//===----------------------------------------------------------------------===//
//
// 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: no-threads
// <mutex>
// class mutex;
// mutex& operator=(const mutex&) = delete;
#include <mutex>
#include <type_traits>
static_assert(!std::is_copy_assignable<std::mutex>::value, "");