3 Jun
2011
3 Jun
'11
2:50 p.m.
Tim, I'm trying to figure out how I can use a mutable queue to write something like Dijkstra's SP. Here's a skeleton with the relevant parts. Queue<Vertex*, Comp> q; Map<Vertex*, Queue::handle_type> h; h[start] = q.push(start); v->distance += x; q.update(h[v]); Comp is an indirect comparison of vertex distances (u->distance < v->distance). Does the mutable heap support this application (i.e., where I'm not directly updating the value type)? It's not clear from the examples supplied with the program. I suspect that it is, but it's not clear. Andrew