| 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: c++03, c++11, c++14, c++17, c++20 |
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| 10 | |
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| 11 | // Make sure we can use `std::unreachable()`. We can't actually execute it cause that would be |
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| 12 | // UB, but we can make sure that it doesn't cause a linker error or something like that. |
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| 13 | |
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| 14 | #include <cassert> |
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| 15 | #include <type_traits> |
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| 16 | #include <utility> |
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| 17 | |
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| 18 | int main(int argc, char**) { |
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| 19 | assert(argc == 1); |
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| 20 | if (argc != 1) { |
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| 21 | std::unreachable(); |
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| 22 | } |
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| 23 | |
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| 24 | static_assert(std::is_same_v<decltype(std::unreachable()), void>); |
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| 25 | |
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| 26 | return 0; |
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| 27 | } |
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| 28 | |
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