37 lines
1.3 KiB
C++
37 lines
1.3 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_COMP_STATIC_MEM_FUN_HPP)
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#define BOOST_TTI_DETAIL_COMP_STATIC_MEM_FUN_HPP
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#include <boost/config.hpp>
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#include <boost/function_types/is_function.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/type_traits/detail/yes_no_type.hpp>
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#include <boost/tti/detail/dnullptr.hpp>
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#define BOOST_TTI_DETAIL_TRAIT_HAS_COMP_STATIC_MEMBER_FUNCTION(trait,name) \
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template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_TYPE> \
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struct BOOST_PP_CAT(trait,_detail) \
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{ \
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template<BOOST_TTI_DETAIL_TP_TYPE *> \
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struct helper; \
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\
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template<class U> \
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static ::boost::type_traits::yes_type chkt(helper<&U::name> *); \
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\
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template<class U> \
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static ::boost::type_traits::no_type chkt(...); \
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\
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BOOST_STATIC_CONSTANT(bool,value=(boost::function_types::is_function<BOOST_TTI_DETAIL_TP_TYPE>::value) && (sizeof(chkt<BOOST_TTI_DETAIL_TP_T>(BOOST_TTI_DETAIL_NULLPTR))==sizeof(::boost::type_traits::yes_type))); \
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\
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typedef boost::mpl::bool_<value> type; \
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}; \
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/**/
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#endif // BOOST_TTI_DETAIL_COMP_STATIC_MEM_FUN_HPP
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