// 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 | |