| // 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/is_tagged.hpp |
| /// \brief type_traits extension |
| |
| #ifndef BOOST_BIMAP_TAGS_SUPPORT_IS_TAGGED_HPP |
| #define BOOST_BIMAP_TAGS_SUPPORT_IS_TAGGED_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER>=1200) |
| #pragma once |
| #endif |
| |
| #include <boost/config.hpp> |
| |
| #include <boost/mpl/bool.hpp> |
| #include <boost/bimap/tags/tagged.hpp> |
| |
| /** \struct boost::bimaps::tags::support::is_tagged |
| \brief Type trait to check if a type is tagged. |
| |
| \code |
| template< class Type > |
| struct is_tagged |
| { |
| typedef {mpl::true_/mpl::false_} type; |
| }; |
| \endcode |
| |
| See also tagged. |
| **/ |
| |
| #ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
| |
| namespace boost { |
| namespace bimaps { |
| namespace tags { |
| namespace support { |
| |
| |
| // is_tagged metafunction |
| |
| template< class Type > |
| struct is_tagged : |
| ::boost::mpl::false_ {}; |
| |
| template< class Type, class Tag > |
| struct is_tagged< tagged< Type, Tag > > : |
| ::boost::mpl::true_ {}; |
| |
| } // namespace support |
| } // namespace tags |
| } // namespace bimaps |
| } // namespace boost |
| |
| #endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
| |
| #endif // BOOST_BIMAP_TAGS_SUPPORT_IS_TAGGED_HPP |
| |