Added boost header

test/external/boost/graph/property_maps/constant_property_map.hpp

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+// (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_CONSTANT_PROPERTY_HPP
+#define BOOST_GRAPH_CONSTANT_PROPERTY_HPP
+
+#include <boost/property_map/property_map.hpp>
+
+
+// TODO: This should really be part of the property maps library rather than
+// the Boost.Graph library.
+
+namespace boost {
+
+/**
+ * A constant property is one, that regardless of the edge or vertex given,
+ * will always return a constant value.
+ */
+template <typename Key, typename Value>
+struct constant_property_map
+    : public boost::put_get_helper<
+            const Value&,
+            constant_property_map<Key, Value>
+    >
+{
+    typedef Key key_type;
+    typedef Value value_type;
+    typedef const Value& reference;
+    typedef boost::readable_property_map_tag category;
+
+    constant_property_map()
+        : m_value()
+    { }
+
+    constant_property_map(const value_type &value)
+        : m_value(value)
+    { }
+
+    constant_property_map(const constant_property_map& copy)
+        : m_value(copy.m_value)
+    { }
+
+    inline reference operator [](const key_type&) const
+    { return m_value; }
+
+    value_type m_value;
+};
+
+template <typename Key, typename Value>
+inline constant_property_map<Key, Value>
+make_constant_property(const Value& value)
+{ return constant_property_map<Key, Value>(value); }
+
+} /* namespace boost */
+
+#endif

test/external/boost/graph/property_maps/container_property_map.hpp

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+// (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_CONTAINER_PROPERTY_MAP_HPP
+#define BOOST_GRAPH_CONTAINER_PROPERTY_MAP_HPP
+
+#include <boost/graph/detail/index.hpp>
+#include <boost/property_map/property_map.hpp>
+
+namespace boost
+{
+    // This is an adapter built over the iterator property map with
+    // more useful uniform construction semantics. Specifically, this
+    // requires the container rather than the iterator and the graph
+    // rather than the optional index map.
+    template <typename Graph, typename Key, typename Container>
+    struct container_property_map
+        : public boost::put_get_helper<
+                typename iterator_property_map<
+                        typename Container::iterator,
+                        typename property_map<
+                                Graph,
+                                typename detail::choose_indexer<Graph, Key>::index_type
+                            >::type
+                    >::reference,
+                    container_property_map<Graph, Key, Container>
+            >
+    {
+        typedef typename detail::choose_indexer<Graph, Key>::indexer_type indexer_type;
+        typedef typename indexer_type::index_type index_type;
+        typedef iterator_property_map<
+                typename Container::iterator,
+                typename property_map<Graph, index_type>::type
+            > map_type;
+        typedef typename map_type::key_type key_type;
+        typedef typename map_type::value_type value_type;
+        typedef typename map_type::reference reference;
+        typedef typename map_type::category category;
+
+        // The default constructor will *probably* crash if its actually
+        // used for referencing vertices since the underlying iterator
+        // map points past the end of an unknown container.
+        inline container_property_map()
+            : m_map()
+        { }
+
+        // This is the preferred constructor. It is invoked over the container
+        // and the graph explicitly. This requires that the underlying iterator
+        // map use the indices of the vertices in g rather than the default
+        // identity map.
+        //
+        // Note the const-cast this ensures the reference type of the
+        // vertex index map is non-const, which happens to be an
+        // artifact of passing const graph references.
+        inline container_property_map(Container& c, const Graph& g)
+            : m_map(c.begin(), indexer_type::index_map(const_cast<Graph&>(g)))
+        { }
+
+        // Typical copy constructor.
+        inline container_property_map(const container_property_map& x)
+            : m_map(x.m_map)
+        { }
+
+        // The [] operator delegates to the underlying map/
+        inline reference operator [](const key_type& k) const
+        { return m_map[k];  }
+
+        map_type m_map;
+    };
+}
+
+#endif

test/external/boost/graph/property_maps/matrix_property_map.hpp

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+// (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_MATRIX_PROPERTY_MAP_HPP
+#define BOOST_GRAPH_MATRIX_PROPERTY_MAP_HPP
+
+#include <boost/graph/property_maps/container_property_map.hpp>
+
+namespace boost
+{
+    // This property map is built specifically for property maps over
+    // matrices. Like the basic property map over a container, this builds
+    // the property abstraction over a matrix (usually a vector of vectors)
+    // and returns property maps over the nested containers.
+    template <typename Graph, typename Key, typename Matrix>
+    struct matrix_property_map
+        : boost::put_get_helper<
+                container_property_map<Graph, Key, typename Matrix::value_type>,
+                matrix_property_map<Graph, Key, Matrix> >
+    {
+        // abstract the indexing keys
+        typedef typename detail::choose_indexer<Graph, Key>::indexer_type indexer_type;
+
+        // aliases for the nested container and its corresponding map
+        typedef typename Matrix::value_type container_type;
+        typedef container_property_map<Graph, Key, container_type> map_type;
+
+        typedef Key key_type;
+
+        // This property map doesn't really provide access to nested containers,
+        // but returns property maps over them. Since property maps are all
+        // copy-constructible (or should be anyways), we never return references.
+        // As such, this property is only readable, but not writable. Curiously,
+        // the inner property map is actually an lvalue pmap.
+        typedef map_type value_type;
+        typedef map_type reference;
+        typedef readable_property_map_tag category;
+
+        matrix_property_map()
+            : m_matrix(0), m_graph(0)
+        { }
+
+        matrix_property_map(Matrix& m, const Graph& g)
+            : m_matrix(&m), m_graph(const_cast<Graph*>(&g))
+        { }
+
+        matrix_property_map(const matrix_property_map& x)
+            : m_matrix(x.m_matrix), m_graph(x.m_graph)
+        { }
+
+        inline reference operator [](key_type k) const
+        {
+            typedef typename indexer_type::value_type Index;
+            Index x = indexer_type::index(k, *m_graph);
+            return map_type((*m_matrix)[x], *m_graph);
+        }
+
+    private:
+        mutable Matrix* m_matrix;
+        mutable Graph* m_graph;
+    };
+}
+
+#endif

test/external/boost/graph/property_maps/null_property_map.hpp

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+// (C) Copyright Andrew Sutton 2007
+//
+// 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_NULL_PROPERTY_HPP
+#define BOOST_GRAPH_NULL_PROPERTY_HPP
+
+#include <boost/property_map/property_map.hpp>
+
+// TODO: This should really be part of the property maps library rather than
+// the Boost.Graph library.
+
+namespace boost
+{
+    // A null property is somewhat like the inverse of the constant
+    // property map except that instead of returning a single value,
+    // this eats any writes and cannot be read from.
+
+    template <typename Key, typename Value>
+    struct null_property_map
+    {
+        typedef Key key_type;
+        typedef Value value_type;
+        typedef void reference;
+        typedef boost::writable_property_map_tag category;
+    };
+
+    // The null_property_map<K,V> only has a put() function.
+    template <typename K, typename V>
+    void put(null_property_map<K,V>& pm, const K& key, const V& value)
+    { }
+
+    // A helper function for intantiating null property maps.
+    template <typename Key, typename Value>
+    inline null_property_map<Key, Value> make_null_property()
+    { return null_property_map<Key, Value>(); }
+}
+
+#endif