remove_edge may invalidate number of edges

[Moritz Beber <moritz.beber@…>]

I already posted about this problem on the mailing list, but was asked to file the problem here.

Using an adjacency_matrix and trying to remove an edge that doesn't exist in the graph invalidates the number of edges. The code in the header shows this:

template <typename D, typename VP, typename EP, typename GP, typename A> void remove_edge(typename adjacency_matrix<D,VP,EP,GP,A>::vertex_descriptor u, typename adjacency_matrix<D,VP,EP,GP,A>::vertex_descriptor v, adjacency_matrix<D,VP,EP,GP,A>& g) {

--(g.m_num_edges); detail::set_edge_exists(g.get_edge(u,v), false, 0);

}

The counter is decrement in either case. Cheers.

[Andrew Sutton]

Fixed (r50191).