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83 lines
2.0 KiB
83 lines
2.0 KiB
// |
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// Copyright (c) 2009 Rutger ter Borg |
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// Copyright (c) 2010 Thomas Klimpel |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See 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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// |
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#ifndef BOOST_NUMERIC_BINDINGS_VECTOR_VIEW_HPP |
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#define BOOST_NUMERIC_BINDINGS_VECTOR_VIEW_HPP |
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#include <boost/numeric/bindings/detail/adaptable_type.hpp> |
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namespace boost { |
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namespace numeric { |
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namespace bindings { |
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namespace detail { |
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template< typename T > |
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struct vector_view_wrapper: |
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adaptable_type< vector_view_wrapper<T> > { |
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typedef T value_type; |
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vector_view_wrapper( T* t, std::size_t size ): |
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m_t( t ), |
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m_size( size ) {} |
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T* m_t; |
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std::size_t m_size; |
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}; |
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template< typename T, typename Id, typename Enable > |
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struct adaptor< vector_view_wrapper<T>, Id, Enable > { |
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typedef typename Id::value_type value_type; |
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typedef mpl::map< |
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mpl::pair< tag::value_type, value_type >, |
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mpl::pair< tag::entity, tag::vector >, |
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mpl::pair< tag::size_type<1>, std::ptrdiff_t >, |
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mpl::pair< tag::data_structure, tag::linear_array >, |
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mpl::pair< tag::stride_type<1>, tag::contiguous > |
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> property_map; |
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static std::ptrdiff_t size1( const Id& id ) { |
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return id.m_size; |
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} |
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static value_type* begin_value( Id& id ) { |
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return id.m_t; |
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} |
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static value_type* end_value( Id& id ) { |
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return id.m_t + id.m_size; |
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} |
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}; |
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} // namespace detail |
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namespace result_of { |
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template< typename T > |
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struct vector_view { |
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typedef detail::vector_view_wrapper<T> type; |
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}; |
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} // namespace result_of |
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template< typename T > |
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detail::vector_view_wrapper<T> const vector_view( T* t, std::size_t size ) { |
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return detail::vector_view_wrapper<T>( t, size ); |
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} |
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template< typename T > |
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detail::vector_view_wrapper<const T> const vector_view( const T* t, std::size_t size ) { |
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return detail::vector_view_wrapper<const T>( t, size ); |
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} |
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} // namespace bindings |
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} // namespace numeric |
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} // namespace boost |
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#endif
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