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 // <shared_mutex> 13 14 // template <class Mutex> class shared_lock; 15 16 // shared_lock& operator=(shared_lock&& u); 17 18 #include <shared_mutex> 19 #include <cassert> 20 21 #if _LIBCPP_STD_VER > 11 22 23 std::shared_timed_mutex m0; 24 std::shared_timed_mutex m1; 25 26 #endif // _LIBCPP_STD_VER > 11 27 28 int main() 29 { 30 #if _LIBCPP_STD_VER > 11 31 std::shared_lock<std::shared_timed_mutex> lk0(m0); 32 std::shared_lock<std::shared_timed_mutex> lk1(m1); 33 lk1 = std::move(lk0); 34 assert(lk1.mutex() == &m0); 35 assert(lk1.owns_lock() == true); 36 assert(lk0.mutex() == nullptr); 37 assert(lk0.owns_lock() == false); 38 #endif // _LIBCPP_STD_VER > 11 39 } 40
