3 // Copyright (c) 2006-2007 Matias Capeletto
5 // Distributed under the Boost Software License, Version 1.0.
6 // (See accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt)
9 /// \file container_adaptor/detail/comparison_adaptor.hpp
10 /// \brief Comparison adaptor.
12 #ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
13 #define BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP
15 #if defined(_MSC_VER) && (_MSC_VER>=1200)
19 #include <boost/config.hpp>
21 #include <boost/call_traits.hpp>
26 namespace container_adaptor {
29 /// \brief Comparison adaptor
32 A simple comparison adaptor.
35 template < class Compare, class NewType, class Converter >
36 struct comparison_adaptor : std::binary_function<NewType,NewType,bool>
38 comparison_adaptor( const Compare & comp, const Converter & conv)
39 : compare(comp), converter(conv) {}
41 bool operator()( BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type x,
42 BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type y) const
44 return compare( converter(x), converter(y) );
52 template < class Compare, class NewType, class Converter >
53 struct compatible_comparison_adaptor : std::binary_function<NewType,NewType,bool>
55 compatible_comparison_adaptor( const Compare & comp, const Converter & conv)
56 : compare(comp), converter(conv) {}
58 template< class CompatibleTypeLeft, class CompatibleTypeRight >
59 bool operator()( const CompatibleTypeLeft & x,
60 const CompatibleTypeRight & y) const
62 return compare( converter(x), converter(y) );
71 /// \brief Unary Check adaptor
74 A simple unary check adaptor.
77 template < class Compare, class NewType, class Converter >
78 struct unary_check_adaptor : std::unary_function<NewType,bool>
80 unary_check_adaptor( const Compare & comp, const Converter & conv ) :
81 compare(comp), converter(conv) {}
83 bool operator()( BOOST_DEDUCED_TYPENAME call_traits<NewType>::param_type x) const
85 return compare( converter(x) );
94 } // namespace container_adaptor
99 #endif // BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_COMPARISON_ADAPTOR_HPP