| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| |
| // <atomic> |
| |
| // struct atomic_flag |
| |
| // TESTING EXTENSION atomic_flag(bool) |
| |
| #include <atomic> |
| #include <cassert> |
| |
| int main() |
| { |
| { |
| std::atomic_flag f(false); |
| assert(f.test_and_set() == 0); |
| } |
| { |
| std::atomic_flag f(true); |
| assert(f.test_and_set() == 1); |
| } |
| } |
