Hi David, On Monday, 27. June 2011 19:25:58 David Doria wrote:
I have a graph, 'inputGraph' with a bool in its bundled edge properties. If I copy that graph with:
Graph g = inputGraph;
there seems to be some odd behavior with the edge_descriptors. If you take a look at this example:
http://programmingexamples.net/index.php?title=CPP/Boost/BGL/CopyAGraph
I set one of the edges to visible=0 and then output all of the edge visibilities using the iterator from boost::edges(g) - this works properly, the edge that I set to visible=0 indeeds shows up as such. However, if I instead use the iterator from boost::edges(inputGraph) , all of the edges appear as visible! Shouldn't the edge_descriptors be identical since the graph g is an exact copy of inputGraph?
Can anyone explain why the last two loops in that example do not produce the same output?
I can't explain to you why you observe this unexpected behavior, but there is also the copy_graph() function in the BGL which might perhaps suit your needs? Hope that helps, Best, Cedric
Thanks,
David _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users