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SubjectRe: [PATCH] KEYS: trusted: fix -Wvarags warning
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On Fri, 2018-10-12 at 10:44 -0500, Denis Kenzior wrote:
> Hi James,
>
> > > So instead of having unsigned char h3, can't we simply have bool
> > > h3 or unsigned int h3?
> >
> > Given the ambiguity in the standards, the safe thing that will work
> > for all time and all potential compilers is a char *
> >
>
> All right. You state this with certainty, but I'd still like you to
> educate me why?
>
> From the links provided in the patch it seems that one cannot pass
> char/float/short to va_start(). Fair enough. So if we make h3 an
> unsigned int, the issue goes away, no?

For the current version of clang, yes. However, if we're fixing this
for good a char * pointer is the only guaranteed thing because it
mirrors current use in printf.

James

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