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