Hi Stephen, Hmm, not sure if I understand you. The default_dfs_visitor doesn't do anything... are you defining your own visitor, inheriting from the default_dfs_visitor? Have you looked at the examples? libs/graph/example/dfs-example.cpp libs/graph/example/dfs-parenthesis.cpp Cheers, Jeremy On Feb 28, 2005, at 7:42 PM, Stephen Torri wrote:

I am using the default depth_first_search visitor with an graph setup as follows:

typedef property< vertex_index_t, uint32_t, property< vertex_name_t, boost::shared_ptr<Component> > > VertexProperty;

typedef adjacency_list // VertexProperties Graph_Type;

typedef graph_traits::vertex_descriptor Vertex;

typedef graph_traits::edge_descriptor Edge;

The graph contains Component class objects. I want to visit each Component and execute the function run().

The test graph I have is a simple two node graph:

node A ---> node B

When I use the depth_first_search with my visitor I see that it only visits node A. I do not know why this is the case. I have only implemented the discover_vertex function in it. I have std::cout messages for telling me various steps of run() have been done. I cannot see how to have the visitor say what its doing (e.g. "I'm in node A. Executing run(). Considering moving to node B).

What I need assistance on is how do I debug my visitor?

I am only sending the graph and the visitor to my call to depth_first_search:

// Let Graph Visitor run through the Graph // (visit Input graph) depth_first_search (test_graph_ptr->get_Graph(), visitor(vis));

Stephen _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

Jeremy Siek http://www.osl.iu.edu/~jsiek Ph.D. Student, Indiana University Bloomington C++ Booster (http://www.boost.org) _______________________________________________