1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <system_error>
11
12// class error_code
13
14// template <ErrorCodeEnum E> error_code& operator=(E e);
15
16#include <system_error>
17#include <cassert>
18
19enum testing
20{
21    zero, one, two
22};
23
24namespace std
25{
26
27template <> struct is_error_code_enum<testing> : public std::true_type {};
28
29}
30
31std::error_code
32make_error_code(testing x)
33{
34    return std::error_code(static_cast<int>(x), std::generic_category());
35}
36
37int main()
38{
39    {
40        std::error_code ec;
41        ec = two;
42        assert(ec.value() == 2);
43        assert(ec.category() == std::generic_category());
44    }
45}
46