Hi, I get one compiler error when using breadth_first search with the adjacency list shown below. template < typename Vertex> class bfs_reachable_set_visitor : public default_bfs_visitor { public: bfs_reachable_set_visitor(set<Vertex>* bucket): m_set(bucket) { } template < typename Graph > void discover_vertex(Vertex u, const Graph & g) { m_set->insert(u); } set<Vertex>* m_set; }; typedef adjacency_list RectAreaGraph; typedef graph_traits<RectAreaGraph>::vertex_descriptor VDescriptor; struct RectGraphVertexData {}; void some_func() { RectAreaGraph g; set<VDescriptor> reachableSet; bfs_reachable_set_visitor<VDescriptor> setvis(&reachableSet); breadth_first_search(g, *(vertices(g).first), visitor(setvis)); } The error: /Developer/boost_1_39_0/boost/property_map.hpp:351: error: no match for 'operator+' in '((const boost::iterator_property_map<__gnu_cxx::__normal_iteratorboost::default_color_type > >, boost::adj_list_vertex_property_map, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t>, boost::default_color_type, boost::default_color_type&>*)this)->boost::iterator_property_map<__gnu_cxx::__normal_iteratorboost::default_color_type > >, boost::adj_list_vertex_property_map, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t>, boost::default_color_type, boost::default_color_type&>::iter + boost::get [with PropertyMap = boost::adj_list_vertex_property_map, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t>, Reference = const boost::detail::error_property_not_found&, K = void*](((const boost::put_get_helper, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t>

&)((const boost::put_get_helper, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t> *)(&((const boost::iterator_property_map<__gnu_cxx::__normal_iteratorboost::default_color_type > >, boost::adj_list_vertex_property_map, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t>, boost::default_color_type, boost::default_color_type&>*)this)->boost::iterator_property_map<__gnu_cxx::__normal_iteratorboost::default_color_type > >, boost::adj_list_vertex_property_map, boost::detail::error_property_not_found, const boost::detail::error_property_not_found&, boost::vertex_index_t>, boost::default_color_type, boost::default_color_type&>::index))), ((void* const&)((void* const*)(& v))))'

For now, since it compiles with vecS, I can change to that, but I would prefer to have setS for edge and listS for vertex.