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_category
13
14 // strong_ordering operator<=>(const error_category& rhs) const noexcept;
15
16 #include <system_error>
17 #include <cassert>
18
19 #include "test_macros.h"
20 #include "test_comparisons.h"
21
main(int,char **)22 int main(int, char**) {
23 AssertOrderAreNoexcept<std::error_category>();
24 AssertOrderReturn<std::strong_ordering, std::error_category>();
25
26 const std::error_category& e_cat1 = std::generic_category();
27 const std::error_category& e_cat2 = std::generic_category();
28 const std::error_category& e_cat3 = std::system_category();
29
30 assert(testOrder(e_cat1, e_cat2, std::strong_ordering::equal));
31
32 bool isLess = e_cat1 < e_cat3;
33 assert(testOrder(e_cat1, e_cat3, isLess ? std::strong_ordering::less : std::strong_ordering::greater));
34
35 return 0;
36 }
37