| // Copyright (C) 2009 Trustees of Indiana University |
| // Authors: Jeremiah Willcock, Andrew Lumsdaine |
| |
| // 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/property_map for documentation. |
| |
| #ifndef BOOST_SHARED_ARRAY_PROPERTY_MAP_HPP |
| #define BOOST_SHARED_ARRAY_PROPERTY_MAP_HPP |
| |
| #include <boost/smart_ptr/shared_array.hpp> |
| #include <boost/property_map/property_map.hpp> |
| |
| namespace boost { |
| |
| template <class T, class IndexMap> |
| class shared_array_property_map |
| : public boost::put_get_helper<T&, shared_array_property_map<T, IndexMap> > |
| { |
| public: |
| typedef typename property_traits<IndexMap>::key_type key_type; |
| typedef T value_type; |
| typedef T& reference; |
| typedef boost::lvalue_property_map_tag category; |
| |
| inline shared_array_property_map(): data(), index() {} |
| |
| explicit inline shared_array_property_map( |
| size_t n, |
| const IndexMap& _id = IndexMap()) |
| : data(new T[n]), index(_id) {} |
| |
| inline T& operator[](key_type v) const { |
| return data[get(index, v)]; |
| } |
| |
| private: |
| boost::shared_array<T> data; |
| IndexMap index; |
| }; |
| |
| template <class T, class IndexMap> |
| shared_array_property_map<T, IndexMap> |
| make_shared_array_property_map(size_t n, const T&, const IndexMap& index) { |
| return shared_array_property_map<T, IndexMap>(n, index); |
| } |
| |
| } // end namespace boost |
| |
| #endif // BOOST_SHARED_ARRAY_PROPERTY_MAP_HPP |