| |
| // (C) Copyright Edward Diener 2011,2012,2013 |
| // Use, modification and distribution are subject to the Boost Software License, |
| // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt). |
| |
| #if !defined(BOOST_TTI_DETAIL_VM_TEMPLATE_PARAMS_HPP) |
| #define BOOST_TTI_DETAIL_VM_TEMPLATE_PARAMS_HPP |
| |
| #include <boost/config.hpp> |
| #include <boost/preprocessor/config/config.hpp> |
| |
| #if BOOST_PP_VARIADICS |
| |
| #include <boost/mpl/eval_if.hpp> |
| #include <boost/mpl/has_xxx.hpp> |
| #include <boost/mpl/identity.hpp> |
| #include <boost/preprocessor/arithmetic/add.hpp> |
| #include <boost/preprocessor/variadic/size.hpp> |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/preprocessor/comparison/equal.hpp> |
| #include <boost/preprocessor/control/iif.hpp> |
| #include <boost/preprocessor/detail/is_binary.hpp> |
| #include <boost/preprocessor/facilities/is_empty.hpp> |
| #include <boost/preprocessor/seq/enum.hpp> |
| #include <boost/preprocessor/seq/seq.hpp> |
| #include <boost/preprocessor/variadic/elem.hpp> |
| #include <boost/preprocessor/variadic/to_seq.hpp> |
| #include <boost/tti/detail/dtemplate.hpp> |
| #include <boost/tti/detail/dtemplate_params.hpp> |
| #include <boost/tti/detail/denclosing_type.hpp> |
| #include <boost/tti/gen/namespace_gen.hpp> |
| |
| #if !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) |
| #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1400) |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \ |
| BOOST_TTI_DETAIL_HAS_MEMBER_WITH_FUNCTION_SFINAE \ |
| ( \ |
| ( BOOST_PP_ADD(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__),4), ( trait, name, 1, false, __VA_ARGS__ ) ) \ |
| ) \ |
| /**/ |
| |
| #else // !!BOOST_WORKAROUND(BOOST_MSVC, <= 1400) |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \ |
| BOOST_TTI_DETAIL_HAS_MEMBER_WITH_TEMPLATE_SFINAE \ |
| ( \ |
| ( BOOST_PP_ADD(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__),4), ( trait, name, 1, false, __VA_ARGS__ ) ) \ |
| ) \ |
| /**/ |
| |
| #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1400) |
| #else // defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \ |
| BOOST_TTI_DETAIL_SAME(trait,name) \ |
| /**/ |
| |
| #endif // !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) |
| |
| #define BOOST_TTI_DETAIL_VM_CHECK_MORE_THAN_TWO(trait,...) \ |
| BOOST_PP_IIF \ |
| ( \ |
| BOOST_PP_EQUAL \ |
| ( \ |
| BOOST_PP_VARIADIC_SIZE(__VA_ARGS__), \ |
| 2 \ |
| ), \ |
| BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_FROM_TWO, \ |
| BOOST_TTI_DETAIL_VM_TRAIT_EXPAND_ARGUMENTS \ |
| ) \ |
| (trait,__VA_ARGS__) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_FROM_TWO(trait,...) \ |
| BOOST_PP_IIF \ |
| ( \ |
| BOOST_PP_IS_BINARY \ |
| ( \ |
| BOOST_PP_VARIADIC_ELEM(1,__VA_ARGS__) \ |
| ), \ |
| BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS, \ |
| BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_IF_NIL \ |
| ) \ |
| ( \ |
| trait, \ |
| BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__), \ |
| BOOST_PP_VARIADIC_ELEM(1,__VA_ARGS__) \ |
| ) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_IS_NIL(param) \ |
| BOOST_PP_IS_EMPTY \ |
| ( \ |
| BOOST_PP_CAT(BOOST_TTI_DETAIL_IS_HELPER_,param) \ |
| ) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_IF_NIL(trait,name,param) \ |
| BOOST_PP_IIF \ |
| ( \ |
| BOOST_TTI_DETAIL_VM_IS_NIL(param), \ |
| BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE, \ |
| BOOST_TTI_DETAIL_VM_CALL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS \ |
| ) \ |
| (trait,name,param) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_VARIADIC_TAIL(...) \ |
| BOOST_PP_SEQ_ENUM \ |
| ( \ |
| BOOST_PP_SEQ_TAIL \ |
| ( \ |
| BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__) \ |
| ) \ |
| ) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_EXPAND_ARGUMENTS(trait,...) \ |
| BOOST_TTI_DETAIL_VM_CALL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS \ |
| ( \ |
| trait, \ |
| BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__), \ |
| BOOST_TTI_DETAIL_VM_VARIADIC_TAIL(__VA_ARGS__) \ |
| ) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE(trait,...) \ |
| BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE \ |
| ( \ |
| trait, \ |
| BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__), \ |
| BOOST_PP_NIL \ |
| ) \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_CT_INVOKE(trait,name,...) \ |
| BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(BOOST_PP_CAT(trait,_detail),name,__VA_ARGS__) \ |
| template<class BOOST_TTI_DETAIL_TP_T> \ |
| struct BOOST_PP_CAT(trait,_detail_vm_ct_invoke) : \ |
| BOOST_PP_CAT(trait,_detail)<BOOST_TTI_DETAIL_TP_T> \ |
| { \ |
| }; \ |
| /**/ |
| |
| #define BOOST_TTI_DETAIL_VM_CALL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \ |
| BOOST_TTI_DETAIL_VM_CT_INVOKE(trait,name,__VA_ARGS__) \ |
| template<class BOOST_TTI_DETAIL_TP_T> \ |
| struct trait \ |
| { \ |
| typedef typename \ |
| boost::mpl::eval_if \ |
| < \ |
| BOOST_TTI_NAMESPACE::detail::enclosing_type<BOOST_TTI_DETAIL_TP_T>, \ |
| BOOST_PP_CAT(trait,_detail_vm_ct_invoke)<BOOST_TTI_DETAIL_TP_T>, \ |
| boost::mpl::false_ \ |
| >::type type; \ |
| BOOST_STATIC_CONSTANT(bool,value=type::value); \ |
| }; \ |
| /**/ |
| |
| #endif // BOOST_PP_VARIADICS |
| |
| #endif // BOOST_TTI_DETAIL_VM_TEMPLATE_PARAMS_HPP |