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