1//
2// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
3// See https://llvm.org/LICENSE.txt for license information.
4// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
5//
6//===----------------------------------------------------------------------===//
7
8// UNSUPPORTED: c++03, c++11, c++14, c++17
9// UNSUPPORTED: no-threads
10// XFAIL: availability-synchronization_library-missing
11// XFAIL: !has-64-bit-atomics
12// XFAIL: !has-1024-bit-atomics
13
14// void notify_one() const noexcept;
15
16#include <atomic>
17#include <cassert>
18#include <thread>
19#include <type_traits>
20#include <vector>
21
22#include "atomic_helpers.h"
23#include "make_test_thread.h"
24#include "test_macros.h"
25
26template <typename T>
27struct TestNotifyOne {
28 void operator()() const {
29 T x(T(1));
30 std::atomic_ref<T> const a(x);
31
32 std::thread t = support::make_test_thread([&]() {
33 a.store(T(3));
34 a.notify_one();
35 });
36 a.wait(T(1));
37 assert(a.load() == T(3));
38 t.join();
39 ASSERT_NOEXCEPT(a.notify_one());
40 }
41};
42
43int main(int, char**) {
44 TestEachAtomicType<TestNotifyOne>()();
45 return 0;
46}
47

source code of libcxx/test/std/atomics/atomics.ref/notify_one.pass.cpp