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(mutex_type& m, adopt_lock_t); 15 16 #include <shared_mutex> 17 #include <cassert> 18 19 int main() 20 { 21 #if _LIBCPP_STD_VER > 11 22 std::shared_timed_mutex m; 23 m.lock(); 24 std::shared_lock<std::shared_timed_mutex> lk(m, std::adopt_lock); 25 assert(lk.mutex() == &m); 26 assert(lk.owns_lock() == true); 27 #endif // _LIBCPP_STD_VER > 11 28 } 29
