You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
140 lines
3.3 KiB
140 lines
3.3 KiB
// 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 |
|
|
|
|