| // 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) && (_MSC_VER>=1200) |
| #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 |
| |
| |