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> 13 // class shared_lock 14 // { 15 // public: 16 // typedef Mutex mutex_type; 17 // ... 18 // }; 19 20 #include <shared_mutex> 21 #include <type_traits> 22 main()23int main() 24 { 25 #if _LIBCPP_STD_VER > 11 26 static_assert((std::is_same<std::shared_lock<std::mutex>::mutex_type, 27 std::mutex>::value), ""); 28 #endif // _LIBCPP_STD_VER > 11 29 } 30