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_code
12 
13 // template <ErrorCodeEnum E> error_code& operator=(E e);
14 
15 #include <system_error>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 
20 enum testing
21 {
22     zero, one, two
23 };
24 
25 namespace std
26 {
27 
28 template <> struct is_error_code_enum<testing> : public std::true_type {};
29 
30 }
31 
32 std::error_code
make_error_code(testing x)33 make_error_code(testing x)
34 {
35     return std::error_code(static_cast<int>(x), std::generic_category());
36 }
37 
main(int,char **)38 int main(int, char**)
39 {
40     {
41         std::error_code ec;
42         ec = two;
43         assert(ec.value() == 2);
44         assert(ec.category() == std::generic_category());
45     }
46 
47   return 0;
48 }
49