54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
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// (C) Copyright Edward Diener 2011,2012,2013
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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#if !defined(BOOST_TTI_DETAIL_TYPE_HPP)
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#define BOOST_TTI_DETAIL_TYPE_HPP
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#include <boost/config.hpp>
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#include <boost/mpl/apply.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/mpl/has_xxx.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/tti/detail/ddeftype.hpp>
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#include <boost/tti/detail/dlambda.hpp>
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#include <boost/tti/gen/namespace_gen.hpp>
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#define BOOST_TTI_DETAIL_TRAIT_INVOKE_HAS_TYPE(trait,name) \
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template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_MFC> \
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struct BOOST_PP_CAT(trait,_detail_type_invoke) : \
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boost::mpl::apply<BOOST_TTI_DETAIL_TP_MFC,typename BOOST_TTI_DETAIL_TP_T::name> \
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{ \
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}; \
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/**/
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#define BOOST_TTI_DETAIL_TRAIT_HAS_TYPE(trait,name) \
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BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(BOOST_PP_CAT(trait,_detail_type_mpl), name, false) \
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BOOST_TTI_DETAIL_TRAIT_INVOKE_HAS_TYPE(trait,name) \
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template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_U,class BOOST_TTI_DETAIL_TP_B> \
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struct BOOST_PP_CAT(trait,_detail_type) \
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{ \
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BOOST_MPL_ASSERT((BOOST_TTI_NAMESPACE::detail::is_lambda_expression<BOOST_TTI_DETAIL_TP_U>)); \
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typedef typename BOOST_PP_CAT(trait,_detail_type_invoke)<BOOST_TTI_DETAIL_TP_T,BOOST_TTI_DETAIL_TP_U>::type type; \
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BOOST_STATIC_CONSTANT(bool,value=type::value); \
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}; \
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\
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template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_U> \
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struct BOOST_PP_CAT(trait,_detail_type)<BOOST_TTI_DETAIL_TP_T,BOOST_TTI_DETAIL_TP_U,boost::mpl::false_::type> \
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{ \
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typedef boost::mpl::false_::type type; \
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BOOST_STATIC_CONSTANT(bool,value=type::value); \
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}; \
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\
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template<class BOOST_TTI_DETAIL_TP_T> \
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struct BOOST_PP_CAT(trait,_detail_type)<BOOST_TTI_DETAIL_TP_T,BOOST_TTI_NAMESPACE::detail::deftype,boost::mpl::true_::type> \
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{ \
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typedef boost::mpl::true_::type type; \
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BOOST_STATIC_CONSTANT(bool,value=type::value); \
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}; \
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/**/
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#endif // BOOST_TTI_DETAIL_TYPE_HPP
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