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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/metadata_access_builder.hpp
/// \brief Define macros to help building metafunctions
#ifndef BOOST_BIMAP_RELATION_DETAIL_METADATA_ACCESS_BUILDER_HPP
#define BOOST_BIMAP_RELATION_DETAIL_METADATA_ACCESS_BUILDER_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/config.hpp>
#include <boost/bimap/relation/support/is_tag_of_member_at.hpp>
#include <boost/bimap/detail/debug/static_error.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/preprocessor/cat.hpp>
/******************************************************************************
BIMAP SYMMETRIC METADATA ACCESS INTERFACE
*******************************************************************************
template< class Tag, class SymmetricType >
struct NAME
{
typedef -unspecified- type;
};
******************************************************************************/
/*===========================================================================*/
#define BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER( \
\
NAME, \
METADATA_BY_LEFT, \
METADATA_BY_RIGHT \
) \
\
template \
< \
class Tag, \
class SymmetricType, \
class Enable = void \
> \
struct NAME \
{ \
BOOST_BIMAP_STATIC_ERROR( \
BOOST_PP_CAT(NAME,_FAILURE), \
(SymmetricType,Tag) \
); \
}; \
\
template< class Tag, class SymmetricType > \
struct NAME \
< \
Tag, SymmetricType, \
BOOST_DEDUCED_TYPENAME enable_if \
< \
::boost::bimaps::relation::support::is_tag_of_member_at_left \
< \
Tag, \
SymmetricType \
> \
\
>::type \
> \
{ \
typedef BOOST_DEDUCED_TYPENAME SymmetricType::METADATA_BY_LEFT type; \
}; \
\
template< class Tag, class SymmetricType > \
struct NAME \
< \
Tag, SymmetricType, \
BOOST_DEDUCED_TYPENAME enable_if \
< \
::boost::bimaps::relation::support::is_tag_of_member_at_right \
< \
Tag, \
SymmetricType \
> \
\
>::type \
> \
{ \
typedef BOOST_DEDUCED_TYPENAME SymmetricType::METADATA_BY_RIGHT type; \
};
/*===========================================================================*/
#endif // BOOST_BIMAP_RELATION_DETAIL_METADATA_ACCES_BUILDER_HPP
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