graph/test/lvalue_pmap.cpp

//=======================================================================
// Copyright 2002 Indiana University.
// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
//
// 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/properties.hpp>
#include <boost/graph/adjacency_list.hpp>

using namespace boost;

struct vertex_info_t
{
};
struct edge_info_t
{
};
namespace boost
{
BOOST_INSTALL_PROPERTY(vertex, info);
BOOST_INSTALL_PROPERTY(edge, info);
};

typedef property< vertex_info_t, double > vertex_properties;
typedef property< edge_info_t, double > edge_properties;

typedef adjacency_list< vecS, vecS, bidirectionalS, vertex_properties,
    edge_properties >
    graph_t;

double& foo_1(graph_t& x)
{
    property_map< graph_t, vertex_info_t >::type pmap = get(vertex_info_t(), x);
    return pmap[vertex(0, x)];
}

const double& foo_2(graph_t const& x)
{
    property_map< graph_t, vertex_info_t >::const_type pmap
        = get(vertex_info_t(), x);
    return pmap[vertex(0, x)];
}

double& bar_1(graph_t& x)
{
    property_map< graph_t, edge_info_t >::type pmap = get(edge_info_t(), x);
    return pmap[edge(vertex(0, x), vertex(1, x), x).first];
}

const double& bar_2(graph_t const& x)
{
    property_map< graph_t, edge_info_t >::const_type pmap
        = get(edge_info_t(), x);
    return pmap[edge(vertex(0, x), vertex(1, x), x).first];
}

int main() { return 0; }