| |
| #ifndef BOOST_MPL_MAP_AUX_ERASE_KEY_IMPL_HPP_INCLUDED |
| #define BOOST_MPL_MAP_AUX_ERASE_KEY_IMPL_HPP_INCLUDED |
| |
| // Copyright Aleksey Gurtovoy 2003-2004 |
| // Copyright David Abrahams 2003-2004 |
| // |
| // 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) |
| // |
| // See http://www.boost.org/libs/mpl for documentation. |
| |
| // $Id: erase_key_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
| // $Revision: 49267 $ |
| |
| #include <boost/mpl/erase_key_fwd.hpp> |
| #include <boost/mpl/map/aux_/has_key_impl.hpp> |
| #include <boost/mpl/map/aux_/item.hpp> |
| #include <boost/mpl/map/aux_/tag.hpp> |
| #include <boost/mpl/identity.hpp> |
| #include <boost/mpl/base.hpp> |
| #include <boost/mpl/eval_if.hpp> |
| |
| #include <boost/type_traits/is_same.hpp> |
| |
| namespace boost { namespace mpl { |
| |
| template<> |
| struct erase_key_impl< aux::map_tag > |
| { |
| template< |
| typename Map |
| , typename Key |
| > |
| struct apply |
| : eval_if< |
| has_key_impl<aux::map_tag>::apply<Map,Key> |
| , eval_if< |
| is_same< Key,typename Map::key_ > |
| , base<Map> |
| , identity< m_mask<Key,Map> > |
| > |
| , identity<Map> |
| > |
| { |
| }; |
| }; |
| |
| }} |
| |
| #endif // BOOST_MPL_MAP_AUX_ERASE_KEY_IMPL_HPP_INCLUDED |