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357 lines
12 KiB
357 lines
12 KiB
5 years ago
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//=======================================================================
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// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
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// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//=======================================================================
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#ifndef BOOST_GRAPH_PROPERTIES_HPP
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#define BOOST_GRAPH_PROPERTIES_HPP
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#include <boost/config.hpp>
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#include <boost/assert.hpp>
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#include <boost/pending/property.hpp>
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#include <boost/detail/workaround.hpp>
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// Include the property map library and extensions in the BGL.
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#include <boost/property_map/property_map.hpp>
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#include <boost/graph/property_maps/constant_property_map.hpp>
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#include <boost/graph/property_maps/null_property_map.hpp>
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#include <boost/graph/graph_traits.hpp>
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#include <boost/type_traits.hpp>
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#include <boost/limits.hpp>
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#include <boost/mpl/and.hpp>
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#include <boost/mpl/not.hpp>
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#include <boost/mpl/if.hpp>
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namespace boost {
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enum default_color_type { white_color, gray_color, green_color, red_color, black_color };
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template <class ColorValue>
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struct color_traits {
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static default_color_type white() { return white_color; }
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static default_color_type gray() { return gray_color; }
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static default_color_type green() { return green_color; }
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static default_color_type red() { return red_color; }
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static default_color_type black() { return black_color; }
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};
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// These functions are now obsolete, replaced by color_traits.
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inline default_color_type white(default_color_type) { return white_color; }
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inline default_color_type gray(default_color_type) { return gray_color; }
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inline default_color_type green(default_color_type) { return green_color; }
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inline default_color_type red(default_color_type) { return red_color; }
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inline default_color_type black(default_color_type) { return black_color; }
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struct graph_property_tag { };
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struct vertex_property_tag { };
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struct edge_property_tag { };
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// See examples/edge_property.cpp for how to use this.
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#define BOOST_INSTALL_PROPERTY(KIND, NAME) \
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template <> struct property_kind<KIND##_##NAME##_t> { \
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typedef KIND##_property_tag type; \
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}
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#define BOOST_DEF_PROPERTY(KIND, NAME) \
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enum KIND##_##NAME##_t { KIND##_##NAME }; \
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BOOST_INSTALL_PROPERTY(KIND, NAME)
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// These three are defined in boost/pending/property.hpp
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BOOST_INSTALL_PROPERTY(vertex, all);
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BOOST_INSTALL_PROPERTY(edge, all);
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BOOST_INSTALL_PROPERTY(graph, all);
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BOOST_DEF_PROPERTY(vertex, index);
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BOOST_DEF_PROPERTY(vertex, index1);
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BOOST_DEF_PROPERTY(vertex, index2);
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BOOST_DEF_PROPERTY(vertex, root);
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BOOST_DEF_PROPERTY(edge, index);
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BOOST_DEF_PROPERTY(edge, name);
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BOOST_DEF_PROPERTY(edge, weight);
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BOOST_DEF_PROPERTY(edge, weight2);
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BOOST_DEF_PROPERTY(edge, color);
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BOOST_DEF_PROPERTY(vertex, name);
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BOOST_DEF_PROPERTY(graph, name);
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BOOST_DEF_PROPERTY(vertex, distance);
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BOOST_DEF_PROPERTY(vertex, distance2);
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BOOST_DEF_PROPERTY(vertex, color);
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BOOST_DEF_PROPERTY(vertex, degree);
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BOOST_DEF_PROPERTY(vertex, in_degree);
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BOOST_DEF_PROPERTY(vertex, out_degree);
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BOOST_DEF_PROPERTY(vertex, current_degree);
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BOOST_DEF_PROPERTY(vertex, priority);
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BOOST_DEF_PROPERTY(vertex, discover_time);
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BOOST_DEF_PROPERTY(vertex, finish_time);
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BOOST_DEF_PROPERTY(vertex, predecessor);
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BOOST_DEF_PROPERTY(vertex, rank);
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BOOST_DEF_PROPERTY(vertex, centrality);
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BOOST_DEF_PROPERTY(vertex, lowpoint);
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BOOST_DEF_PROPERTY(vertex, potential);
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BOOST_DEF_PROPERTY(vertex, update);
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BOOST_DEF_PROPERTY(vertex, underlying);
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BOOST_DEF_PROPERTY(edge, reverse);
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BOOST_DEF_PROPERTY(edge, capacity);
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BOOST_DEF_PROPERTY(edge, flow);
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BOOST_DEF_PROPERTY(edge, residual_capacity);
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BOOST_DEF_PROPERTY(edge, centrality);
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BOOST_DEF_PROPERTY(edge, discover_time);
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BOOST_DEF_PROPERTY(edge, update);
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BOOST_DEF_PROPERTY(edge, finished);
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BOOST_DEF_PROPERTY(edge, underlying);
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BOOST_DEF_PROPERTY(graph, visitor);
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// These tags are used for property bundles
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// These three are defined in boost/pending/property.hpp
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BOOST_INSTALL_PROPERTY(graph, bundle);
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BOOST_INSTALL_PROPERTY(vertex, bundle);
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BOOST_INSTALL_PROPERTY(edge, bundle);
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// These tags are used to denote the owners and local descriptors
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// for the vertices and edges of a distributed graph.
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BOOST_DEF_PROPERTY(vertex, global);
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BOOST_DEF_PROPERTY(vertex, owner);
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BOOST_DEF_PROPERTY(vertex, local);
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BOOST_DEF_PROPERTY(edge, global);
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BOOST_DEF_PROPERTY(edge, owner);
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BOOST_DEF_PROPERTY(edge, local);
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BOOST_DEF_PROPERTY(vertex, local_index);
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BOOST_DEF_PROPERTY(edge, local_index);
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#undef BOOST_DEF_PROPERTY
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namespace detail {
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template <typename G, typename Tag>
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struct property_kind_from_graph: property_kind<Tag> {};
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#ifndef BOOST_GRAPH_NO_BUNDLED_PROPERTIES
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template <typename G, typename R, typename T>
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struct property_kind_from_graph<G, R T::*> {
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typedef typename boost::mpl::if_<
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boost::is_base_of<T, typename vertex_bundle_type<G>::type>,
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vertex_property_tag,
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typename boost::mpl::if_<
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boost::is_base_of<T, typename edge_bundle_type<G>::type>,
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edge_property_tag,
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typename boost::mpl::if_<
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boost::is_base_of<T, typename graph_bundle_type<G>::type>,
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graph_property_tag,
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void>::type>::type>::type type;
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};
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#endif
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struct dummy_edge_property_selector {
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template <class Graph, class Property, class Tag>
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struct bind_ {
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typedef identity_property_map type;
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typedef identity_property_map const_type;
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};
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};
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struct dummy_vertex_property_selector {
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template <class Graph, class Property, class Tag>
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struct bind_ {
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typedef identity_property_map type;
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typedef identity_property_map const_type;
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};
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};
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} // namespace detail
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// Graph classes can either partially specialize property_map
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// or they can specialize these two selector classes.
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template <class GraphTag>
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struct edge_property_selector {
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typedef detail::dummy_edge_property_selector type;
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};
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template <class GraphTag>
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struct vertex_property_selector {
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typedef detail::dummy_vertex_property_selector type;
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};
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namespace detail {
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template <typename A> struct return_void {typedef void type;};
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template <typename Graph, typename Enable = void>
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struct graph_tag_or_void {
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typedef void type;
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};
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template <typename Graph>
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struct graph_tag_or_void<Graph, typename return_void<typename Graph::graph_tag>::type> {
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typedef typename Graph::graph_tag type;
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};
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template <class Graph, class PropertyTag>
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struct edge_property_map
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: edge_property_selector<
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typename graph_tag_or_void<Graph>::type
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>::type::template bind_<
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Graph,
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typename edge_property_type<Graph>::type,
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PropertyTag>
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{};
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template <class Graph, class PropertyTag>
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struct vertex_property_map
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: vertex_property_selector<
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typename graph_tag_or_void<Graph>::type
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>::type::template bind_<
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Graph,
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typename vertex_property_type<Graph>::type,
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PropertyTag>
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{};
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} // namespace detail
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template <class Graph, class Property, class Enable = void>
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struct property_map:
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mpl::if_<
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is_same<typename detail::property_kind_from_graph<Graph, Property>::type, edge_property_tag>,
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detail::edge_property_map<Graph, Property>,
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detail::vertex_property_map<Graph, Property> >::type
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{};
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// shortcut for accessing the value type of the property map
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template <class Graph, class Property>
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class property_map_value {
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typedef typename property_map<Graph, Property>::const_type PMap;
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public:
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typedef typename property_traits<PMap>::value_type type;
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};
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template <class Graph, class Property>
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class graph_property {
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public:
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typedef typename property_value<
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typename boost::graph_property_type<Graph>::type, Property
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>::type type;
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};
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template <typename Graph> struct vertex_property: vertex_property_type<Graph> {};
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template <typename Graph> struct edge_property: edge_property_type<Graph> {};
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template <typename Graph>
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class degree_property_map
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: public put_get_helper<typename graph_traits<Graph>::degree_size_type,
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degree_property_map<Graph> >
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{
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public:
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typedef typename graph_traits<Graph>::vertex_descriptor key_type;
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typedef typename graph_traits<Graph>::degree_size_type value_type;
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typedef value_type reference;
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typedef readable_property_map_tag category;
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degree_property_map(const Graph& g) : m_g(g) { }
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value_type operator[](const key_type& v) const {
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return degree(v, m_g);
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}
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private:
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const Graph& m_g;
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};
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template <typename Graph>
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inline degree_property_map<Graph>
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make_degree_map(const Graph& g) {
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return degree_property_map<Graph>(g);
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}
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//========================================================================
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// Iterator Property Map Generating Functions contributed by
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// Kevin Vanhorn. (see also the property map generating functions
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// in boost/property_map/property_map.hpp)
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#if !defined(BOOST_NO_STD_ITERATOR_TRAITS)
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// A helper function for creating a vertex property map out of a
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// random access iterator and the internal vertex index map from a
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// graph.
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template <class PropertyGraph, class RandomAccessIterator>
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inline
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iterator_property_map<
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RandomAccessIterator,
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typename property_map<PropertyGraph, vertex_index_t>::type,
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typename std::iterator_traits<RandomAccessIterator>::value_type,
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typename std::iterator_traits<RandomAccessIterator>::reference
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>
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make_iterator_vertex_map(RandomAccessIterator iter, const PropertyGraph& g)
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{
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return make_iterator_property_map(iter, get(vertex_index, g));
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}
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// Use this next function when vertex_descriptor is known to be an
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// integer type, with values ranging from 0 to num_vertices(g).
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//
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template <class RandomAccessIterator>
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inline
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iterator_property_map<
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RandomAccessIterator,
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identity_property_map,
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typename std::iterator_traits<RandomAccessIterator>::value_type,
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typename std::iterator_traits<RandomAccessIterator>::reference
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>
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make_iterator_vertex_map(RandomAccessIterator iter)
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{
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return make_iterator_property_map(iter, identity_property_map());
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}
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#endif
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template <class PropertyGraph, class RandomAccessContainer>
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inline
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iterator_property_map<
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typename RandomAccessContainer::iterator,
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typename property_map<PropertyGraph, vertex_index_t>::type,
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typename RandomAccessContainer::value_type,
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typename RandomAccessContainer::reference
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>
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make_container_vertex_map(RandomAccessContainer& c, const PropertyGraph& g)
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{
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BOOST_ASSERT(c.size() >= num_vertices(g));
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return make_iterator_vertex_map(c.begin(), g);
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}
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template <class RandomAccessContainer> inline
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iterator_property_map<
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typename RandomAccessContainer::iterator,
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identity_property_map,
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typename RandomAccessContainer::value_type,
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typename RandomAccessContainer::reference
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>
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make_container_vertex_map(RandomAccessContainer& c)
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{
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return make_iterator_vertex_map(c.begin());
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}
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// NOTE: These functions are declared, but never defined since they need to
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// be overloaded by graph implementations. However, we need them to be
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// declared for the functions below.
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template<typename Graph, typename Tag>
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typename graph_property<Graph, graph_bundle_t>::type&
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get_property(Graph& g, Tag);
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template<typename Graph, typename Tag>
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typename graph_property<Graph, graph_bundle_t>::type const&
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get_property(Graph const& g, Tag);
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#ifndef BOOST_GRAPH_NO_BUNDLED_PROPERTIES
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// NOTE: This operation is a simple adaptor over the overloaded get_property
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// operations.
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template<typename Graph>
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inline typename graph_property<Graph, graph_bundle_t>::type&
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get_property(Graph& g) {
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return get_property(g, graph_bundle);
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}
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template<typename Graph>
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inline typename graph_property<Graph, graph_bundle_t>::type const&
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get_property(const Graph& g) {
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return get_property(g, graph_bundle);
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}
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#endif
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} // namespace boost
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#endif /* BOOST_GRAPH_PROPERTIES_HPP */
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