https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103939
Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |egallager at gcc dot gnu.org
--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #1)
> The docs explain why GCC's -Wmemset-transposed-args doesn't warn:
>
> Warn for suspicious calls to the "memset" built-in function where the
> second
> argument is not zero and the third argument is zero. For example, the call
> "memset (buf, sizeof buf, 0)" is diagnosed because "memset (buf, 0, sizeof
> buf)" was meant instead. The diagnostic is only emitted if the third
> argument
> is a literal zero.
>
> So not warning for your case is by design.
>
> But it probably makes sense to warn if the second argument is a sizeof
> expression, whatever the value of the third argument.
What if both the second and third arguments are 'sizeof' expressions?
