| // 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/support/is_tag_of_member_at.hpp |
| /// \brief is_tag_of_member_at<tag,relation> metafunction |
| |
| #ifndef BOOST_BIMAP_RELATION_SUPPORT_IS_TAG_OF_MEMBER_AT_HPP |
| #define BOOST_BIMAP_RELATION_SUPPORT_IS_TAG_OF_MEMBER_AT_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER>=1200) |
| #pragma once |
| #endif |
| |
| #include <boost/config.hpp> |
| |
| #include <boost/bimap/relation/member_at.hpp> |
| #include <boost/type_traits/is_same.hpp> |
| |
| #include <boost/mpl/bool.hpp> |
| #include <boost/utility/enable_if.hpp> |
| #include <boost/bimap/relation/support/member_with_tag.hpp> |
| |
| /** \struct boost::bimaps::relation::support::is_tag_of_member_at_left |
| |
| \brief Metafunction to test if a user tag is refering to the left member. |
| |
| \code |
| |
| template< class Tag, class Relation > |
| struct is_tag_of_member_at_left : {true_|false_} {}; |
| |
| \endcode |
| |
| This metafunction is somewhat redundant with member_with_tag, but it is included |
| because it is a lot easier to metaprogram with it. The result type is the |
| same that: |
| |
| \code |
| |
| is_same< member_with_tag<Tag,Relation>::type , member_at::left >::type |
| |
| \endcode |
| |
| See also member_with_tag, member_at, is_tag_of_member_at_right. |
| \ingroup relation_group |
| **/ |
| |
| |
| /** \struct boost::bimaps::relation::support::is_tag_of_member_at_right |
| |
| \brief Metafunction to test if a user tag is refering to the left member. |
| |
| \code |
| |
| template< class Tag, class Relation > |
| struct is_tag_of_member_at_right : {true_|false_} {}; |
| |
| \endcode |
| |
| This metafunction is somewhat redundat with member_with_tag, but it is included |
| because it is a lot easier to metaprogram with it. The result type is the |
| same that: |
| |
| \code |
| |
| is_same< member_with_tag<Tag,Relation>::type , member_at::right >::type |
| |
| \endcode |
| |
| See also member_with_tag, member_at, is_tag_of_member_at_left. |
| \ingroup relation_group |
| **/ |
| |
| |
| #ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
| |
| namespace boost { |
| namespace bimaps { |
| namespace relation { |
| namespace support { |
| |
| // Metafunction is_tag_of_member_at_left |
| // Easiear metaprogramming |
| |
| template |
| < |
| class Tag, |
| class Relation, |
| class Enable = void |
| > |
| struct is_tag_of_member_at_left : |
| ::boost::mpl::false_ {}; |
| |
| template< class Tag, class Relation > |
| struct is_tag_of_member_at_left |
| < |
| Tag, Relation, |
| BOOST_DEDUCED_TYPENAME enable_if |
| < |
| is_same |
| < |
| BOOST_DEDUCED_TYPENAME member_with_tag<Tag,Relation>::type, |
| member_at::left |
| > |
| |
| >::type |
| > : |
| ::boost::mpl::true_ {}; |
| |
| // Metafunction is_tag_of_member_at_right |
| // Easiear metaprogramming |
| |
| template |
| < |
| class Tag, |
| class Relation, |
| class Enable = void |
| > |
| struct is_tag_of_member_at_right : |
| ::boost::mpl::false_ {}; |
| |
| template< class Tag, class Relation > |
| struct is_tag_of_member_at_right |
| < |
| Tag, Relation, |
| BOOST_DEDUCED_TYPENAME enable_if |
| < |
| is_same |
| < |
| BOOST_DEDUCED_TYPENAME member_with_tag<Tag,Relation>::type, |
| member_at::right |
| > |
| |
| >::type |
| > : |
| ::boost::mpl::true_ {}; |
| |
| |
| // Metafunction is_tag_of_member_at_info |
| // Easiear metaprogramming |
| |
| template |
| < |
| class Tag, |
| class Relation, |
| class Enable = void |
| > |
| struct is_tag_of_member_at_info : |
| ::boost::mpl::false_ {}; |
| |
| template< class Tag, class Relation > |
| struct is_tag_of_member_at_info |
| < |
| Tag, Relation, |
| BOOST_DEDUCED_TYPENAME enable_if |
| < |
| is_same |
| < |
| BOOST_DEDUCED_TYPENAME member_with_tag<Tag,Relation>::type, |
| member_at::info |
| > |
| |
| >::type |
| > : |
| ::boost::mpl::true_ {}; |
| |
| } // namespace support |
| } // namespace relation |
| } // namespace bimaps |
| } // namespace boost |
| |
| #endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
| |
| #endif // BOOST_BIMAP_RELATION_SUPPORT_IS_TAG_OF_MEMBER_AT_HPP |
| |
| |