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// <mutex> 11 12// struct defer_lock_t {}; 13// struct try_to_lock_t {}; 14// struct adopt_lock_t {}; 15// 16// constexpr defer_lock_t defer_lock{}; 17// constexpr try_to_lock_t try_to_lock{}; 18// constexpr adopt_lock_t adopt_lock{}; 19 20#include <mutex> 21#include <type_traits> 22 23int main() 24{ 25 typedef std::defer_lock_t T1; 26 typedef std::try_to_lock_t T2; 27 typedef std::adopt_lock_t T3; 28 29 T1 t1 = std::defer_lock; 30 T2 t2 = std::try_to_lock; 31 T3 t3 = std::adopt_lock; 32} 33