Added boost header

test/external/boost/graph/closeness_centrality.hpp

@@ -0,0 +1,157 @@
+// (C) Copyright 2007-2009 Andrew Sutton
+//
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0 (See accompanying file
+// LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_GRAPH_CLOSENESS_CENTRALITY_HPP
+#define BOOST_GRAPH_CLOSENESS_CENTRALITY_HPP
+
+#include <boost/graph/detail/geodesic.hpp>
+#include <boost/graph/exterior_property.hpp>
+
+namespace boost
+{
+template <typename Graph,
+          typename DistanceType,
+          typename ResultType,
+          typename Reciprocal = detail::reciprocal<ResultType> >
+struct closeness_measure
+    : public geodesic_measure<Graph, DistanceType, ResultType>
+{
+    typedef geodesic_measure< Graph, DistanceType, ResultType> base_type;
+    typedef typename base_type::distance_type distance_type;
+    typedef typename base_type::result_type result_type;
+
+    result_type operator ()(distance_type d, const Graph&)
+    {
+        function_requires< NumericValueConcept<DistanceType> >();
+        function_requires< NumericValueConcept<ResultType> >();
+        function_requires< AdaptableUnaryFunctionConcept<Reciprocal,ResultType,ResultType> >();
+        return (d == base_type::infinite_distance())
+            ? base_type::zero_result()
+            : rec(result_type(d));
+    }
+    Reciprocal rec;
+};
+
+template <typename Graph, typename DistanceMap>
+inline closeness_measure<
+        Graph, typename property_traits<DistanceMap>::value_type, double,
+        detail::reciprocal<double> >
+measure_closeness(const Graph&, DistanceMap)
+{
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+    return closeness_measure<Graph, Distance, double, detail::reciprocal<double> >();
+}
+
+template <typename T, typename Graph, typename DistanceMap>
+inline closeness_measure<
+        Graph, typename property_traits<DistanceMap>::value_type, T,
+        detail::reciprocal<T> >
+measure_closeness(const Graph&, DistanceMap)
+{
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+    return closeness_measure<Graph, Distance, T, detail::reciprocal<T> >();
+}
+
+template <typename T, typename Graph, typename DistanceMap, typename Reciprocal>
+inline closeness_measure<
+        Graph, typename property_traits<DistanceMap>::value_type, T,
+        Reciprocal>
+measure_closeness(const Graph&, DistanceMap)
+{
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+    return closeness_measure<Graph, Distance, T, Reciprocal>();
+}
+
+template <typename Graph,
+          typename DistanceMap,
+          typename Measure,
+          typename Combinator>
+inline typename Measure::result_type
+closeness_centrality(const Graph& g,
+                     DistanceMap dist,
+                     Measure measure,
+                     Combinator combine)
+{
+    function_requires< VertexListGraphConcept<Graph> >();
+    typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
+    function_requires< ReadablePropertyMapConcept<DistanceMap,Vertex> >();
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+    function_requires< NumericValueConcept<Distance> >();
+    function_requires< DistanceMeasureConcept<Measure,Graph> >();
+
+    Distance n = detail::combine_distances(g, dist, combine, Distance(0));
+    return measure(n, g);
+}
+
+template <typename Graph, typename DistanceMap, typename Measure>
+inline typename Measure::result_type
+closeness_centrality(const Graph& g, DistanceMap dist, Measure measure)
+{
+    function_requires< GraphConcept<Graph> >();
+    typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
+    function_requires< ReadablePropertyMapConcept<DistanceMap,Vertex> >();
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+
+    return closeness_centrality(g, dist, measure, std::plus<Distance>());
+}
+
+template <typename Graph, typename DistanceMap>
+inline double closeness_centrality(const Graph& g, DistanceMap dist)
+{ return closeness_centrality(g, dist, measure_closeness(g, dist)); }
+
+template <typename T, typename Graph, typename DistanceMap>
+inline T closeness_centrality(const Graph& g, DistanceMap dist)
+{ return closeness_centrality(g, dist, measure_closeness<T>(g, dist)); }
+
+template <typename Graph,
+          typename DistanceMatrixMap,
+          typename CentralityMap,
+          typename Measure>
+inline void
+all_closeness_centralities(const Graph& g,
+                           DistanceMatrixMap dist,
+                           CentralityMap cent,
+                           Measure measure)
+{
+    function_requires< VertexListGraphConcept<Graph> >();
+    typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
+    function_requires< ReadablePropertyMapConcept<DistanceMatrixMap,Vertex> >();
+    typedef typename property_traits<DistanceMatrixMap>::value_type DistanceMap;
+    function_requires< ReadablePropertyMapConcept<DistanceMap,Vertex> >();
+    function_requires< WritablePropertyMapConcept<CentralityMap,Vertex> >();
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+    typedef typename property_traits<CentralityMap>::value_type Centrality;
+
+    typename graph_traits<Graph>::vertex_iterator i, end;
+    for(boost::tie(i, end) = vertices(g); i != end; ++i) {
+        DistanceMap dm = get(dist, *i);
+        Centrality c = closeness_centrality(g, dm, measure);
+        put(cent, *i, c);
+    }
+}
+
+template <typename Graph,
+          typename DistanceMatrixMap,
+          typename CentralityMap>
+inline void
+all_closeness_centralities(const Graph& g,
+                            DistanceMatrixMap dist,
+                            CentralityMap cent)
+{
+    function_requires< GraphConcept<Graph> >();
+    typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
+    function_requires< ReadablePropertyMapConcept<DistanceMatrixMap,Vertex> >();
+    typedef typename property_traits<DistanceMatrixMap>::value_type DistanceMap;
+    function_requires< ReadablePropertyMapConcept<DistanceMap,Vertex> >();
+    typedef typename property_traits<DistanceMap>::value_type Distance;
+    typedef typename property_traits<CentralityMap>::value_type Result;
+
+    all_closeness_centralities(g, dist, cent, measure_closeness<Result>(g, DistanceMap()));
+}
+
+} /* namespace boost */
+
+#endif