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& operator=(shared_lock&& u); 15 16 #include <shared_mutex> 17 #include <cassert> 18 19 #if _LIBCPP_STD_VER > 11 20 21 std::shared_timed_mutex m0; 22 std::shared_timed_mutex m1; 23 24 #endif // _LIBCPP_STD_VER > 11 25 26 int main() 27 { 28 #if _LIBCPP_STD_VER > 11 29 std::shared_lock<std::shared_timed_mutex> lk0(m0); 30 std::shared_lock<std::shared_timed_mutex> lk1(m1); 31 lk1 = std::move(lk0); 32 assert(lk1.mutex() == &m0); 33 assert(lk1.owns_lock() == true); 34 assert(lk0.mutex() == nullptr); 35 assert(lk0.owns_lock() == false); 36 #endif // _LIBCPP_STD_VER > 11 37 } 38
