[857] | 1 |
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| 2 | #ifndef BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED
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| 3 | #define BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED
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| 4 |
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| 5 | // Copyright Aleksey Gurtovoy 2003-2004
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| 6 | // Copyright David Abrahams 2003-2004
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| 7 | //
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| 8 | // Distributed under the Boost Software License, Version 1.0.
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| 9 | // (See accompanying file LICENSE_1_0.txt or copy at
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| 10 | // http://www.boost.org/LICENSE_1_0.txt)
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| 11 | //
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| 12 | // See http://www.boost.org/libs/mpl for documentation.
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| 13 |
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| 14 | // $Source: /cvsroot/boost/boost/boost/mpl/set/aux_/has_key_impl.hpp,v $
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| 15 | // $Date: 2004/10/13 18:23:37 $
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| 16 | // $Revision: 1.7 $
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| 17 |
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| 18 | #include <boost/mpl/set/aux_/tag.hpp>
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| 19 | #include <boost/mpl/has_key_fwd.hpp>
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| 20 | #include <boost/mpl/bool.hpp>
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| 21 | #include <boost/mpl/aux_/overload_names.hpp>
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| 22 | #include <boost/mpl/aux_/static_cast.hpp>
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| 23 | #include <boost/mpl/aux_/yes_no.hpp>
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| 24 | #include <boost/mpl/aux_/type_wrapper.hpp>
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| 25 | #include <boost/mpl/aux_/config/workaround.hpp>
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| 26 | #include <boost/mpl/aux_/config/static_constant.hpp>
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| 27 |
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| 28 | namespace boost { namespace mpl {
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| 29 |
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| 30 | template<>
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| 31 | struct has_key_impl< aux::set_tag >
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| 32 | {
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| 33 | template< typename Set, typename T > struct apply
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| 34 | #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
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| 35 | || BOOST_WORKAROUND(__EDG_VERSION__, <= 245)
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| 36 | {
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| 37 | BOOST_STATIC_CONSTANT(bool, value =
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| 38 | ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED(
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| 39 | Set
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| 40 | , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0)
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| 41 | ) ) == sizeof(aux::no_tag) )
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| 42 | );
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| 43 |
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| 44 | typedef bool_<value> type;
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| 45 |
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| 46 | #else // ISO98 C++
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| 47 | : bool_<
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| 48 | ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED(
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| 49 | Set
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| 50 | , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0)
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| 51 | ) ) == sizeof(aux::no_tag) )
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| 52 | >
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| 53 | {
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| 54 | #endif
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| 55 | };
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| 56 | };
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| 57 |
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| 58 | }}
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| 59 |
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| 60 | #endif // BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED
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