1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: no-threads
10// UNSUPPORTED: c++03, c++11, c++14
11
12// <mutex>
13
14// scoped_lock
15
16// Make sure that the implicitly-generated CTAD works.
17
18#include <mutex>
19
20#include "test_macros.h"
21
22int main(int, char**) {
23 std::mutex m1;
24 std::recursive_mutex m2;
25 std::recursive_timed_mutex m3;
26 {
27 std::scoped_lock lock(m1);
28 ASSERT_SAME_TYPE(decltype(lock), std::scoped_lock<std::mutex>);
29 }
30 {
31 std::scoped_lock lock(m1, m2);
32 ASSERT_SAME_TYPE(decltype(lock), std::scoped_lock<std::mutex, std::recursive_mutex>);
33 }
34 {
35 std::scoped_lock lock(m1, m2, m3);
36 ASSERT_SAME_TYPE(decltype(lock), std::scoped_lock<std::mutex, std::recursive_mutex, std::recursive_timed_mutex>);
37 }
38
39 return 0;
40}
41
42

source code of libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.scoped/implicit_ctad.pass.cpp