Re: [Boost-users] [BGL] Simple question about accessing vertex property

On Oct 9, 2005, at 9:56 AM, Giulio Veronesi wrote:

How do I access the vertex_index property of a vertex? Is it necessary to use the get function? More precisaly, let us consider the following:

typedef adjacency_list > TGraph;

typedef graph_traits<TGraph>::vertex_descriptor TNode;

Suppose that 'vertex' is a TNode. Is it correct to do

int idx = vertex;

to get in idx the vertex_index of vertex?

It is correct for adjacency_list when vertex_listS = vecS. In the more general case, one would write: graph_traits<TGraph>::vertices_size_type idx = get(vertex_index, graph, vertex); Doug