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//===----------------------------------------------------------------------===//
//
// 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;
// scoped_lock& operator=(scoped_lock const&) = delete;
#include <mutex>
#include "test_macros.h"
int main()
{
using M = std::mutex;
M m0, m1, m2;
M om0, om1, om2;
{
using LG = std::scoped_lock<>;
LG lg1, lg2;
lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
}
{
using LG = std::scoped_lock<M>;
LG lg1(m0);
LG lg2(om0);
lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
}
{
using LG = std::scoped_lock<M, M>;
LG lg1(m0, m1);
LG lg2(om0, om1);
lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
}
{
using LG = std::scoped_lock<M, M, M>;
LG lg1(m0, m1, m2);
LG lg2(om0, om1, om2);
lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}}
}
}
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