| 1 | |
|---|---|
| 2 | #ifndef BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED |
| 3 | #define BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED |
| 4 | |
| 5 | // Copyright Aleksey Gurtovoy 2003-2004 |
| 6 | // Copyright David Abrahams 2003-2004 |
| 7 | // |
| 8 | // Distributed under the Boost Software License, Version 1.0. |
| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
| 11 | // |
| 12 | // See http://www.boost.org/libs/mpl for documentation. |
| 13 | |
| 14 | // $Id$ |
| 15 | // $Date$ |
| 16 | // $Revision$ |
| 17 | |
| 18 | #include <boost/mpl/set/aux_/tag.hpp> |
| 19 | #include <boost/mpl/has_key_fwd.hpp> |
| 20 | #include <boost/mpl/bool.hpp> |
| 21 | #include <boost/mpl/aux_/overload_names.hpp> |
| 22 | #include <boost/mpl/aux_/static_cast.hpp> |
| 23 | #include <boost/mpl/aux_/yes_no.hpp> |
| 24 | #include <boost/mpl/aux_/type_wrapper.hpp> |
| 25 | #include <boost/mpl/aux_/config/workaround.hpp> |
| 26 | #include <boost/mpl/aux_/config/static_constant.hpp> |
| 27 | |
| 28 | namespace boost { namespace mpl { |
| 29 | |
| 30 | template<> |
| 31 | struct has_key_impl< aux::set_tag > |
| 32 | { |
| 33 | template< typename Set, typename T > struct apply |
| 34 | #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \ |
| 35 | || BOOST_WORKAROUND(__EDG_VERSION__, <= 245) |
| 36 | { |
| 37 | BOOST_STATIC_CONSTANT(bool, value = |
| 38 | ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED( |
| 39 | Set |
| 40 | , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0) |
| 41 | ) ) == sizeof(aux::no_tag) ) |
| 42 | ); |
| 43 | |
| 44 | typedef bool_<value> type; |
| 45 | |
| 46 | #else // ISO98 C++ |
| 47 | : bool_< |
| 48 | ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED( |
| 49 | Set |
| 50 | , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0) |
| 51 | ) ) == sizeof(aux::no_tag) ) |
| 52 | > |
| 53 | { |
| 54 | #endif |
| 55 | }; |
| 56 | }; |
| 57 | |
| 58 | }} |
| 59 | |
| 60 | #endif // BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED |
| 61 |