1 | # /* ************************************************************************** |
2 | # * * |
3 | # * (C) Copyright Edward Diener 2014. |
4 | # * Distributed under the Boost Software License, Version 1.0. (See |
5 | # * accompanying file LICENSE_1_0.txt or copy at |
6 | # * http://www.boost.org/LICENSE_1_0.txt) |
7 | # * * |
8 | # ************************************************************************** */ |
9 | # |
10 | # /* See http://www.boost.org for most recent version. */ |
11 | # |
12 | #ifndef BOOST_PREPROCESSOR_DETAIL_IS_BEGIN_PARENS_HPP |
13 | #define BOOST_PREPROCESSOR_DETAIL_IS_BEGIN_PARENS_HPP |
14 | |
15 | #if BOOST_PP_VARIADICS_MSVC |
16 | |
17 | #include <boost/preprocessor/facilities/empty.hpp> |
18 | |
19 | #define BOOST_PP_DETAIL_VD_IBP_CAT(a, b) BOOST_PP_DETAIL_VD_IBP_CAT_I(a, b) |
20 | #define BOOST_PP_DETAIL_VD_IBP_CAT_I(a, b) BOOST_PP_DETAIL_VD_IBP_CAT_II(a ## b) |
21 | #define BOOST_PP_DETAIL_VD_IBP_CAT_II(res) res |
22 | |
23 | #define BOOST_PP_DETAIL_IBP_SPLIT(i, ...) \ |
24 | BOOST_PP_DETAIL_VD_IBP_CAT(BOOST_PP_DETAIL_IBP_PRIMITIVE_CAT(BOOST_PP_DETAIL_IBP_SPLIT_,i)(__VA_ARGS__),BOOST_PP_EMPTY()) \ |
25 | /**/ |
26 | |
27 | #define BOOST_PP_DETAIL_IBP_IS_VARIADIC_C(...) 1 1 |
28 | |
29 | #else |
30 | |
31 | #define BOOST_PP_DETAIL_IBP_SPLIT(i, ...) \ |
32 | BOOST_PP_DETAIL_IBP_PRIMITIVE_CAT(BOOST_PP_DETAIL_IBP_SPLIT_,i)(__VA_ARGS__) \ |
33 | /**/ |
34 | |
35 | #define BOOST_PP_DETAIL_IBP_IS_VARIADIC_C(...) 1 |
36 | |
37 | #endif /* BOOST_PP_VARIADICS_MSVC */ |
38 | |
39 | #define BOOST_PP_DETAIL_IBP_SPLIT_0(a, ...) a |
40 | #define BOOST_PP_DETAIL_IBP_SPLIT_1(a, ...) __VA_ARGS__ |
41 | |
42 | #define BOOST_PP_DETAIL_IBP_CAT(a, ...) BOOST_PP_DETAIL_IBP_PRIMITIVE_CAT(a,__VA_ARGS__) |
43 | #define BOOST_PP_DETAIL_IBP_PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__ |
44 | |
45 | #define BOOST_PP_DETAIL_IBP_IS_VARIADIC_R_1 1, |
46 | #define BOOST_PP_DETAIL_IBP_IS_VARIADIC_R_BOOST_PP_DETAIL_IBP_IS_VARIADIC_C 0, |
47 | |
48 | #endif /* BOOST_PREPROCESSOR_DETAIL_IS_BEGIN_PARENS_HPP */ |
49 | |