from here
  400 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:65:52: warning: ‘this’ pointer is null [-Wnonnull]
   65 |     static void failed() { ((Model*)0)->constraints(); }
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:37:10: note: in a call to non-static member function ‘void boost::BFSVisitorConcept<Visitor, Graph>::constraints() [with Visitor = Visitor_cc_cond; Graph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   37 |     void constraints()
      |          ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:66:5:   required from ‘struct boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::concepts::Graph<G>::~Graph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:66:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
   66 |     BOOST_CONCEPT_USAGE(Graph)
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:87:5:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:87:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
   87 |     BOOST_CONCEPT_USAGE(IncidenceGraph)
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<Visitor_cc> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5:   required from ‘struct boost::CopyConstructible<Visitor_cc>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3:   required from ‘struct boost::CopyConstructibleConcept<Visitor_cc>’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::CopyConstructibleConcept<Visitor_cc>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_cc> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_cc> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<Visitor_cc>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::CopyConstructibleConcept<Visitor_cc>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:41:9:   required from ‘void boost::BFSVisitorConcept<Visitor, Graph>::constraints() [with Visitor = Visitor_cc; Graph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::BFSVisitorConcept<Visitor_cc, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::BFSVisitorConcept<Visitor_cc, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::BFSVisitorConcept<Visitor_cc, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:17: note: in a call to non-static member function ‘boost::CopyConstructibleConcept<Visitor_cc>::~CopyConstructibleConcept()’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3: note: in expansion of macro ‘BOOST_concept’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |   ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::constraint<Model>::failed() [with Model = boost::ReadablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:206:7:   required from ‘void boost::ReadWritePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:65:52: warning: ‘this’ pointer is null [-Wnonnull]
   65 |     static void failed() { ((Model*)0)->constraints(); }
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:147:10: note: in a call to non-static member function ‘void boost::ReadablePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
  147 |     void constraints() {
      |          ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::constraint<Model>::failed() [with Model = boost::WritablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:207:7:   required from ‘void boost::ReadWritePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:65:52: warning: ‘this’ pointer is null [-Wnonnull]
   65 |     static void failed() { ((Model*)0)->constraints(); }
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:179:10: note: in a call to non-static member function ‘void boost::WritablePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
  179 |     void constraints() {
      |          ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::read_write_property_map_tag, boost::read_write_property_map_tag> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::read_write_property_map_tag, boost::read_write_property_map_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3:   required from ‘struct boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag>’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::read_write_property_map_tag, boost::read_write_property_map_tag>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:208:7:   required from ‘void boost::ReadWritePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ReadWritePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:17: note: in a call to non-static member function ‘boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag>::~ConvertibleConcept()’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3: note: in expansion of macro ‘BOOST_concept’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |   ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<Visitor_color> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5:   required from ‘struct boost::CopyConstructible<Visitor_color>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3:   required from ‘struct boost::CopyConstructibleConcept<Visitor_color>’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::CopyConstructibleConcept<Visitor_color>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_color> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_color> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_color; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:345:27:   required from here
  345 |       breadth_first_search(g_SW, *it_s, visitor(vis_color));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<Visitor_color>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::CopyConstructibleConcept<Visitor_color>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:41:9:   required from ‘void boost::BFSVisitorConcept<Visitor, Graph>::constraints() [with Visitor = Visitor_color; Graph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::BFSVisitorConcept<Visitor_color, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::BFSVisitorConcept<Visitor_color, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::BFSVisitorConcept<Visitor_color, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_color; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:345:27:   required from here
  345 |       breadth_first_search(g_SW, *it_s, visitor(vis_color));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:17: note: in a call to non-static member function ‘boost::CopyConstructibleConcept<Visitor_color>::~CopyConstructibleConcept()’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3: note: in expansion of macro ‘BOOST_concept’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |   ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<Visitor_cc_cond> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5:   required from ‘struct boost::CopyConstructible<Visitor_cc_cond>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3:   required from ‘struct boost::CopyConstructibleConcept<Visitor_cc_cond>’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::CopyConstructibleConcept<Visitor_cc_cond>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_cc_cond> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_cc_cond> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc_cond; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:400:27:   required from here
  400 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<Visitor_cc_cond>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::CopyConstructibleConcept<Visitor_cc_cond>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:41:9:   required from ‘void boost::BFSVisitorConcept<Visitor, Graph>::constraints() [with Visitor = Visitor_cc_cond; Graph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::BFSVisitorConcept<Visitor_cc_cond, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::BFSVisitorConcept<Visitor_cc_cond, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::BFSVisitorConcept<Visitor_cc_cond, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc_cond; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:400:27:   required from here
  400 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:17: note: in a call to non-static member function ‘boost::CopyConstructibleConcept<Visitor_cc_cond>::~CopyConstructibleConcept()’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3: note: in expansion of macro ‘BOOST_concept’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |   ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:52:50:   required from ‘struct boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:89:9:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:89:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::concepts::MultiPassInputIterator<T>::~MultiPassInputIterator() [with T = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:52:50: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
   52 |     BOOST_concept(MultiPassInputIterator, (T)) { BOOST_CONCEPT_USAGE(
      |                                                  ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5:   required from ‘struct boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:90:9:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:90:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::DefaultConstructible<TT>::~DefaultConstructible() [with TT = boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  137 |     BOOST_CONCEPT_USAGE(DefaultConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5:   required from ‘struct boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:91:9:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:91:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5:   required from ‘struct boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:92:9:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:92:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Assignable<TT>::~Assignable() [with TT = boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  145 |     BOOST_CONCEPT_USAGE(Assignable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:93:9:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:93:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::undir_adj_list_traversal_tag; Y = boost::incidence_graph_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<Visitor_cc>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<Visitor_cc> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5:   required from ‘struct boost::CopyConstructible<Visitor_cc>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3:   required from ‘struct boost::CopyConstructibleConcept<Visitor_cc>’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::CopyConstructibleConcept<Visitor_cc>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_cc> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::CopyConstructible<TT>::~CopyConstructible() [with TT = Visitor_cc]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::read_write_property_map_tag, boost::readable_property_map_tag> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::read_write_property_map_tag, boost::readable_property_map_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3:   required from ‘struct boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag>’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 12 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::read_write_property_map_tag, boost::readable_property_map_tag>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:148:7:   required from ‘void boost::ReadablePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ReadablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ReadablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ReadablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::ReadablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:206:7:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:17: note: in a call to non-static member function ‘boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag>::~ConvertibleConcept()’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3: note: in expansion of macro ‘BOOST_concept’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |   ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::read_write_property_map_tag, boost::writable_property_map_tag> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::read_write_property_map_tag, boost::writable_property_map_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3:   required from ‘struct boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag>’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 12 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::read_write_property_map_tag, boost::writable_property_map_tag>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:180:7:   required from ‘void boost::WritablePropertyMapConcept<PMap, Key>::constraints() [with PMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; Key = long unsigned int]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::WritablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::WritablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::WritablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::WritablePropertyMapConcept<boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >, long unsigned int>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/property_map/property_map.hpp:207:7:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:17: note: in a call to non-static member function ‘boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag>::~ConvertibleConcept()’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/preprocessor/cat.hpp:29:34: note: in definition of macro ‘BOOST_PP_CAT_I’
   29 | #    define BOOST_PP_CAT_I(a, b) a ## b
      |                                  ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/concept_def.hpp:23:12: note: in expansion of macro ‘BOOST_PP_CAT’
   23 |     struct BOOST_PP_CAT(name,Concept)                                           \
      |            ^~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3: note: in expansion of macro ‘BOOST_concept’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |   ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::read_write_property_map_tag, boost::read_write_property_map_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::read_write_property_map_tag, boost::read_write_property_map_tag> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::read_write_property_map_tag, boost::read_write_property_map_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3:   required from ‘struct boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag>’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::read_write_property_map_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::read_write_property_map_tag; Y = boost::read_write_property_map_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<Visitor_color>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<Visitor_color> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5:   required from ‘struct boost::CopyConstructible<Visitor_color>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3:   required from ‘struct boost::CopyConstructibleConcept<Visitor_color>’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::CopyConstructibleConcept<Visitor_color>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_color> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_color; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_color; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_color; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:345:27:   required from here
  345 |       breadth_first_search(g_SW, *it_s, visitor(vis_color));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::CopyConstructible<TT>::~CopyConstructible() [with TT = Visitor_color]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<Visitor_cc_cond>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<Visitor_cc_cond> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5:   required from ‘struct boost::CopyConstructible<Visitor_cc_cond>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:165:3:   required from ‘struct boost::CopyConstructibleConcept<Visitor_cc_cond>’
  165 |   BOOST_concept(CopyConstructible,(TT))
      |                 ^~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::CopyConstructibleConcept<Visitor_cc_cond>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::CopyConstructibleConcept<Visitor_cc_cond> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc_cond; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc_cond; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc_cond; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:400:27:   required from here
  400 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::CopyConstructible<TT>::~CopyConstructible() [with TT = Visitor_cc_cond]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:167:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::DefaultConstructible<long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5:   required from ‘struct boost::DefaultConstructible<long unsigned int>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::DefaultConstructible<long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::DefaultConstructible<long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::DefaultConstructible<long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::DefaultConstructible<long unsigned int>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:68:9:   [ skipping 11 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::DefaultConstructible<long unsigned int>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::DefaultConstructible<long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:68:9:   required from ‘boost::concepts::Graph<G>::~Graph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48:   required from ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:66:5:   required from ‘struct boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::DefaultConstructible<TT>::~DefaultConstructible() [with TT = long unsigned int]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  137 |     BOOST_CONCEPT_USAGE(DefaultConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5:   required from ‘struct boost::EqualityComparable<long unsigned int>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::EqualityComparable<long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::EqualityComparable<long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::EqualityComparable<long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::EqualityComparable<long unsigned int>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:69:9:   [ skipping 11 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<long unsigned int>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::EqualityComparable<long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:69:9:   required from ‘boost::concepts::Graph<G>::~Graph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48:   required from ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:66:5:   required from ‘struct boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::EqualityComparable<TT>::~EqualityComparable() [with TT = long unsigned int]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Assignable<long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5:   required from ‘struct boost::Assignable<long unsigned int>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Assignable<long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Assignable<long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Assignable<long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::Assignable<long unsigned int>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:70:9:   [ skipping 11 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Assignable<long unsigned int>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Assignable<long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:70:9:   required from ‘boost::concepts::Graph<G>::~Graph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48:   required from ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:66:5:   required from ‘struct boost::concepts::Graph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘struct boost::concepts::IncidenceGraph<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Assignable<TT>::~Assignable() [with TT = long unsigned int]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  145 |     BOOST_CONCEPT_USAGE(Assignable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:52:50:   required from ‘struct boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::concepts::MultiPassInputIterator<T>::~MultiPassInputIterator() [with T = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:52:50: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
   52 |     BOOST_concept(MultiPassInputIterator, (T)) { BOOST_CONCEPT_USAGE(
      |                                                  ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5:   required from ‘struct boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::DefaultConstructible<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::DefaultConstructible<TT>::~DefaultConstructible() [with TT = boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  137 |     BOOST_CONCEPT_USAGE(DefaultConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5:   required from ‘struct boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::EqualityComparable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5:   required from ‘struct boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Assignable<boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int> > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Assignable<TT>::~Assignable() [with TT = boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  145 |     BOOST_CONCEPT_USAGE(Assignable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Convertible<boost::undir_adj_list_traversal_tag, boost::incidence_graph_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::undir_adj_list_traversal_tag; Y = boost::incidence_graph_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::read_write_property_map_tag, boost::readable_property_map_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::read_write_property_map_tag, boost::readable_property_map_tag> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::read_write_property_map_tag, boost::readable_property_map_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3:   required from ‘struct boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag>’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::readable_property_map_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 13 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::read_write_property_map_tag; Y = boost::readable_property_map_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::read_write_property_map_tag, boost::writable_property_map_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::read_write_property_map_tag, boost::writable_property_map_tag> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::read_write_property_map_tag, boost::writable_property_map_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:206:3:   required from ‘struct boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag>’
  206 |   BOOST_concept(Convertible,(X)(Y))
      |                 ^~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::ConvertibleConcept<boost::read_write_property_map_tag, boost::writable_property_map_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 13 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::read_write_property_map_tag; Y = boost::writable_property_map_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::DefaultConstructible<long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::DefaultConstructible<long unsigned int> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5:   required from ‘struct boost::DefaultConstructible<long unsigned int>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::DefaultConstructible<long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::DefaultConstructible<long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::DefaultConstructible<long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 12 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::DefaultConstructible<TT>::~DefaultConstructible() [with TT = long unsigned int]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:137:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  137 |     BOOST_CONCEPT_USAGE(DefaultConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<long unsigned int> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5:   required from ‘struct boost::EqualityComparable<long unsigned int>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::EqualityComparable<long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::EqualityComparable<long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::EqualityComparable<long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 12 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::EqualityComparable<TT>::~EqualityComparable() [with TT = long unsigned int]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Assignable<long unsigned int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Assignable<long unsigned int> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5:   required from ‘struct boost::Assignable<long unsigned int>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Assignable<long unsigned int>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Assignable<long unsigned int> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Assignable<long unsigned int> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 12 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Assignable<TT>::~Assignable() [with TT = long unsigned int]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  145 |     BOOST_CONCEPT_USAGE(Assignable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Assignable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5:   required from ‘struct boost::Assignable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:502:3:   required from ‘struct boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
  502 |   BOOST_concept(InputIterator,(TT))
      |                 ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Assignable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5:   required from ‘struct boost::EqualityComparable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:502:3:   required from ‘struct boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
  502 |   BOOST_concept(InputIterator,(TT))
      |                 ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:512:7:   required from ‘struct boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:53:35:   [ skipping 5 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:53:35:   required from ‘boost::concepts::MultiPassInputIterator<T>::~MultiPassInputIterator() [with T = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:89:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::IncidenceGraphConcept<boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >]’
   75 | BOOST_concept(IncidenceGraph, (G)) : Graph< G >
      |               ^~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/depth_first_search.hpp:129:9:   required from ‘void boost::breadth_first_visit(const IncidenceGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with IncidenceGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; SourceIterator = long unsigned int*]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::InputIterator<TT>::~InputIterator() [with TT = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:512:7: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  512 |       BOOST_CONCEPT_USAGE(InputIterator)
      |       ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Assignable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Assignable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5:   required from ‘struct boost::Assignable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:502:3:   required from ‘struct boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
  502 |   BOOST_concept(InputIterator,(TT))
      |                 ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Assignable<TT>::~Assignable() [with TT = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:145:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  145 |     BOOST_CONCEPT_USAGE(Assignable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5:   required from ‘struct boost::EqualityComparable<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:502:3:   required from ‘struct boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
  502 |   BOOST_concept(InputIterator,(TT))
      |                 ^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:233:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:512:7:   required from ‘struct boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > > >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::InputIterator<TT>::~InputIterator() [with TT = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:512:7: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  512 |       BOOST_CONCEPT_USAGE(InputIterator)
      |       ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::SignedInteger<long int>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:514:9:   required from ‘boost::InputIterator<TT>::~InputIterator() [with TT = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:53:35:   required from ‘boost::concepts::MultiPassInputIterator<T>::~MultiPassInputIterator() [with T = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:89:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:107:22: note: in a call to non-static member function ‘boost::SignedInteger<long int>::~SignedInteger()’
  107 |   template <> struct SignedInteger<long> {};
      |                      ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag> >]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   required from ‘struct boost::concepts::requirement_<void (*)(boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>)>’
   72 | struct requirement_<void(*)(Model)>
      |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:515:9:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:5: note: in a call to non-static member function ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>]’
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp: In instantiation of ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:515:9:   required from ‘boost::InputIterator<TT>::~InputIterator() [with TT = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::InputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:53:35:   required from ‘boost::concepts::MultiPassInputIterator<T>::~MultiPassInputIterator() [with T = boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> >]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::MultiPassInputIterator<boost::iterators::filter_iterator<boost::detail::out_edge_predicate<SW_filter, boost::keep_all, boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter> >, boost::detail::out_edge_iter<std::_List_iterator<boost::detail::stored_edge_iter<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > > >, long unsigned int, boost::detail::edge_desc_impl<boost::undirected_tag, long unsigned int>, long int> > >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:89:9:   required from ‘boost::concepts::IncidenceGraph<G>::~IncidenceGraph() [with G = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>]’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/graph_concepts.hpp:75:1:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47: warning: ‘this’ pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>; Y = std::input_iterator_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp: In instantiation of ‘boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>]’:
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:50:47:   required from ‘static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag> >]’
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5:   required from ‘struct boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>’
   92 |     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
      |     ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of ‘template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag>]’
   32 |   inline yes has_constraints_(Model*, wrap_constraints<Model,&Model::constraints>* = 0);
      |                                                              ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:42:5:   required from ‘const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag> >::value’
   44 |       , value = sizeof( detail::has_constraints_((Model*)0) ) == sizeof(detail::yes) );
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/has_constraints.hpp:45:51:   required from ‘struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>, std::input_iterator_tag> >’
   45 |     typedef boost::integral_constant<bool, value> type;
      |                                                   ^~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/detail/general.hpp:72:8:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:136:24:   required from ‘void boost::breadth_first_search(const VertexListGraph&, SourceIterator, SourceIterator, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; SourceIterator = long unsigned int*; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >]’
  136 |     breadth_first_visit(g, sources_begin, sources_end, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:147:25:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, Buffer&, BFSVisitor, ColorMap) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; Buffer = queue<long unsigned int, std::deque<long unsigned int, std::allocator<long unsigned int> > >; BFSVisitor = Visitor_cc; ColorMap = two_bit_color_map<vec_adj_list_vertex_id_map<property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  147 |     breadth_first_search(g, sources, sources + 1, Q, vis, color);
      |     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:262:29:   required from ‘void boost::detail::bfs_helper(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, ColorMap, BFSVisitor, const boost::bgl_named_params<P, T, R>&, mpl_::false_) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; ColorMap = boost::two_bit_color_map<boost::vec_adj_list_vertex_id_map<boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, long unsigned int> >; BFSVisitor = Visitor_cc; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int; mpl_::false_ = mpl_::bool_<false>]’
  262 |         breadth_first_search(g, s,
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~~
  263 |             choose_param(get_param(params, buffer_param_t()), boost::ref(Q))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 |                 .get(),
      |                 ~~~~~~~      
  265 |             vis, color);
      |             ~~~~~~~~~~~      
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:309:23:   required from ‘static void boost::detail::bfs_dispatch<boost::param_not_found>::apply(VertexListGraph&, typename boost::graph_traits<Graph>::vertex_descriptor, const boost::bgl_named_params<T, Tag, Base>&, boost::param_not_found) [with VertexListGraph = boost::filtered_graph<boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_color_t, unsigned int, boost::property<boost::vertex_potential_t, arma::Col<double>, boost::property<boost::vertex_degree_t, unsigned int, boost::property<boost::vertex_update_t, double, boost::property<boost::vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, boost::property<boost::edge_weight_t, double, boost::property<boost::edge_weight2_t, unsigned int, boost::property<boost::edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = boost::graph_visitor_t; R = boost::no_property; typename boost::graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  309 |             bfs_helper(g, s,
      |             ~~~~~~~~~~^~~~~~
  310 |                 make_two_bit_color_map(num_vertices(g),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 |                     choose_const_pmap(
      |                     ~~~~~~~~~~~~~~~~~~
  312 |                         get_param(params, vertex_index), g, vertex_index)),
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  313 |                 choose_param(get_param(params, graph_visitor),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  314 |                     make_bfs_visitor(null_vis)),
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |                 params,
      |                 ~~~~~~~
  316 |                 boost::mpl::bool_<
      |                 ~~~~~~~~~~~~~~~~~~
  317 |                     boost::is_base_and_derived< distributed_graph_tag,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |                         typename graph_traits<
      |                         ~~~~~~~~~~~~~~~~~~~~~~
  319 |                             VertexListGraph >::traversal_category >::value >());
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/graph/breadth_first_search.hpp:339:37:   required from ‘void boost::breadth_first_search(const VertexListGraph&, typename graph_traits<Graph>::vertex_descriptor, const bgl_named_params<T, Tag, Base>&) [with VertexListGraph = filtered_graph<adjacency_list<listS, vecS, undirectedS, property<vertex_color_t, unsigned int, property<vertex_potential_t, arma::Col<double>, property<vertex_degree_t, unsigned int, property<vertex_update_t, double, property<vertex_underlying_t, std::vector<int, std::allocator<int> > > > > > >, property<edge_weight_t, double, property<edge_weight2_t, unsigned int, property<edge_update_t, double> > > >, SW_filter>; P = Visitor_cc; T = graph_visitor_t; R = no_property; typename graph_traits<Graph>::vertex_descriptor = long unsigned int]’
  339 |     detail::bfs_dispatch< C >::apply(
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  340 |         ng, s, params, get_param(params, vertex_color));
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sampler.cpp:339:27:   required from here
  339 |       breadth_first_search(g_SW, *it_s, visitor(vis_cc));
      |       ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:20:48: warning: ‘this’ pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept/usage.hpp:37:7: note: in a call to non-static member function ‘boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::detail::iterator_category_with_traversal<std::input_iterator_tag, boost::iterators::bidirectional_traversal_tag>; Y = std::input_iterator_tag]’
   37 |       ~model()
      |       ^
/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/BH/include/boost/concept_check.hpp:208:5: note: in expansion of macro ‘BOOST_CONCEPT_USAGE’
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
g++-14 -std=gnu++11 -shared -L/home/hornik/tmp/R.check/r-patched-gcc/Work/build/lib -Wl,-O1 -o GiRaF.so lattice.o rcpp_module.o recursion.o sampler.o -L/home/hornik/tmp/R.check/r-patched-gcc/Work/build/lib -lR
make[1]: Leaving directory '/home/hornik/tmp/scratch/RtmpSvYizp/R.INSTALL3622811a44c179/GiRaF/src'
make[1]: Entering directory '/home/hornik/tmp/scratch/RtmpSvYizp/R.INSTALL3622811a44c179/GiRaF/src'
make[1]: Leaving directory '/home/hornik/tmp/scratch/RtmpSvYizp/R.INSTALL3622811a44c179/GiRaF/src'
installing to /home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/00LOCK-GiRaF/00new/GiRaF/libs
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
  converting help for package ‘GiRaF’
    finding HTML links ... done
    GiRaF-package                           html  
    NC.mrf                                  html  
    exact.mrf                               html  
    sampler.mrf                             html  
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (GiRaF)