blob: c90509d8fbb5ffc459c857cac49a672f59e9d3e3 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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
// atomic_flag() = ATOMIC_FLAG_INIT;
#include <atomic>
#include <cassert>
int main()
{
std::atomic_flag f = ATOMIC_FLAG_INIT;
assert(f.test_and_set() == 0);
}