| //===----------------------------------------------------------------------===// |
| // |
| // 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 lock_guard; |
| |
| // lock_guard& operator=(lock_guard const&) = delete; |
| |
| #include <mutex> |
| |
| int main() |
| { |
| std::mutex m0; |
| std::mutex m1; |
| std::lock_guard<std::mutex> lg0(m0); |
| std::lock_guard<std::mutex> lg(m1); |
| lg = lg0; |
| } |