boost_1_45_0/libs/graph/test/copy.cpp

// Copyright (C) Vladimir Prus 2003.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/copy.hpp>

using namespace boost;

class copier {
public:
    template<class V1, class V2>
    void operator()(const V1&, const V2&) const {}
};

int main()
{
    adjacency_list<vecS, vecS, directedS, property<vertex_root_t, int> > g1, g2;
    adjacency_list<vecS, setS, directedS, property<vertex_index_t, int> > g3;

    copy_graph(g1, g2);
    copier c;
    copy_graph(g3, g1, vertex_copy(c));
}