| // 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 support/map_by.hpp |
| /// \brief map_by<tag>(b) function |
| |
| #ifndef BOOST_BIMAP_SUPPORT_MAP_BY_HPP |
| #define BOOST_BIMAP_SUPPORT_MAP_BY_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER>=1200) |
| #pragma once |
| #endif |
| |
| #include <boost/config.hpp> |
| |
| #include <boost/bimap/support/map_type_by.hpp> |
| #include <boost/bimap/relation/detail/access_builder.hpp> |
| |
| |
| #ifdef BOOST_BIMAP_ONLY_DOXYGEN_WILL_PROCESS_THE_FOLLOWING_LINES |
| |
| namespace boost { |
| namespace bimaps { |
| namespace support { |
| |
| /** \brief Gets a map view of a bidirectional map |
| |
| Convertible to \c map_type_by<Tag,Bimap>::type |
| Instead of using \c map_type_by<Tag,Bimap>::type this functions use |
| \b Boost.call_traits to find the best way to return this value. To help |
| the user of this function the following metafunction is provided |
| \code |
| |
| namespace result_of { |
| |
| template< class Tag, class Bimap > |
| struct map_by( Bimap & b ); |
| |
| } // namespace result_of |
| |
| \endcode |
| |
| See also member_at, value_type_of. |
| \ingroup bimap_group |
| **/ |
| |
| template< class Tag, class Bimap > |
| BOOST_DEDUCED_TYPENAME result_of::map_by<Tag,Bimap>::type |
| map_by( Bimap & b ); |
| |
| } // namespace support |
| } // namespace bimaps |
| } // namespace boost |
| |
| #endif // BOOST_BIMAP_ONLY_DOXYGEN_WILL_PROCESS_THE_FOLLOWING_LINES |
| |
| |
| |
| #ifndef BOOST_BIMAP_DOXIGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
| |
| namespace boost { |
| namespace bimaps { |
| 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 Bimap > |
| struct map_by<Tag,Bimap>; |
| { |
| typedef -unspecified- type; |
| }; |
| |
| } // namespace result_of |
| |
| */ |
| |
| BOOST_BIMAP_SYMMETRIC_ACCESS_RESULT_OF_BUILDER |
| ( |
| map_by, |
| map_type_by |
| ) |
| |
| // Implementation |
| // ------------------------------------------------------------------------- |
| |
| BOOST_BIMAP_SYMMETRIC_ACCESS_IMPLEMENTATION_BUILDER |
| ( |
| map_by, |
| Bimap, |
| b, |
| return b.left, |
| return b.right |
| ) |
| |
| // Interface |
| // -------------------------------------------------------------------------- |
| |
| BOOST_BIMAP_SYMMETRIC_ACCESS_INTERFACE_BUILDER |
| ( |
| map_by |
| ) |
| |
| } // namespace support |
| } // namespace bimaps |
| } // namespace boost |
| |
| #endif // BOOST_BIMAP_DOXIGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES |
| |
| #endif // BOOST_BIMAP_SUPPORT_MAP_BY_HPP |
| |