/usr/include/boost/graph/distributed/detail/dijkstra_shortest_paths.hpp is in libboost1.55-dev 1.55.0+dfsg-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | // Copyright (C) 2004-2006 The Trustees of Indiana University.
// Use, modification and distribution is subject to 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)
// Authors: Douglas Gregor
// Andrew Lumsdaine
#ifndef BOOST_GRAPH_PARALLEL_DIJKSTRA_DETAIL_HPP
#define BOOST_GRAPH_PARALLEL_DIJKSTRA_DETAIL_HPP
#ifndef BOOST_GRAPH_USE_MPI
#error "Parallel BGL files should not be included unless <boost/graph/use_mpi.hpp> has been included"
#endif
#include <boost/property_map/property_map.hpp>
namespace boost { namespace graph { namespace distributed { namespace detail {
/**********************************************************************
* Dijkstra queue message data *
**********************************************************************/
template<typename DistanceMap, typename PredecessorMap>
class dijkstra_msg_value
{
typedef typename property_traits<DistanceMap>::value_type distance_type;
typedef typename property_traits<PredecessorMap>::value_type
predecessor_type;
public:
typedef std::pair<distance_type, predecessor_type> type;
static type create(distance_type dist, predecessor_type pred)
{ return std::make_pair(dist, pred); }
};
template<typename DistanceMap>
class dijkstra_msg_value<DistanceMap, dummy_property_map>
{
typedef typename property_traits<DistanceMap>::key_type vertex_descriptor;
public:
typedef typename property_traits<DistanceMap>::value_type type;
static type create(type dist, vertex_descriptor) { return dist; }
};
/**********************************************************************/
} } } } // end namespace boost::graph::distributed::detail
#endif // BOOST_GRAPH_PARALLEL_DIJKSTRA_DETAIL_HPP
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