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72 lines
1.4 KiB
72 lines
1.4 KiB
// Boost.Bimap |
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// |
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// Copyright (c) 2006-2007 Matias Capeletto |
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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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/// \file relation/pair_layout.hpp |
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/// \brief Tags for pair layouts |
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#ifndef BOOST_BIMAP_RELATION_PAIR_LAYOUT_HPP |
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#define BOOST_BIMAP_RELATION_PAIR_LAYOUT_HPP |
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#if defined(_MSC_VER) && (_MSC_VER>=1200) |
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#pragma once |
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#endif |
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#include <boost/config.hpp> |
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namespace boost { |
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namespace bimaps { |
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namespace relation { |
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//@{ |
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/// \brief Tag for normal layout. ( A,B -> A,B ) |
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struct normal_layout {}; |
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/// \brief Tag for mirror layout. ( A,B -> B,A ) |
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struct mirror_layout {}; |
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//@} |
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/** \struct boost::bimaps::relation::inverse_layout |
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\brief Metafunction to obtain the inverse of a layout. |
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\code |
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template< class Layout > |
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struct inverse_layout |
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{ |
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typedef {InverseLayout} type; |
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}; |
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\endcode |
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See also normal_layout, mirror_layout. |
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**/ |
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#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
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template< class Layout > |
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struct inverse_layout |
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{ |
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typedef normal_layout type; |
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}; |
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template<> |
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struct inverse_layout< normal_layout > |
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{ |
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typedef mirror_layout type; |
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}; |
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#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
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} // namespace relation |
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} // namespace bimaps |
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} // namespace boost |
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#endif // BOOST_BIMAP_RELATION_DETAIL_PAIR_LAYOUT_HPP |
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