// 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/get.hpp | |
/// \brief get<tag>(r) function | |
#ifndef BOOST_BIMAP_RELATION_SUPPORT_GET_HPP | |
#define BOOST_BIMAP_RELATION_SUPPORT_GET_HPP | |
#if defined(_MSC_VER) && (_MSC_VER>=1200) | |
#pragma once | |
#endif | |
#include <boost/config.hpp> | |
#include <boost/bimap/relation/support/value_type_of.hpp> | |
#include <boost/bimap/relation/detail/access_builder.hpp> | |
#include <boost/mpl/if.hpp> | |
#include <boost/type_traits/is_same.hpp> | |
#include <boost/type_traits/is_const.hpp> | |
#ifdef BOOST_BIMAP_ONLY_DOXYGEN_WILL_PROCESS_THE_FOLLOWING_LINES | |
namespace boost { | |
namespace bimaps { | |
namespace relation { | |
namespace support { | |
/** \brief Gets a pair view of the relation. | |
\ingroup relation_group | |
**/ | |
template< class Tag, class SymmetricType > | |
BOOST_DEDUCED_TYPENAME result_of::get<Tag,SymmetricType>::type | |
get( SymmetricType & ); | |
} // namespace support | |
} // namespace relation | |
} // namespace bimaps | |
} // namespace boost | |
#endif // BOOST_BIMAP_ONLY_DOXYGEN_WILL_PROCESS_THE_FOLLOWING_LINES | |
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
namespace boost { | |
namespace bimaps { | |
namespace relation { | |
namespace support { | |
// Since it is very error-prone to directly write the hole bunch | |
// of relation accesor. They are buil from litle macro blocks that | |
// are both more readable, leading to self docummenting code and a | |
// lot more easier to understand and mantain. | |
// It is very important to note that the three building blocks have | |
// to laid in the same namespace in order to work. There is also | |
// important to keep them in order. | |
// The forward declaration are not necesary but they help a lot to | |
// the reader, as they undercover what is the signature of the | |
// result code. | |
// In the end, it is not quicker to do it in this way because you | |
// write a lot. But this code has no complexity at all and almost | |
// every word writed is for documentation. | |
// Result of | |
// ------------------------------------------------------------------------- | |
/* | |
namespace result_of { | |
template< class Tag, class Relation > | |
struct get<Tag,Relation>; | |
{ | |
typedef -unspecified- type; | |
}; | |
} // namespace result_of | |
*/ | |
BOOST_BIMAP_SYMMETRIC_ACCESS_RESULT_OF_BUILDER | |
( | |
get, | |
value_type_of | |
) | |
// Implementation | |
// ------------------------------------------------------------------------- | |
BOOST_BIMAP_SYMMETRIC_ACCESS_IMPLEMENTATION_BUILDER | |
( | |
get, | |
SymmetricType, | |
st, | |
return st.get_left(), | |
return st.get_right() | |
) | |
namespace detail { | |
template< class SymmetricType > | |
BOOST_DEDUCED_TYPENAME result_of::get< | |
::boost::bimaps::relation::member_at::info, SymmetricType >::type | |
get(::boost::bimaps::relation::member_at::info, SymmetricType & rel) | |
{ | |
return rel.info; | |
} | |
} // namespace detail | |
// Interface | |
//---------------------------------------------------------------------------- | |
BOOST_BIMAP_SYMMETRIC_ACCESS_INTERFACE_BUILDER | |
( | |
get | |
) | |
} // namespace support | |
} // namespace relation | |
} // namespace bimaps | |
} // namespace boost | |
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
#endif // BOOST_BIMAP_RELATION_SUPPORT_GET_HPP | |