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//===----------------------------------------------------------------------===//
9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant
10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <mutex>
11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant
12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct defer_lock_t {};
13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct try_to_lock_t {};
14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct adopt_lock_t {};
15f11ea144609929bb96a05f583ad7c29abd142730Howard Hinnant//
16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// constexpr defer_lock_t  defer_lock{};
17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// constexpr try_to_lock_t try_to_lock{};
18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// constexpr adopt_lock_t  adopt_lock{};
19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant
20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <mutex>
21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <type_traits>
22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant
23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main()
24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{
25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant    typedef std::defer_lock_t T1;
26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant    typedef std::try_to_lock_t T2;
27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant    typedef std::adopt_lock_t T3;
28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant
29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant    T1 t1 = std::defer_lock;
30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant    T2 t2 = std::try_to_lock;
31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant    T3 t3 = std::adopt_lock;
32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}
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