55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: libcpp-has-no-threads
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// <mutex>
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// template <class ...Mutex> class scoped_lock;
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// explicit scoped_lock(Mutex&...);
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#include <mutex>
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#include "test_macros.h"
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template <class LG>
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void test_conversion(LG) {}
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int main(int, char**)
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{
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using M = std::mutex;
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M m0, m1, m2;
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M n0, n1, n2;
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{
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using LG = std::scoped_lock<>;
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LG lg = {}; // expected-error{{chosen constructor is explicit in copy-initialization}}
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test_conversion<LG>({}); // expected-error{{no matching function for call}}
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((void)lg);
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}
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{
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using LG = std::scoped_lock<M>;
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LG lg = {m0}; // expected-error{{chosen constructor is explicit in copy-initialization}}
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test_conversion<LG>({n0}); // expected-error{{no matching function for call}}
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((void)lg);
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}
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{
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using LG = std::scoped_lock<M, M>;
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LG lg = {m0, m1}; // expected-error{{chosen constructor is explicit in copy-initialization}}
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test_conversion<LG>({n0, n1}); // expected-error{{no matching function for call}}
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((void)lg);
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}
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{
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using LG = std::scoped_lock<M, M, M>;
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LG lg = {m0, m1, m2}; // expected-error{{chosen constructor is explicit in copy-initialization}}
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test_conversion<LG>({n0, n1, n2}); // expected-error{{no matching function for call}}
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}
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return 0;
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}
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