| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // UNSUPPORTED: c++98, c++03, c++11, c++14 |
| |
| // <mutex> |
| |
| // template <class ...Mutex> class scoped_lock; |
| |
| // explicit scoped_lock(Mutex&...); |
| |
| #include <mutex> |
| #include "test_macros.h" |
| |
| template <class LG> |
| void test_conversion(LG) {} |
| |
| int main(int, char**) |
| { |
| using M = std::mutex; |
| M m0, m1, m2; |
| M n0, n1, n2; |
| { |
| using LG = std::scoped_lock<>; |
| LG lg = {}; // expected-error{{chosen constructor is explicit in copy-initialization}} |
| test_conversion<LG>({}); // expected-error{{no matching function for call}} |
| ((void)lg); |
| } |
| { |
| using LG = std::scoped_lock<M>; |
| LG lg = {m0}; // expected-error{{chosen constructor is explicit in copy-initialization}} |
| test_conversion<LG>({n0}); // expected-error{{no matching function for call}} |
| ((void)lg); |
| } |
| { |
| using LG = std::scoped_lock<M, M>; |
| LG lg = {m0, m1}; // expected-error{{chosen constructor is explicit in copy-initialization}} |
| test_conversion<LG>({n0, n1}); // expected-error{{no matching function for call}} |
| ((void)lg); |
| } |
| { |
| using LG = std::scoped_lock<M, M, M>; |
| LG lg = {m0, m1, m2}; // expected-error{{chosen constructor is explicit in copy-initialization}} |
| test_conversion<LG>({n0, n1, n2}); // expected-error{{no matching function for call}} |
| } |
| |
| return 0; |
| } |