Re: [Boost-users] [BGL] passing a graph from one function to another

How should I do that? I wish I could do something like this:

graph_t myGraph;

fun_A(graph_t &myGraph) { myGraph(array, edge_array + num_arcs, weights, num_nodes); }

fun_B(graph_t &myGraph) { // using myGraph to run some graph algorithm... }

You can't invoke a constructor on an object that is already created - well, you probably can, but I seriously doubt that you want to. Instead, just return myGraph from fun_A: graph_t fun_A() { return graph_t(...); } func_B(graph_t& g) { ... } main() { graph_t g = fun_A(); fun_B(g); } It might look like there's an unnecessary copy, but there won't be. Andrew Sutton andrew.n.sutton@gmail.com