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//===----------------------------------------------------------------------===//
//
// 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() = default;
#include <atomic>
#include <new>
#include <cassert>
int main()
{
std::atomic_flag f;
{
typedef std::atomic_flag A;
_ALIGNAS_TYPE(A) char storage[sizeof(A)] = {1};
A& zero = *new (storage) A();
assert(!zero.test_and_set());
zero.~A();
}
}
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