[Boost-users] [Graph] Descriptor invalidation on remove_vertex() with adjacency_list VL=vecS

Hello, The documentation for the adjacency_list [0] is clear that if the vertex list container is vecS, then calling remove_vertex() will invalidate any vertex/edge descriptors into the graph. However, I was wondering if this is actually the case if the removed vertex was the one most recently added, that is, remove_vertex(vertex(num_vertices(g)-1)). In this case, I would think that no shifting of vertex data or adjustment of edge source/target indices would be necessary, and existing descriptors are guaranteed to be still valid. Is this safe to do with the current implementation? If not, why not? Thanks, - Chris Dellin [0] http://www.boost.org/doc/libs/1_59_0/libs/graph/doc/adjacency_list.html