07adecfef4
Resolves #171364 - Implement [proposed resolution of LWG4370](https://wg21.link/LWG4370) - Add corresponding compile test
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// REQUIRES: std-at-least-c++17
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// <optional>
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// Verify that comparison operators of `optional` accept underlying return types convertible both from and to `bool`
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// as required by LWG4370.
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#include <optional>
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struct Bool {
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Bool(bool) {};
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operator bool() const { return true; };
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};
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struct S {
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Bool operator==(S) const { return true; }
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Bool operator!=(S) const { return true; }
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Bool operator<=(S) const { return true; }
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Bool operator<(S) const { return true; }
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Bool operator>(S) const { return true; }
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Bool operator>=(S) const { return true; }
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};
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void test() {
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std::optional<S> s{S{}};
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(void)(s == S{});
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(void)(s != S{});
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(void)(s < S{});
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(void)(s > S{});
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(void)(s <= S{});
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(void)(s >= S{});
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}
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