Re: [Boost-users] Boost Graph Library: parallel edge removal problem

On Nov 20, 2004, at 11:11 PM, Tiago de Paula Peixoto wrote:

I believe I found a bug in the remove_edge function, when the graph is directed and allows parallel edges. Sometimes an edge simply isn't removed. I think the problem is that remove_edge uses edge_range internally, but this function needs an ordered EdgeList (such as multisetS), and doesn't work properly when it's something like listS.

The attached file shows the problem. It builds a simple graph with a loop, adds a parallel edge, and tries to remove it.

Thanks for the perfect test case! The problem was a relatively simple one (misuse of edge_range, unfortunately), but I've just checked the fix into CVS. Doug