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// UNSUPPORTED: c++03, c++11, c++14, c++17
9
10// <system_error>
11
12// class error_code
13
14// strong_ordering operator<=>(const error_code& lhs, const error_code& rhs) noexcept
15
16#include <system_error>
17#include <cassert>
18
19#include "test_macros.h"
20#include "test_comparisons.h"
21
22int main(int, char**) {
23 AssertOrderAreNoexcept<std::error_code>();
24 AssertOrderReturn<std::strong_ordering, std::error_code>();
25
26 // Same error category
27 std::error_code ec1a = std::error_code(1, std::generic_category());
28 std::error_code ec1b = std::error_code(1, std::generic_category());
29 std::error_code ec2 = std::error_code(2, std::generic_category());
30
31 assert(testOrder(ec1a, ec1b, std::strong_ordering::equal));
32 assert(testOrder(ec1a, ec2, std::strong_ordering::less));
33
34 // Different error category
35 const std::error_code& ec3 = std::error_code(2, std::system_category());
36
37 bool isLess = ec2 < ec3;
38 assert(testOrder(ec2, ec3, isLess ? std::strong_ordering::less : std::strong_ordering::greater));
39
40 return 0;
41}
42

source code of libcxx/test/std/diagnostics/syserr/syserr.compare/cmp_error_code.pass.cpp