| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // <mutex> |
| |
| // template <class Mutex> class lock_guard; |
| |
| // explicit lock_guard(mutex_type& m); |
| |
| #include <mutex> |
| |
| int main(int, char**) |
| { |
| std::mutex m; |
| std::lock_guard<std::mutex> lg = m; // expected-error{{no viable conversion}} |
| |
| return 0; |
| } |