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// template <class ...Mutex> class scoped_lock;
15
16// scoped_lock(scoped_lock const&) = delete;
17
18#include <mutex>
19#include "test_macros.h"
20
21int main(int, char**)
22{
23 using M = std::mutex;
24 M m0, m1, m2;
25 {
26 using LG = std::scoped_lock<>;
27 const LG Orig;
28 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
29 }
30 {
31 using LG = std::scoped_lock<M>;
32 const LG Orig(m0);
33 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
34 }
35 {
36 using LG = std::scoped_lock<M, M>;
37 const LG Orig(m0, m1);
38 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
39 }
40 {
41 using LG = std::scoped_lock<M, M, M>;
42 const LG Orig(m0, m1, m2);
43 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
44 }
45
46 return 0;
47}
48

source code of libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.scoped/copy.verify.cpp