forked from OSchip/llvm-project
38 lines
911 B
C++
38 lines
911 B
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
|
|
// <atomic>
|
|
|
|
// struct atomic_flag
|
|
|
|
// void atomic_flag_clear(volatile atomic_flag*);
|
|
// void atomic_flag_clear(atomic_flag*);
|
|
|
|
#include <atomic>
|
|
#include <cassert>
|
|
|
|
int main()
|
|
{
|
|
{
|
|
std::atomic_flag f;
|
|
f.clear();
|
|
f.test_and_set();
|
|
atomic_flag_clear(&f);
|
|
assert(f.test_and_set() == 0);
|
|
}
|
|
{
|
|
volatile std::atomic_flag f;
|
|
f.clear();
|
|
f.test_and_set();
|
|
atomic_flag_clear(&f);
|
|
assert(f.test_and_set() == 0);
|
|
}
|
|
}
|