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& operator=(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 #include "test_macros.h"
24 
25 namespace User {
26   enum Err {};
27 
28   std::error_condition make_error_condition(Err) { return std::error_condition(42, std::generic_category()); }
29 }
30 
31 template <>
32 struct std::is_error_condition_enum<User::Err> : true_type {};
33 
34 int main(int, char**) {
35   std::error_condition e;
36   e = User::Err();
37   assert(e.value() == 42);
38   assert(e.category() == std::generic_category());
39   return 0;
40 }
41