#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 |