projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | |
| 2 | // (C) Copyright Edward Diener 2011-2015 | |
| 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 | #include <boost/vmd/is_empty.hpp> | |
| 8 | #include <boost/preprocessor/facilities/empty.hpp> | |
| 9 | #include <boost/detail/lightweight_test.hpp> | |
| 10 | ||
| 11 | int main() | |
| 12 | { | |
| 13 | ||
| 14 | #if BOOST_PP_VARIADICS | |
| 15 | ||
| 16 | #define DATA | |
| 17 | #define OBJECT OBJECT2 | |
| 18 | #define OBJECT2 | |
| 19 | #define FUNC(x) FUNC2(x) | |
| 20 | #define FUNC2(x) | |
| 21 | ||
| 22 | BOOST_TEST(BOOST_VMD_IS_EMPTY(BOOST_PP_EMPTY())); | |
| 23 | BOOST_TEST(BOOST_VMD_IS_EMPTY(DATA BOOST_PP_EMPTY())); | |
| 24 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(x BOOST_PP_EMPTY())); | |
| 25 | BOOST_TEST(BOOST_VMD_IS_EMPTY(OBJECT BOOST_PP_EMPTY())); | |
| 26 | BOOST_TEST(BOOST_VMD_IS_EMPTY(FUNC(z) BOOST_PP_EMPTY())); | |
| 27 | ||
| 28 | #define FUNC_GEN() () | |
| 29 | #define FUNC_GEN2(x) () | |
| 30 | #define FUNC_GEN3() anything | |
| 31 | #define FUNC_GEN4(x) anything | |
| 32 | ||
| 33 | #if BOOST_VMD_MSVC | |
| 34 | ||
| 35 | #define FUNC_GEN5(x,y) () | |
| 36 | #define FUNC_GEN6(x,y) anything | |
| 37 | ||
| 38 | /* This shows that VC++ does not work correctly in these cases. */ | |
| 39 | ||
| 40 | BOOST_TEST(BOOST_VMD_IS_EMPTY(FUNC_GEN)); /* This produces the wrong result */ | |
| 41 | BOOST_TEST(BOOST_VMD_IS_EMPTY(FUNC_GEN2)); /* This produces the wrong result */ | |
| 42 | ||
| 43 | BOOST_TEST(BOOST_VMD_IS_EMPTY(FUNC_GEN5)); /* This should produce a compiler error but does not and produces the incorrect result */ | |
| 44 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN6)); /* This should produce a compiler error but does not */ | |
| 45 | ||
| 46 | #else | |
| 47 | ||
| 48 | #define FUNC_GEN5() (&) | |
| 49 | #define FUNC_GEN6(x) (y) | |
| 50 | #define FUNC_GEN7() (y,z) | |
| 51 | ||
| 52 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN)); | |
| 53 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN2)); | |
| 54 | ||
| 55 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN5)); | |
| 56 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN6)); | |
| 57 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN7)); | |
| 58 | ||
| 59 | #endif /* BOOST_VMD_MSVC */ | |
| 60 | ||
| 61 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN3)); | |
| 62 | BOOST_TEST(!BOOST_VMD_IS_EMPTY(FUNC_GEN4)); | |
| 63 | ||
| 64 | #else | |
| 65 | ||
| 66 | BOOST_ERROR("No variadic macro support"); | |
| 67 | ||
| 68 | #endif /* BOOST_PP_VARIADICS */ | |
| 69 | ||
| 70 | return boost::report_errors(); | |
| 71 | ||
| 72 | } |