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&& u); 15 16 #include <shared_mutex> 17 #include <cassert> 18 19 #if _LIBCPP_STD_VER > 11 20 std::shared_timed_mutex m; 21 #endif // _LIBCPP_STD_VER > 11 22 23 int main() 24 { 25 #if _LIBCPP_STD_VER > 11 26 std::shared_lock<std::shared_timed_mutex> lk0(m); 27 std::shared_lock<std::shared_timed_mutex> lk = std::move(lk0); 28 assert(lk.mutex() == &m); 29 assert(lk.owns_lock() == true); 30 assert(lk0.mutex() == nullptr); 31 assert(lk0.owns_lock() == false); 32 #endif // _LIBCPP_STD_VER > 11 33 } 34
