cxx/test/thread/thread.mutex/thread.lock/thread.lock.unique/thread.lock.unique.cons/copy_assign.fail.cpp
Howard Hinnant b64f8b07c1 license change
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16 22:09:02 +00:00

32 lines
797 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <mutex>
// template <class Mutex> class unique_lock;
// unique_lock& operator=(unique_lock const&) = delete;
#include <mutex>
#include <cassert>
std::mutex m0;
std::mutex m1;
int main()
{
std::unique_lock<std::mutex> lk0(m0);
std::unique_lock<std::mutex> lk1(m1);
lk1 = lk0;
assert(lk1.mutex() == &m0);
assert(lk1.owns_lock() == true);
assert(lk0.mutex() == nullptr);
assert(lk0.owns_lock() == false);
}