From: Vladimir Sykora (vsykora_at_[hidden])
Date: 2007-01-02 15:36:14
Also something that bugs me is that:
typedef adjacency_list<...> G;
const G& cg = g;
boost::copy_graph(boost::make_filtered_graph(cg, ...), f);
copy_graph() doesn't work if make_filtered_graph() is called with a
boost::copy_graph(boost::make_filtered_graph(g, ...), f);
gcc gives an error during casting to (const G&)
in the get() function for filtered_graph<>
(filtered_graph.hpp line 440). I'm not sure why is so.
Can you check that?
Douglas Gregor wrote:
> 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
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