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49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads, c++98, c++03
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// <mutex>
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// template <class Mutex> class unique_lock;
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// unique_lock& operator=(unique_lock&& u);
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#include <mutex>
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#include <cassert>
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#include "nasty_containers.hpp"
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int main()
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{
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{
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typedef std::mutex M;
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M m0;
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M m1;
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std::unique_lock<M> lk0(m0);
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std::unique_lock<M> lk1(m1);
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lk1 = std::move(lk0);
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assert(lk1.mutex() == std::addressof(m0));
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assert(lk1.owns_lock() == true);
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assert(lk0.mutex() == nullptr);
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assert(lk0.owns_lock() == false);
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}
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{
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typedef nasty_mutex M;
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M m0;
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M m1;
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std::unique_lock<M> lk0(m0);
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std::unique_lock<M> lk1(m1);
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lk1 = std::move(lk0);
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assert(lk1.mutex() == std::addressof(m0));
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assert(lk1.owns_lock() == true);
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assert(lk0.mutex() == nullptr);
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assert(lk0.owns_lock() == false);
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}
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}
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