| I am attempting to create a DAG with boost graph where the vertices are sorted. This would allow fast lookup by key - as in the following pseudo code: adjacency_list< setS, <custom_container or multisetS> bidirectionalS, Node_t> // struct that has the vertex data Graph; size_t find(const Graph& g, const T& t, std::vector<vertex_descriptor>& result) { std::pair<vertex_iterator, vertex_iterator> p = vertices(g); //The vertices are sorted vertex_iterator it = std::lower_bound(p.first, p.second, t); vertex_iterator end = std::upper_bound(p.first, p.second, t); std::vector<vertex_descriptor> tmp(it, end); result.swap(tmp); return result.size(); } My attempts to sort the actual vertices has been futile. I have tried using a mulitset as well as my own custom sorted container. I would like to avoid calling a seperate sort operation everytime a vertex is added, as this is a mutable graph - I was thinking I could insert the vertex into the sorted storage. Is there any way to make this work? Thanks -J |