From that I isolated the following code which compiles without any

Thanks Alex, I finally understood that using std::vec and std::list is different in the way that we need to specify an index for the edges/nodes while using such a routine like depth_first_visit. Thanks for your help! Simon problem:

typedef adjacency_list < vecS, vecS,

bidirectionalS, GraphvizVertexProperty,GraphvizEdgeProperty, GraphvizGraphProperty > Graph;

...

depth_first_visit(_graph2, loop_head, default_dfs_visitor(), make_iterator_property_map(reachable_from_head.begin(),get(vertex_index, _graph2), c)); So this works fine!

Then, I would like to change the type of graph, so more precisely, to use a std::list (or listS) instead of a std..vector (vecS) for the VertexListS So the first line declaration becomes:

typedef adjacency_list < vecS, listS, bidirectionalS,GraphvizVertexProperty,GraphvizEdgeProperty, GraphvizGraphProperty > Graph; //only the 2nd argument changes But then when I compile the code, I get 1 error during the compilation as described hereafter.

"If the VertexList of the graph is vecS, then the graph has a builtin vertex indices accessed via the property map for the vertex_index_t property." (http://www.boost.org/doc/libs/1_55_0/libs/graph/doc/adjacency_list.html <http://www.boost.org/doc/libs/1_55_0/libs/graph/doc/adjacency_list.html>) So when you use listS instead you have to supply your own vertex index map.