tti/detail/dstatic_mem_data.hpp

0001
0002 //  (C) Copyright Edward Diener 2011,2012,2013
0003 //  Use, modification and distribution are subject to the Boost Software License,
0004 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0005 //  http://www.boost.org/LICENSE_1_0.txt).
0006
0007 #if !defined(BOOST_TTI_DETAIL_STATIC_MEM_DATA_HPP)
0008 #define BOOST_TTI_DETAIL_STATIC_MEM_DATA_HPP
0009
0010 #include <boost/config.hpp>
0011 #include <boost/function_types/is_function.hpp>
0012 #include <boost/mpl/bool.hpp>
0013 #include <boost/mpl/eval_if.hpp>
0014 #include <boost/preprocessor/cat.hpp>
0015 #include <boost/type_traits/is_class.hpp>
0016 #include <boost/type_traits/detail/yes_no_type.hpp>
0017 #include <boost/tti/detail/denclosing_type.hpp>
0018 #include <boost/tti/detail/dmacro_sunfix.hpp>
0019 #include <boost/tti/detail/dnullptr.hpp>
0020 #include <boost/tti/gen/namespace_gen.hpp>
0021
0022 #if defined(BOOST_MSVC)
0023
0024 #define BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_DATA_OP(trait,name) \
0025   template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_TYPE> \
0026   struct BOOST_PP_CAT(trait,_detail_hsd_op) \
0027     { \
0028     template<bool,typename BOOST_TTI_DETAIL_TP_U> \
0029     struct menable_if; \
0030     \
0031     template<typename BOOST_TTI_DETAIL_TP_U> \
0032     struct menable_if<true,BOOST_TTI_DETAIL_TP_U> \
0033       { \
0034       typedef BOOST_TTI_DETAIL_TP_U type; \
0035       }; \
0036     \
0037     template<typename BOOST_TTI_DETAIL_TP_U,typename BOOST_TTI_DETAIL_TP_V> \
0038     static ::boost::type_traits::yes_type check2(BOOST_TTI_DETAIL_TP_V *); \
0039     \
0040     template<typename BOOST_TTI_DETAIL_TP_U,typename BOOST_TTI_DETAIL_TP_V> \
0041     static ::boost::type_traits::no_type check2(BOOST_TTI_DETAIL_TP_U); \
0042     \
0043     template<typename BOOST_TTI_DETAIL_TP_U,typename BOOST_TTI_DETAIL_TP_V> \
0044     static typename \
0045       menable_if \
0046         < \
0047         sizeof(check2<BOOST_TTI_DETAIL_TP_U,BOOST_TTI_DETAIL_TP_V>(&BOOST_TTI_DETAIL_TP_U::name))==sizeof(::boost::type_traits::yes_type), \
0048         ::boost::type_traits::yes_type \
0049         > \
0050       ::type \
0051     has_matching_member(int); \
0052     \
0053     template<typename BOOST_TTI_DETAIL_TP_U,typename BOOST_TTI_DETAIL_TP_V> \
0054     static ::boost::type_traits::no_type has_matching_member(...); \
0055     \
0056     template<class BOOST_TTI_DETAIL_TP_U,class BOOST_TTI_DETAIL_TP_V> \
0057     struct ttc_sd \
0058       { \
0059       typedef boost::mpl::bool_<sizeof(has_matching_member<BOOST_TTI_DETAIL_TP_V,BOOST_TTI_DETAIL_TP_U>(0))==sizeof(::boost::type_traits::yes_type)> type; \
0060       }; \
0061     \
0062     typedef typename ttc_sd<BOOST_TTI_DETAIL_TP_TYPE,BOOST_TTI_DETAIL_TP_T>::type type; \
0063     }; \
0064 /**/
0065
0066 #else
0067
0068 #define BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_DATA_OP(trait,name) \
0069   template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_TYPE> \
0070   struct BOOST_PP_CAT(trait,_detail_hsd_op) \
0071     { \
0072     template<BOOST_TTI_DETAIL_TP_TYPE *> \
0073     struct helper BOOST_TTI_DETAIL_MACRO_SUNFIX ; \
0074     \
0075     template<class BOOST_TTI_DETAIL_TP_U> \
0076     static ::boost::type_traits::yes_type chkt(helper<&BOOST_TTI_DETAIL_TP_U::name> *); \
0077     \
0078     template<class BOOST_TTI_DETAIL_TP_U> \
0079     static ::boost::type_traits::no_type chkt(...); \
0080     \
0081     typedef boost::mpl::bool_<(!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))> type; \
0082     }; \
0083 /**/
0084
0085 #endif // defined(BOOST_MSVC)
0086
0087 #if defined(BOOST_NO_CXX11_UNRESTRICTED_UNION)
0088
0089 #define BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_DATA(trait,name) \
0090   BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_DATA_OP(trait,name) \
0091   template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_TYPE> \
0092   struct BOOST_PP_CAT(trait,_detail_hsd) : \
0093     boost::mpl::eval_if \
0094         < \
0095         boost::is_class<BOOST_TTI_DETAIL_TP_T>, \
0096         BOOST_PP_CAT(trait,_detail_hsd_op)<BOOST_TTI_DETAIL_TP_T,BOOST_TTI_DETAIL_TP_TYPE>, \
0097         boost::mpl::false_ \
0098         > \
0099     { \
0100     }; \
0101 /**/
0102
0103 #else
0104
0105 #define BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_DATA(trait,name) \
0106   BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_DATA_OP(trait,name) \
0107   template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_TYPE> \
0108   struct BOOST_PP_CAT(trait,_detail_hsd) : \
0109     boost::mpl::eval_if \
0110         < \
0111         BOOST_TTI_NAMESPACE::detail::enclosing_type<BOOST_TTI_DETAIL_TP_T>, \
0112         BOOST_PP_CAT(trait,_detail_hsd_op)<BOOST_TTI_DETAIL_TP_T,BOOST_TTI_DETAIL_TP_TYPE>, \
0113         boost::mpl::false_ \
0114         > \
0115     { \
0116     }; \
0117 /**/
0118
0119 #endif
0120
0121 #endif // BOOST_TTI_DETAIL_STATIC_MEM_DATA_HPP