// 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 support/key_type_by.hpp | |
/// \brief Metafunction to access the set types of a bimap | |
#ifndef BOOST_BIMAP_SUPPORT_KEY_TYPE_BY_HPP | |
#define BOOST_BIMAP_SUPPORT_KEY_TYPE_BY_HPP | |
#if defined(_MSC_VER) && (_MSC_VER>=1200) | |
#pragma once | |
#endif | |
#include <boost/config.hpp> | |
#include <boost/bimap/relation/detail/metadata_access_builder.hpp> | |
/** \struct boost::bimaps::support::key_type_by | |
\brief Metafunction to obtain the key type of one of the sides in a bimap | |
The tag parameter can be either a user defined tag or \c member_at::{side}. | |
The returned type is one of the {SetType}_of definition classes. | |
\code | |
template< class Tag, class Bimap > | |
struct key_type_by | |
{ | |
typedef typename Bimap::{side}_key_type type; | |
}; | |
\endcode | |
See also member_at. | |
\ingroup bimap_group | |
**/ | |
namespace boost { | |
namespace bimaps { | |
namespace support { | |
// Implementation of key type type of metafunction | |
BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER | |
( | |
key_type_by, | |
left_key_type, | |
right_key_type | |
) | |
} // namespace support | |
} // namespace bimaps | |
} // namespace boost | |
#endif // BOOST_BIMAP_SUPPORT_KEY_TYPE_BY_HPP | |