Re: [boost] [BGL] make_filtered_graph() should accept const Graph&

From: Douglas Gregor (doug.gregor_at_[hidden])
Date: 2006-12-15 08:15:54

On Tue, 2006-11-28 at 10:34 +0000, Vladimir Sykora wrote:
> Can anyone correct the make_filtered_graph() function on
> boost/graph/filtered_graph.hpp to accept a const Graph& ?

So, you can pass a temporary to make_filtered_graph? Yeah, that should
work. I'll add an overload.

The intent of the current approach is to keep the cv-qualification of
the graph that's passed in.

  adjacency_list<...> g;

  foo(make_filtered_graph(g, ...)); // filtered_graph of non-const g

  const adjacency_list<...>& gc = g;
  foo(make_filtered_graph(gc, ...)); // filtered_graph of const g

  Cheers,
  Doug