On Fri, Aug 17, 2012 at 03:26:34PM +0200, Florian Weimer wrote:
> On 08/17/2012 03:09 PM, Jakub Jelinek wrote:
>
> >s/stpncopy/stpncpy/, yeah, I guess, we could do that for those too,
> >but 1) I'd prefer to wait for the C++ FE change to go in first
> >2) {,v}snprintf would be much harder than the rest, as the size
> >argument then isn't the last argument to the function, and the FEs
> >only provide the last one right now.
>
> Could you pick the second argument for varargs functions?
> Incredibly hacky, but would do the trick for those two. Or does the
> FE not know at this point it is processing a varargs function?
Yeah, it doesn't know that.
What could perhaps work for all the builtins that makes sense to warn for is
to record the third argument if it is a sizeof, or, if that one isn't a
sizeof, record the second argument if it is a sizeof.
Jakub
