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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_MEM_TYPE_HPP) | |
8 | #define BOOST_TTI_DETAIL_MEM_TYPE_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/type_traits/is_class.hpp> | |
16 | ||
17 | #define BOOST_TTI_DETAIL_TRAIT_HAS_TYPE_MEMBER_TYPE_OP(trait,name) \ | |
18 | BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(BOOST_PP_CAT(trait,_detail_mpl), name, false) \ | |
19 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
20 | struct BOOST_PP_CAT(trait,_detail_op) : \ | |
21 | BOOST_PP_CAT(trait,_detail_mpl)<BOOST_TTI_DETAIL_TP_T> \ | |
22 | { \ | |
23 | }; \ | |
24 | /**/ | |
25 | ||
26 | #define BOOST_TTI_DETAIL_TRAIT_HAS_TYPE_MEMBER_TYPE(trait,name) \ | |
27 | BOOST_TTI_DETAIL_TRAIT_HAS_TYPE_MEMBER_TYPE_OP(trait,name) \ | |
28 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
29 | struct BOOST_PP_CAT(trait,_detail) \ | |
30 | { \ | |
31 | typedef typename \ | |
32 | boost::mpl::eval_if \ | |
33 | < \ | |
34 | boost::is_class<BOOST_TTI_DETAIL_TP_T>, \ | |
35 | BOOST_PP_CAT(trait,_detail_op)<BOOST_TTI_DETAIL_TP_T>, \ | |
36 | boost::mpl::false_ \ | |
37 | >::type type; \ | |
38 | \ | |
39 | BOOST_STATIC_CONSTANT(bool,value=type::value); \ | |
40 | }; \ | |
41 | /**/ | |
42 | ||
43 | #define BOOST_TTI_DETAIL_TRAIT_MEMBER_TYPE(trait,name) \ | |
44 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
45 | struct BOOST_PP_CAT(trait,_detail_member_type) \ | |
46 | { \ | |
47 | typedef typename BOOST_TTI_DETAIL_TP_T::name type; \ | |
48 | }; \ | |
49 | /**/ | |
50 | ||
51 | #endif // BOOST_TTI_DETAIL_MEM_TYPE_HPP |