52 lines
1.4 KiB
C++
52 lines
1.4 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: no-threads
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// UNSUPPORTED: 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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// scoped_lock& operator=(scoped_lock const&) = delete;
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#include <mutex>
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#include "test_macros.h"
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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 om0, om1, om2;
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{
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using LG = std::scoped_lock<>;
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LG lg1, lg2;
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lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
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}
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{
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using LG = std::scoped_lock<M>;
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LG lg1(m0);
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LG lg2(om0);
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lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
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}
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{
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using LG = std::scoped_lock<M, M>;
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LG lg1(m0, m1);
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LG lg2(om0, om1);
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lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
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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 lg1(m0, m1, m2);
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LG lg2(om0, om1, om2);
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lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
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}
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return 0;
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}
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