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
main(int,char **)22 int 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