Added boost header

test/external/boost/property_map/vector_property_map.hpp

@@ -0,0 +1,185 @@
+// Copyright (C) Vladimir Prus 2003.
+// 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)
+//
+// See http://www.boost.org/libs/graph/vector_property_map.html for
+// documentation.
+//
+
+#ifndef VECTOR_PROPERTY_MAP_HPP_VP_2003_03_04
+#define VECTOR_PROPERTY_MAP_HPP_VP_2003_03_04
+
+#include <boost/property_map/property_map.hpp>
+#include <boost/shared_ptr.hpp>
+#include <vector>
+
+namespace boost {
+    template<typename T, typename IndexMap = identity_property_map>
+    class vector_property_map
+        : public boost::put_get_helper< 
+              typename std::iterator_traits< 
+                  typename std::vector<T>::iterator >::reference,
+              vector_property_map<T, IndexMap> >
+    {
+    public:
+        typedef typename property_traits<IndexMap>::key_type  key_type;
+        typedef T value_type;
+        typedef typename std::iterator_traits< 
+            typename std::vector<T>::iterator >::reference reference;
+        typedef boost::lvalue_property_map_tag category;
+        
+        vector_property_map(const IndexMap& index = IndexMap())
+        : store(new std::vector<T>()), index(index)
+        {}
+
+        vector_property_map(unsigned initial_size, 
+                            const IndexMap& index = IndexMap())
+        : store(new std::vector<T>(initial_size)), index(index)
+        {}
+
+        typename std::vector<T>::iterator storage_begin()
+        {
+            return store->begin();
+        }
+
+        typename std::vector<T>::iterator storage_end()
+        {
+            return store->end();
+        }
+
+        typename std::vector<T>::const_iterator storage_begin() const
+        {
+            return store->begin();
+        }
+
+        typename std::vector<T>::const_iterator storage_end() const
+        {
+            return store->end();
+        }
+                 
+        IndexMap&       get_index_map()       { return index; }
+        const IndexMap& get_index_map() const { return index; }
+          
+    public:
+        // Copy ctor absent, default semantics is OK.
+        // Assignment operator absent, default semantics is OK.
+        // CONSIDER: not sure that assignment to 'index' is correct.
+        
+        reference operator[](const key_type& v) const {
+            typename property_traits<IndexMap>::value_type i = get(index, v);
+            if (static_cast<unsigned>(i) >= store->size()) {
+                store->resize(i + 1, T());
+            }
+            return (*store)[i];
+        }
+    private:
+        // Conceptually, we have a vector of infinite size. For practical 
+        // purposes, we start with an empty vector and grow it as needed.
+        // Note that we cannot store pointer to vector here -- we cannot
+        // store pointer to data, because if copy of property map resizes
+        // the vector, the pointer to data will be invalidated. 
+        // I wonder if class 'pmap_ref' is simply needed.
+        shared_ptr< std::vector<T> > store;        
+        IndexMap index;
+    };
+    
+    template<typename T, typename IndexMap>
+    vector_property_map<T, IndexMap>
+    make_vector_property_map(IndexMap index)
+    {
+        return vector_property_map<T, IndexMap>(index);
+    }
+}
+
+#ifdef BOOST_GRAPH_USE_MPI
+#include <boost/property_map/parallel/distributed_property_map.hpp>
+#include <boost/property_map/parallel/local_property_map.hpp>
+
+namespace boost {
+
+/** Distributed vector property map.
+ *
+ * This specialization of @ref vector_property_map builds a
+ * distributed vector property map given the local index maps
+ * generated by distributed graph types that automatically have index
+ * properties. 
+ *
+ * This specialization is useful when creating external distributed
+ * property maps via the same syntax used to create external
+ * sequential property maps.
+ */
+template<typename T, typename ProcessGroup, typename GlobalMap, 
+         typename StorageMap>
+class vector_property_map<T, 
+                          local_property_map<ProcessGroup, GlobalMap,
+                                             StorageMap> >
+  : public parallel::distributed_property_map<
+             ProcessGroup, GlobalMap, vector_property_map<T, StorageMap> >
+{
+  typedef vector_property_map<T, StorageMap> local_iterator_map;
+
+  typedef parallel::distributed_property_map<ProcessGroup, GlobalMap, 
+                                             local_iterator_map> inherited;
+
+  typedef local_property_map<ProcessGroup, GlobalMap, StorageMap> index_map_type;
+
+public:
+  vector_property_map(const index_map_type& index = index_map_type())
+    : inherited(index.process_group(), index.global(),
+                local_iterator_map(index.base())) { }
+
+  vector_property_map(unsigned inital_size, 
+                      const index_map_type& index = index_map_type())
+    : inherited(index.process_group(),  index.global(),
+                local_iterator_map(inital_size, index.base())) { }
+};
+
+/** Distributed vector property map.
+ *
+ * This specialization of @ref vector_property_map builds a
+ * distributed vector property map given the local index maps
+ * generated by distributed graph types that automatically have index
+ * properties. 
+ *
+ * This specialization is useful when creating external distributed
+ * property maps via the same syntax used to create external
+ * sequential property maps.
+ */
+template<typename T, typename ProcessGroup, typename GlobalMap, 
+         typename StorageMap>
+class vector_property_map<
+        T, 
+        parallel::distributed_property_map<
+          ProcessGroup,
+          GlobalMap,
+          StorageMap
+        >
+      > 
+  : public parallel::distributed_property_map<
+             ProcessGroup, GlobalMap, vector_property_map<T, StorageMap> >
+{
+  typedef vector_property_map<T, StorageMap> local_iterator_map;
+
+  typedef parallel::distributed_property_map<ProcessGroup, GlobalMap, 
+                                             local_iterator_map> inherited;
+
+  typedef parallel::distributed_property_map<ProcessGroup, GlobalMap, 
+                                             StorageMap>
+    index_map_type;
+
+public:
+  vector_property_map(const index_map_type& index = index_map_type())
+    : inherited(index.process_group(), index.global(),
+                local_iterator_map(index.base())) { }
+
+  vector_property_map(unsigned inital_size, 
+                      const index_map_type& index = index_map_type())
+    : inherited(index.process_group(), index.global(),
+                local_iterator_map(inital_size, index.base())) { }
+};
+
+}
+#endif // BOOST_GRAPH_USE_MPI
+
+#endif