| |
| #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. |
| |
| // $Id$ |
| // $Date$ |
| // $Revision$ |
| |
| #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 |
