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 // <mutex> 13 14 // struct defer_lock_t {}; 15 // struct try_to_lock_t {}; 16 // struct adopt_lock_t {}; 17 // 18 // constexpr defer_lock_t defer_lock{}; 19 // constexpr try_to_lock_t try_to_lock{}; 20 // constexpr adopt_lock_t adopt_lock{}; 21 22 #include <mutex> 23 #include <type_traits> 24 25 int main() 26 { 27 typedef std::defer_lock_t T1; 28 typedef std::try_to_lock_t T2; 29 typedef std::adopt_lock_t T3; 30 31 T1 t1 = std::defer_lock; 32 T2 t2 = std::try_to_lock; 33 T3 t3 = std::adopt_lock; 34 } 35
