//===----------------------------------------------------------------------===//
//
// 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>
// class mutex;
// mutex(const mutex&) = delete;
#include <mutex>
int main()
{
std::mutex m0;
std::mutex m1(m0);
}