1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// UNSUPPORTED: libcpp-has-no-threads 11 12// <mutex> 13 14// template <class Mutex> class unique_lock; 15 16// unique_lock(); 17 18#include <mutex> 19#include <cassert> 20 21int main() 22{ 23 std::unique_lock<std::mutex> ul; 24 assert(!ul.owns_lock()); 25 assert(ul.mutex() == nullptr); 26} 27