[Boost-users] [BGL] johnson_all_pairs_shortest problem compiling

Hi, Why doesn't the following code compile (VC++ 7.1, g++ 3.3.3, boost 1.31.0) ? ======================================================================== #include #include int main() { using namespace boost; typedef adjacency_list > > Graph; Graph g; int distance_matrix[100][100]; johnson_all_pairs_shortest_paths(g, distance_matrix); } ======================================================================== but it compiles, if we pass the edge weight map (composed from std::map) as a named parameter to johnson_all_pairs_shortest_paths ? Also, why do johnson_all_pairs_shortest_paths(g, distance_matrix); and johnson_all_pairs_shortest_paths(g, distance_matrix, weight_map(get(vertex_index, g))); produce completely different compile time errors? Finally, is it possible to use johnson_all_pairs_shortest_paths with adjacency_list ? According to the documentation, this should be possible, but this just does not compile. -- Val Samko http://val.digiways.com/