https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51437
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |redi at gcc dot gnu.org
--- Comment #17 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(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.
Clang does this now, with -Wreserved-identifier (N.B. singular, not
"identifiers")
> Also, the rules for C prohibit a leading underscore followed by a capital
> letter, or two adjacent underscores *anywhere* in the identifier. So, for
> example, this__identifier, or_this_identifier__.
No, that's only in C++. C allows two adjacent underscores anywhere except the
start. C++ does not.