| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // UNSUPPORTED: no-threads |
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| 10 | // UNSUPPORTED: c++03 |
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| 11 | |
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| 12 | // <mutex> |
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| 13 | |
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| 14 | // struct defer_lock_t { explicit defer_lock_t() = default; }; |
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| 15 | // struct try_to_lock_t { explicit try_to_lock_t() = default; }; |
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| 16 | // struct adopt_lock_t { explicit adopt_lock_t() = default; }; |
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| 17 | // |
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| 18 | // constexpr defer_lock_t defer_lock{}; |
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| 19 | // constexpr try_to_lock_t try_to_lock{}; |
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| 20 | // constexpr adopt_lock_t adopt_lock{}; |
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| 21 | |
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| 22 | #include <mutex> |
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| 23 | |
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| 24 | #include "test_macros.h" |
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| 25 | |
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| 26 | int main(int, char**) |
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| 27 | { |
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| 28 | typedef std::defer_lock_t T1; |
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| 29 | typedef std::try_to_lock_t T2; |
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| 30 | typedef std::adopt_lock_t T3; |
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| 31 | |
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| 32 | T1 t1 = std::defer_lock; ((void)t1); |
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| 33 | T2 t2 = std::try_to_lock; ((void)t2); |
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| 34 | T3 t3 = std::adopt_lock; ((void)t3); |
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| 35 | |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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