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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 relation/detail/access_builder.hpp /// \brief Define macros to help building metafunctions #ifndef BOOST_BIMAP_RELATION_ACCESS_BUILDER_HPP #define BOOST_BIMAP_RELATION_ACCESS_BUILDER_HPP #if defined(_MSC_VER) #pragma once #endif #include <boost/config.hpp> #include <boost/bimap/relation/support/member_with_tag.hpp> #include <boost/bimap/relation/member_at.hpp> #include <boost/call_traits.hpp> #include <boost/type_traits/is_const.hpp> #include <boost/mpl/if.hpp> #include <boost/mpl/not.hpp> #include <boost/utility/enable_if.hpp> /****************************************************************************** BIMAP SYMMETRIC ACCESS RESULT OF ******************************************************************************* namespace result_of { template< class Tag, class SymmetricType > struct NAME { typedef -unspecified- type; }; } // namespace result_of ******************************************************************************/ /*===========================================================================*/ #define BOOST_BIMAP_SYMMETRIC_ACCESS_RESULT_OF_BUILDER( \ \ NAME, \ METAFUNCTION_BASE \ ) \ \ namespace result_of { \ \ template< class Tag, class SymmetricType > \ struct NAME \ { \ typedef BOOST_DEDUCED_TYPENAME METAFUNCTION_BASE \ < \ Tag,SymmetricType \ \ >::type value_type; \ \ typedef BOOST_DEDUCED_TYPENAME mpl::if_< is_const<SymmetricType>, \ \ BOOST_DEDUCED_TYPENAME call_traits<value_type>::const_reference, \ \ BOOST_DEDUCED_TYPENAME call_traits<value_type>::reference \ \ >::type type; \ }; \ \ } /*===========================================================================*/ /****************************************************************************** BIMAP SYMMETRIC ACCESS IMPLEMENTATION ******************************************************************************* namespace detail { template< class Tag, class SymmetricType > typename result_of::NAME<Tag,SymmetricType>::type NAME( Tag , const Relation & ); } // namespace detail ******************************************************************************/ /*===========================================================================*/ #define BOOST_BIMAP_SYMMETRIC_ACCESS_IMPLEMENTATION_BUILDER( \ \ NAME, \ TP_SYMMETRIC, \ PARAMETER_NAME, \ LEFT_BODY, \ RIGHT_BODY \ ) \ \ namespace detail { \ \ \ \ template< class TP_SYMMETRIC > \ BOOST_DEDUCED_TYPENAME result_of::NAME \ < \ ::boost::bimaps::relation::member_at::left,TP_SYMMETRIC \ \ >::type \ \ NAME( ::boost::bimaps::relation::member_at::left, \ TP_SYMMETRIC & PARAMETER_NAME ) \ { \ LEFT_BODY; \ } \ \ template< class TP_SYMMETRIC > \ BOOST_DEDUCED_TYPENAME result_of::NAME \ < \ ::boost::bimaps::relation::member_at::right,TP_SYMMETRIC \ \ >::type \ \ NAME( ::boost::bimaps::relation::member_at::right, \ TP_SYMMETRIC & PARAMETER_NAME ) \ { \ RIGHT_BODY; \ } \ \ } /*===========================================================================*/ /****************************************************************************** BIMAP RELATION ACCESS INTERFACE ******************************************************************************* template< class Tag, class SymmetricType > typename result_of::NAME<Tag,SymmetricType>::type NAME( const SymmetricType & ); ******************************************************************************/ /*===========================================================================*/ #define BOOST_BIMAP_SYMMETRIC_ACCESS_INTERFACE_BUILDER( \ \ NAME \ ) \ \ template< class Tag, class SymmetricType > \ BOOST_DEDUCED_TYPENAME result_of::NAME<Tag,SymmetricType>::type \ NAME( SymmetricType & s ) \ { \ typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support:: \ member_with_tag \ < \ Tag,SymmetricType \ \ >::type member_at_tag; \ \ return detail::NAME(member_at_tag(),s); \ } /*===========================================================================*/ #endif // BOOST_BIMAP_RELATION_ACCESS_BUILDER_HPP