| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // void_t |
| |
| #include <type_traits> |
| |
| #include "test_macros.h" |
| |
| #if TEST_STD_VER <= 14 |
| # ifdef __cpp_lib_void_t |
| # error Feature test macro should not be defined! |
| # endif |
| #else |
| # ifndef __cpp_lib_void_t |
| # error Feature test macro is not defined |
| # endif |
| # if __cpp_lib_void_t != 201411 |
| # error Feature test macro has the wrong value |
| # endif |
| #endif |
| |
| int main() |
| { |
| #if defined(__cpp_lib_void_t) |
| static_assert(std::is_same_v<std::void_t<int>, void>, ""); |
| #endif |
| } |