| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: libcpp-has-no-threads |
| |
| // This test ensures that we don't hijack the <stdatomic.h> header even when compiling |
| // before C++23, since Clang used to provide that header before libc++ provided one. |
| |
| // On GCC, the compiler-provided <stdatomic.h> is not C++ friendly, so including <stdatomic.h> |
| // doesn't work at all if we don't use the <stdatomic.h> provided by libc++ in C++23 and above. |
| // XFAIL: (c++11 || c++14 || c++17 || c++20) && gcc |
| |
| #include <stdatomic.h> |
| |
| void f() { |
| atomic_int i; // just make sure the header isn't empty |
| (void)i; |
| } |
