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// <shared_mutex> 11 12// template <class Mutex> class shared_lock; 13 14// shared_lock(shared_lock const&) = delete; 15 16#include <shared_mutex> 17 18#if _LIBCPP_STD_VER > 11 19std::shared_timed_mutex m; 20#endif // _LIBCPP_STD_VER > 11 21 22int main() 23{ 24#if _LIBCPP_STD_VER > 11 25 std::shared_lock<std::shared_timed_mutex> lk0(m); 26 std::shared_lock<std::shared_timed_mutex> lk = lk0; 27#else 28# error 29#endif // _LIBCPP_STD_VER > 11 30} 31