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Howard Hinnant748a5272010-09-30 21:05:29 +00001//===----------------------------------------------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
Howard Hinnant412dbeb2010-11-16 22:09:02 +00005// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
Howard Hinnant748a5272010-09-30 21:05:29 +00007//
8//===----------------------------------------------------------------------===//
9
10// <atomic>
11
12// struct atomic_flag
13
14// atomic_flag() = ATOMIC_FLAG_INIT;
15
16#include <atomic>
17#include <cassert>
18
19int main()
20{
21 std::atomic_flag f = ATOMIC_FLAG_INIT;
22 assert(f.test_and_set() == 0);
23}