53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
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// 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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