| #ifndef BOOST_MPL_MAP_AUX_HAS_KEY_IMPL_HPP_INCLUDED | |
| #define BOOST_MPL_MAP_AUX_HAS_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: has_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/has_key_fwd.hpp> | |
| #include <boost/mpl/map/aux_/tag.hpp> | |
| #include <boost/mpl/map/aux_/at_impl.hpp> | |
| #include <boost/mpl/void.hpp> | |
| #include <boost/mpl/aux_/config/typeof.hpp> | |
| namespace boost { namespace mpl { | |
| template<> | |
| struct has_key_impl< aux::map_tag > | |
| { | |
| template< typename Map, typename Key > struct apply | |
| #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES) | |
| : is_not_void_< | |
| typename at_impl<aux::map_tag> | |
| ::apply<Map,Key>::type | |
| > | |
| #else | |
| : bool_< ( x_order_impl<Map,Key>::value > 1 ) > | |
| #endif | |
| { | |
| }; | |
| }; | |
| }} | |
| #endif // BOOST_MPL_MAP_AUX_HAS_KEY_IMPL_HPP_INCLUDED |