projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | |
| 2 | // (C) Copyright Edward Diener 2011,2012,2013 | |
| 3 | // Use, modification and distribution are subject to the Boost Software License, | |
| 4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| 5 | // http://www.boost.org/LICENSE_1_0.txt). | |
| 6 | ||
| 7 | #if !defined(BOOST_TTI_DETAIL_TEMPLATE_HPP) | |
| 8 | #define BOOST_TTI_DETAIL_TEMPLATE_HPP | |
| 9 | ||
| 10 | #include <boost/config.hpp> | |
| 11 | #include <boost/mpl/bool.hpp> | |
| 12 | #include <boost/mpl/eval_if.hpp> | |
| 13 | #include <boost/mpl/has_xxx.hpp> | |
| 14 | #include <boost/preprocessor/cat.hpp> | |
| 15 | #include <boost/preprocessor/debug/assert.hpp> | |
| 16 | #include <boost/preprocessor/facilities/is_empty.hpp> | |
| 17 | #include <boost/type_traits/is_class.hpp> | |
| 18 | ||
| 19 | #define BOOST_TTI_DETAIL_IS_HELPER_BOOST_PP_NIL | |
| 20 | ||
| 21 | #define BOOST_TTI_DETAIL_IS_NIL(param) \ | |
| 22 | BOOST_PP_IS_EMPTY \ | |
| 23 | ( \ | |
| 24 | BOOST_PP_CAT(BOOST_TTI_DETAIL_IS_HELPER_,param) \ | |
| 25 | ) \ | |
| 26 | /**/ | |
| 27 | ||
| 28 | #define BOOST_TTI_DETAIL_TRAIT_ASSERT_NOT_NIL(trait,name,params) \ | |
| 29 | BOOST_PP_ASSERT_MSG(0, "The parameter must be BOOST_PP_NIL") \ | |
| 30 | /**/ | |
| 31 | ||
| 32 | #define BOOST_TTI_DETAIL_TRAIT_CHECK_IS_NIL(trait,name,params) \ | |
| 33 | BOOST_PP_IIF \ | |
| 34 | ( \ | |
| 35 | BOOST_TTI_DETAIL_IS_NIL(params), \ | |
| 36 | BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE, \ | |
| 37 | BOOST_TTI_DETAIL_TRAIT_ASSERT_NOT_NIL \ | |
| 38 | ) \ | |
| 39 | (trait,name,params) \ | |
| 40 | /**/ | |
| 41 | ||
| 42 | #define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_THT(trait,name) \ | |
| 43 | BOOST_MPL_HAS_XXX_TEMPLATE_NAMED_DEF(BOOST_PP_CAT(trait,_detail_mpl), name, false) \ | |
| 44 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
| 45 | struct BOOST_PP_CAT(trait,_tht) : \ | |
| 46 | BOOST_PP_CAT(trait,_detail_mpl)<BOOST_TTI_DETAIL_TP_T> \ | |
| 47 | { \ | |
| 48 | }; \ | |
| 49 | /**/ | |
| 50 | ||
| 51 | #define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE(trait,name,params) \ | |
| 52 | BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_THT(trait,name) \ | |
| 53 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
| 54 | struct trait \ | |
| 55 | { \ | |
| 56 | typedef typename \ | |
| 57 | boost::mpl::eval_if \ | |
| 58 | < \ | |
| 59 | boost::is_class<BOOST_TTI_DETAIL_TP_T>, \ | |
| 60 | BOOST_PP_CAT(trait,_tht)<BOOST_TTI_DETAIL_TP_T>, \ | |
| 61 | boost::mpl::false_ \ | |
| 62 | >::type type; \ | |
| 63 | BOOST_STATIC_CONSTANT(bool,value=type::value); \ | |
| 64 | }; \ | |
| 65 | /**/ | |
| 66 | ||
| 67 | #endif // !BOOST_TTI_DETAIL_TEMPLATE_HPP |