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From: "pavel.morozkin at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/51437] GCC should warn on the use of reserved
 identifier/macro names
Date: Fri, 23 Sep 2022 20:20:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D51437

--- Comment #18 from Pavel M <pavel.morozkin at gmail dot com> ---
(In reply to Jonathan Wakely from comment #17)
> (In reply to Josh Triplett from comment #5)
> > I'd like to see this as well.  While issuing such a warning by default =
would
> > cause numerous warnings with existing code, having it as an opt-in
> > -Wreserved-identifiers would help greatly.
>=20
> Clang does this now, with -Wreserved-identifier (N.B. singular, not
> "identifiers")
Note that in Clang -Wreserved-identifier is not part of -Wall nor -Wextra. =
The
reason is "chattiness of the diagnostic in practice". Full answer:
https://github.com/llvm/llvm-project/issues/57913#issuecomment-1255493025.=