// 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 tags/support/overwrite_tagged.hpp
|
/// \brief Hard tagging
|
|
#ifndef BOOST_BIMAP_TAGS_SUPPORT_OVERWRITE_TAGGED_HPP
|
#define BOOST_BIMAP_TAGS_SUPPORT_OVERWRITE_TAGGED_HPP
|
|
#if defined(_MSC_VER)
|
#pragma once
|
#endif
|
|
#include <boost/config.hpp>
|
|
#include <boost/bimap/tags/tagged.hpp>
|
|
/** \struct boost::bimaps::tags::support::overwrite_tagged
|
\brief Hard tagging metafunction
|
|
\code
|
template< class Type, class Tag >
|
struct overwrite_tagged
|
{
|
typedef {TaggedType} type;
|
};
|
\endcode
|
|
If the type is not tagged, this metafunction returns a tagged type with the
|
passed tag. If it is tagged it returns a new tagged type with the tag replaced
|
by the one passed as a parameter.
|
|
See also tagged, default_tagged.
|
**/
|
|
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
|
|
namespace boost {
|
namespace bimaps {
|
namespace tags {
|
namespace support {
|
|
|
// Change the tag
|
|
template< class Type, class NewTag >
|
struct overwrite_tagged
|
{
|
typedef tagged<Type,NewTag> type;
|
};
|
|
template< class Type, class OldTag, class NewTag >
|
struct overwrite_tagged< tagged< Type, OldTag >, NewTag >
|
{
|
typedef tagged<Type,NewTag> type;
|
};
|
|
|
} // namespace support
|
} // namespace tags
|
} // namespace bimaps
|
} // namespace boost
|
|
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
|
|
#endif // BOOST_BIMAP_TAGS_SUPPORT_OVERWRITE_TAGGED_HPP
|
