| |
| #ifndef BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED |
| #define BOOST_MPL_SET_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/set/aux_/tag.hpp> |
| #include <boost/mpl/has_key_fwd.hpp> |
| #include <boost/mpl/bool.hpp> |
| #include <boost/mpl/aux_/overload_names.hpp> |
| #include <boost/mpl/aux_/static_cast.hpp> |
| #include <boost/mpl/aux_/yes_no.hpp> |
| #include <boost/mpl/aux_/type_wrapper.hpp> |
| #include <boost/mpl/aux_/config/workaround.hpp> |
| #include <boost/mpl/aux_/config/static_constant.hpp> |
| |
| namespace boost { namespace mpl { |
| |
| template<> |
| struct has_key_impl< aux::set_tag > |
| { |
| template< typename Set, typename T > struct apply |
| #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \ |
| || BOOST_WORKAROUND(__EDG_VERSION__, <= 245) |
| { |
| BOOST_STATIC_CONSTANT(bool, value = |
| ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED( |
| Set |
| , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0) |
| ) ) == sizeof(aux::no_tag) ) |
| ); |
| |
| typedef bool_<value> type; |
| |
| #else // ISO98 C++ |
| : bool_< |
| ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED( |
| Set |
| , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0) |
| ) ) == sizeof(aux::no_tag) ) |
| > |
| { |
| #endif |
| }; |
| }; |
| |
| }} |
| |
| #endif // BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED |