| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | // <system_error> |
| 10 | |
| 11 | // class error_condition |
| 12 | |
| 13 | // template <ErrorCodeEnum E> error_condition(E e); |
| 14 | |
| 15 | // Regression test for https://github.com/llvm/llvm-project/issues/57614 |
| 16 | |
| 17 | int make_error_condition; // It's important that this comes before <system_error> |
| 18 | |
| 19 | #include <system_error> |
| 20 | #include <cassert> |
| 21 | #include <type_traits> |
| 22 | |
| 23 | namespace User { |
| 24 | enum Err {}; |
| 25 | |
| 26 | std::error_condition make_error_condition(Err) { return std::error_condition(42, std::generic_category()); } |
| 27 | } |
| 28 | |
| 29 | namespace std { |
| 30 | template <> |
| 31 | struct is_error_condition_enum<User::Err> : true_type {}; |
| 32 | } |
| 33 | |
| 34 | int main(int, char**) { |
| 35 | std::error_condition e((User::Err())); |
| 36 | assert(e.value() == 42); |
| 37 | assert(e.category() == std::generic_category()); |
| 38 | |
| 39 | return 0; |
| 40 | } |
| 41 |