the original graph looks like that 0--1--2--3 | | | | 7--6--5--4 the subgraph looks like that 0--1--2 | | 6--5 typedef boost::property<boost::vertex_color_t, boost::default_color_type, boost::property< boost::vertex_predecessor_t, vertex_descriptor > > VertexProperty; typedef boost::property<boost::edge_color_t, boost::default_color_type, boost::property<boost::edge_weight_t, int, boost::property<boost::edge_index_t, int > > > EdgeProperty; typedef boost::subgraph< boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, VertexProperty, EdgeProperty > > Graph; void main() { Graph g(7); boost::property_map<Graph, boost::edge_weight_t>::type weightmap = boost::get(boost::edge_weight, g); Edge e; bool inserted; boost::tie(e, inserted) = boost::add_edge(0, 1, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(1, 2, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(2, 3, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(3, 4, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(4, 5, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(5, 2, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(5, 6, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(6, 1, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(6, 7, g); weightmap[e] = 1; boost::tie(e, inserted) = boost::add_edge(7, 0, g); weightmap[e] = 1; Graph& tSubGraph = g.create_subgraph(); add_vertex(0,tSubGraph); add_vertex(1,tSubGraph); add_vertex(2,tSubGraph); add_vertex(5,tSubGraph); add_vertex(6,tSubGraph); std::vector < boost::graph_traits < Graph >::vertex_descriptor> p(boost::num_vertices(tSubGraph)); boost::prim_minimum_spanning_tree(tSubGraph, &p[0]); } The crash happens after having added for instance the 6th point of the Graph g to the subgraph. Before it worked. Jeremy Siek schrieb:
I haven't been following the thread, but if you post a small (less than one page) but complete example program that exhibits the crash I'd be willing to take a look.
Cheers, Jeremy
On Tuesday, August 5, 2003, at 02:21 AM, Stephan Höfer wrote:
Thank you for the hint. I've overseen that. But beside that there must be another mistake, because it crashes again after that slight change of the code.
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