1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 98d86b2e6867297fb2109824c67c50de67f3a31f2Jonathan Roelofs// 108d86b2e6867297fb2109824c67c50de67f3a31f2Jonathan Roelofs// UNSUPPORTED: libcpp-has-no-threads 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <mutex> 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct defer_lock_t {}; 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct try_to_lock_t {}; 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct adopt_lock_t {}; 17f11ea144609929bb96a05f583ad7c29abd142730Howard Hinnant// 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// constexpr defer_lock_t defer_lock{}; 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// constexpr try_to_lock_t try_to_lock{}; 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// constexpr adopt_lock_t adopt_lock{}; 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <mutex> 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <type_traits> 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::defer_lock_t T1; 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::try_to_lock_t T2; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::adopt_lock_t T3; 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 310e5ebbc77c3c2cfd7d835fcfe40fcb65df0c5598Eric Fiselier T1 t1 = std::defer_lock; ((void)t1); 320e5ebbc77c3c2cfd7d835fcfe40fcb65df0c5598Eric Fiselier T2 t2 = std::try_to_lock; ((void)t2); 330e5ebbc77c3c2cfd7d835fcfe40fcb65df0c5598Eric Fiselier T3 t3 = std::adopt_lock; ((void)t3); 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 35