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- // Boost.Bimap
- //
- // Copyright (c) 2006-2007 Matias Capeletto
- //
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- /// \file container_adaptor/detail/comparison_adaptor.hpp
- /// \brief Comparison adaptor.
- #ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
- #define BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/config.hpp>
- #include <boost/call_traits.hpp>
- namespace boost {
- namespace bimaps {
- namespace container_adaptor {
- namespace detail {
- /// \brief Comparison adaptor
- /**
- A simple comparison adaptor.
- **/
- template < class Compare, class NewType, class Converter >
- struct comparison_adaptor
- {
- typedef NewType first_argument_type;
- typedef NewType second_argument_type;
- typedef bool result_type;
- comparison_adaptor( const Compare & comp, const Converter & conv)
- : compare(comp), converter(conv) {}
- bool operator()( BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type x,
- BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type y) const
- {
- return compare( converter(x), converter(y) );
- }
- private:
- Compare compare;
- Converter converter;
- };
- template < class Compare, class NewType, class Converter >
- struct compatible_comparison_adaptor
- {
- typedef NewType first_argument_type;
- typedef NewType second_argument_type;
- typedef bool result_type;
- compatible_comparison_adaptor( const Compare & comp, const Converter & conv)
- : compare(comp), converter(conv) {}
- template< class CompatibleTypeLeft, class CompatibleTypeRight >
- bool operator()( const CompatibleTypeLeft & x,
- const CompatibleTypeRight & y) const
- {
- return compare( converter(x), converter(y) );
- }
- private:
- Compare compare;
- Converter converter;
- };
- /// \brief Unary Check adaptor
- /**
- A simple unary check adaptor.
- **/
- template < class Compare, class NewType, class Converter >
- struct unary_check_adaptor
- {
- typedef BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type argument_type;
- typedef bool result_type;
- unary_check_adaptor( const Compare & comp, const Converter & conv ) :
- compare(comp), converter(conv) {}
- bool operator()( BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type x) const
- {
- return compare( converter(x) );
- }
- private:
- Compare compare;
- Converter converter;
- };
- } // namespace detail
- } // namespace container_adaptor
- } // namespace bimaps
- } // namespace boost
- #endif // BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
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