37 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8// UNSUPPORTED: c++03, c++11, c++14, c++179 10// <system_error>11 12// class error_category13 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 22int 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