projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | # /* ************************************************************************** |
| 2 | # * * | |
| 92f5a8d4 | 3 | # * (C) Copyright Edward Diener 2014,2019. |
| 7c673cae FG |
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_FACILITIES_IS_EMPTY_VARIADIC_HPP | |
| 13 | # define BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_VARIADIC_HPP | |
| 14 | # | |
| 15 | # include <boost/preprocessor/config/config.hpp> | |
| 7c673cae FG |
16 | # include <boost/preprocessor/punctuation/is_begin_parens.hpp> |
| 17 | # include <boost/preprocessor/facilities/detail/is_empty.hpp> | |
| 18 | # | |
| 19 | #if BOOST_PP_VARIADICS_MSVC && _MSC_VER <= 1400 | |
| 20 | # | |
| 21 | #define BOOST_PP_IS_EMPTY(param) \ | |
| 22 | BOOST_PP_DETAIL_IS_EMPTY_IIF \ | |
| 23 | ( \ | |
| 24 | BOOST_PP_IS_BEGIN_PARENS \ | |
| 25 | ( \ | |
| 26 | param \ | |
| 27 | ) \ | |
| 28 | ) \ | |
| 29 | ( \ | |
| 30 | BOOST_PP_IS_EMPTY_ZERO, \ | |
| 31 | BOOST_PP_DETAIL_IS_EMPTY_PROCESS \ | |
| 32 | ) \ | |
| 33 | (param) \ | |
| 34 | /**/ | |
| 35 | #define BOOST_PP_IS_EMPTY_ZERO(param) 0 | |
| 36 | # else | |
| 92f5a8d4 TL |
37 | # if defined(__cplusplus) && __cplusplus > 201703L |
| 38 | # include <boost/preprocessor/variadic/has_opt.hpp> | |
| 7c673cae | 39 | #define BOOST_PP_IS_EMPTY(...) \ |
| 92f5a8d4 TL |
40 | BOOST_PP_DETAIL_IS_EMPTY_IIF \ |
| 41 | ( \ | |
| 42 | BOOST_PP_VARIADIC_HAS_OPT() \ | |
| 43 | ) \ | |
| 44 | ( \ | |
| 45 | BOOST_PP_IS_EMPTY_OPT, \ | |
| 46 | BOOST_PP_IS_EMPTY_NO_OPT \ | |
| 47 | ) \ | |
| 48 | (__VA_ARGS__) \ | |
| 49 | /**/ | |
| 50 | #define BOOST_PP_IS_EMPTY_FUNCTION2(...) \ | |
| 51 | __VA_OPT__(0,) 1 \ | |
| 52 | /**/ | |
| 53 | #define BOOST_PP_IS_EMPTY_FUNCTION(...) \ | |
| 54 | BOOST_PP_IS_EMPTY_FUNCTION2(__VA_ARGS__) \ | |
| 55 | /**/ | |
| 56 | #define BOOST_PP_IS_EMPTY_OPT(...) \ | |
| 57 | BOOST_PP_VARIADIC_HAS_OPT_ELEM0(BOOST_PP_IS_EMPTY_FUNCTION(__VA_ARGS__),) \ | |
| 58 | /**/ | |
| 59 | # else | |
| 60 | #define BOOST_PP_IS_EMPTY(...) \ | |
| 61 | BOOST_PP_IS_EMPTY_NO_OPT(__VA_ARGS__) \ | |
| 62 | /**/ | |
| 63 | # endif /* defined(__cplusplus) && __cplusplus > 201703L */ | |
| 64 | #define BOOST_PP_IS_EMPTY_NO_OPT(...) \ | |
| 7c673cae FG |
65 | BOOST_PP_DETAIL_IS_EMPTY_IIF \ |
| 66 | ( \ | |
| 67 | BOOST_PP_IS_BEGIN_PARENS \ | |
| 68 | ( \ | |
| 69 | __VA_ARGS__ \ | |
| 70 | ) \ | |
| 71 | ) \ | |
| 72 | ( \ | |
| 73 | BOOST_PP_IS_EMPTY_ZERO, \ | |
| 74 | BOOST_PP_DETAIL_IS_EMPTY_PROCESS \ | |
| 75 | ) \ | |
| 76 | (__VA_ARGS__) \ | |
| 77 | /**/ | |
| 78 | #define BOOST_PP_IS_EMPTY_ZERO(...) 0 | |
| 79 | # endif /* BOOST_PP_VARIADICS_MSVC && _MSC_VER <= 1400 */ | |
| 7c673cae | 80 | # endif /* BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_VARIADIC_HPP */ |