102 lines
2.7 KiB
C++
Executable File
102 lines
2.7 KiB
C++
Executable File
// 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 container_adaptor/detail/comparison_adaptor.hpp
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/// \brief Comparison adaptor.
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#ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
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#define BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_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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#include <boost/call_traits.hpp>
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#include <functional>
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namespace boost {
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namespace bimaps {
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namespace container_adaptor {
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namespace detail {
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/// \brief Comparison adaptor
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/**
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A simple comparison adaptor.
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**/
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template < class Compare, class NewType, class Converter >
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struct comparison_adaptor : std::binary_function<NewType,NewType,bool>
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{
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comparison_adaptor( const Compare & comp, const Converter & conv)
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: compare(comp), converter(conv) {}
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bool operator()( BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type x,
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BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type y) const
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{
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return compare( converter(x), converter(y) );
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}
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private:
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Compare compare;
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Converter converter;
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};
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template < class Compare, class NewType, class Converter >
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struct compatible_comparison_adaptor : std::binary_function<NewType,NewType,bool>
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{
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compatible_comparison_adaptor( const Compare & comp, const Converter & conv)
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: compare(comp), converter(conv) {}
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template< class CompatibleTypeLeft, class CompatibleTypeRight >
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bool operator()( const CompatibleTypeLeft & x,
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const CompatibleTypeRight & y) const
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{
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return compare( converter(x), converter(y) );
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}
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private:
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Compare compare;
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Converter converter;
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};
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/// \brief Unary Check adaptor
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/**
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A simple unary check adaptor.
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**/
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template < class Compare, class NewType, class Converter >
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struct unary_check_adaptor : std::unary_function<NewType,bool>
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{
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unary_check_adaptor( const Compare & comp, const Converter & conv ) :
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compare(comp), converter(conv) {}
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bool operator()( BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type x) const
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{
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return compare( converter(x) );
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}
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private:
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Compare compare;
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Converter converter;
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};
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} // namespace detail
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} // namespace container_adaptor
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} // namespace bimaps
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} // namespace boost
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#endif // BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
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