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Everywhere: Remove redundant inequality comparison operators

C++20 can automatically synthesize `operator!=` from `operator==`, so
there is no point in writing such functions by hand if all they do is
call through to `operator==`.

This fixes a compile error with compilers that implement P2468 (Clang
16 currently). This paper restores the C++17 behavior that if both
`T::operator==(U)` and `T::operator!=(U)` exist, `U == T` won't be
rewritten in reverse to call `T::operator==(U)`. Removing `!=` operators
makes the rewriting possible again.
See https://reviews.llvm.org/D134529#3853062
This commit is contained in:
Daniel Bertalan 2022-10-21 15:53:20 +02:00 committed by Andrew Kaster
parent 4e406b0730
commit 4296425bd8
40 changed files with 1 additions and 180 deletions

View file

@ -31,12 +31,7 @@ public:
UUID(StringView, Endianness endianness = Endianness::Little);
~UUID() = default;
bool operator==(const UUID&) const;
bool operator!=(const UUID& other) const { return !(*this == other); }
bool operator<=(const UUID&) const = delete;
bool operator>=(const UUID&) const = delete;
bool operator<(const UUID&) const = delete;
bool operator>(const UUID&) const = delete;
bool operator==(const UUID&) const = default;
#ifdef KERNEL
ErrorOr<NonnullOwnPtr<Kernel::KString>> to_string() const;