1 // Copyright (C) 2009 Trustees of Indiana University
2 // Authors: Jeremiah Willcock, Andrew Lumsdaine
3
4 // Distributed under the Boost Software License, Version 1.0. (See
5 // accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt)
7
8 // See http://www.boost.org/libs/property_map for documentation.
9
10 #ifndef BOOST_SHARED_ARRAY_PROPERTY_MAP_HPP
11 #define BOOST_SHARED_ARRAY_PROPERTY_MAP_HPP
12
13 #include <boost/smart_ptr/shared_array.hpp>
14 #include <boost/property_map/property_map.hpp>
15
16 namespace boost {
17
18 template <class T, class IndexMap>
19 class shared_array_property_map
20 : public boost::put_get_helper<T&, shared_array_property_map<T, IndexMap> >
21 {
22 public:
23 typedef typename property_traits<IndexMap>::key_type key_type;
24 typedef T value_type;
25 typedef T& reference;
26 typedef boost::lvalue_property_map_tag category;
27
shared_array_property_map()28 inline shared_array_property_map(): data(), index() {}
29
shared_array_property_map(size_t n,const IndexMap & _id=IndexMap ())30 explicit inline shared_array_property_map(
31 size_t n,
32 const IndexMap& _id = IndexMap())
33 : data(new T[n]), index(_id) {}
34
operator [](key_type v) const35 inline T& operator[](key_type v) const {
36 return data[get(index, v)];
37 }
38
39 private:
40 boost::shared_array<T> data;
41 IndexMap index;
42 };
43
44 template <class T, class IndexMap>
45 shared_array_property_map<T, IndexMap>
make_shared_array_property_map(size_t n,const T &,const IndexMap & index)46 make_shared_array_property_map(size_t n, const T&, const IndexMap& index) {
47 return shared_array_property_map<T, IndexMap>(n, index);
48 }
49
50 } // end namespace boost
51
52 #endif // BOOST_SHARED_ARRAY_PROPERTY_MAP_HPP
53