dcomp_static_mem_fun.hpp 1.3 KB

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  1. // (C) Copyright Edward Diener 2011,2012,2013
  2. // Use, modification and distribution are subject to the Boost Software License,
  3. // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  4. // http://www.boost.org/LICENSE_1_0.txt).
  5. #if !defined(BOOST_TTI_DETAIL_COMP_STATIC_MEM_FUN_HPP)
  6. #define BOOST_TTI_DETAIL_COMP_STATIC_MEM_FUN_HPP
  7. #include <boost/config.hpp>
  8. #include <boost/function_types/is_function.hpp>
  9. #include <boost/mpl/bool.hpp>
  10. #include <boost/preprocessor/cat.hpp>
  11. #include <boost/type_traits/detail/yes_no_type.hpp>
  12. #include <boost/tti/detail/dnullptr.hpp>
  13. #define BOOST_TTI_DETAIL_TRAIT_HAS_COMP_STATIC_MEMBER_FUNCTION(trait,name) \
  14. template<class BOOST_TTI_DETAIL_TP_T,class BOOST_TTI_DETAIL_TP_TYPE> \
  15. struct BOOST_PP_CAT(trait,_detail) \
  16. { \
  17. template<BOOST_TTI_DETAIL_TP_TYPE *> \
  18. struct helper; \
  19. \
  20. template<class U> \
  21. static ::boost::type_traits::yes_type chkt(helper<&U::name> *); \
  22. \
  23. template<class U> \
  24. static ::boost::type_traits::no_type chkt(...); \
  25. \
  26. 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))); \
  27. \
  28. typedef boost::mpl::bool_<value> type; \
  29. }; \
  30. /**/
  31. #endif // BOOST_TTI_DETAIL_COMP_STATIC_MEM_FUN_HPP