//=======================================================================
|
// Copyright 2013 University of Warsaw.
|
// Authors: Piotr Wygocki
|
//
|
// 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)
|
//=======================================================================
|
#ifndef BOOST_GRAPH_FIND_FLOW_COST_HPP
|
#define BOOST_GRAPH_FIND_FLOW_COST_HPP
|
|
#include <boost/graph/iteration_macros.hpp>
|
|
namespace boost
|
{
|
|
template < class Graph, class Capacity, class ResidualCapacity, class Weight >
|
typename property_traits< Weight >::value_type find_flow_cost(const Graph& g,
|
Capacity capacity, ResidualCapacity residual_capacity, Weight weight)
|
{
|
typedef typename property_traits< Weight >::value_type Cost;
|
|
Cost cost = 0;
|
BGL_FORALL_EDGES_T(e, g, Graph)
|
{
|
if (get(capacity, e) > Cost(0))
|
{
|
cost += (get(capacity, e) - get(residual_capacity, e))
|
* get(weight, e);
|
}
|
}
|
return cost;
|
}
|
|
template < class Graph, class P, class T, class R >
|
typename detail::edge_weight_value< Graph, P, T, R >::type find_flow_cost(
|
const Graph& g, const bgl_named_params< P, T, R >& params)
|
{
|
return find_flow_cost(g,
|
choose_const_pmap(get_param(params, edge_capacity), g, edge_capacity),
|
choose_const_pmap(get_param(params, edge_residual_capacity), g,
|
edge_residual_capacity),
|
choose_const_pmap(get_param(params, edge_weight), g, edge_weight));
|
}
|
|
template < class Graph >
|
typename property_traits<
|
typename property_map< Graph, edge_capacity_t >::type >::value_type
|
find_flow_cost(const Graph& g)
|
{
|
bgl_named_params< int, buffer_param_t > params(0);
|
return find_flow_cost(g, params);
|
}
|
|
} // boost
|
|
#endif /* BOOST_GRAPH_FIND_FLOW_COST_HPP */
|
