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Re: [bug-patch] "safe.c", line 264: error: zero or negative subscript


From: address@hidden
Subject: Re: [bug-patch] "safe.c", line 264: error: zero or negative subscript
Date: Sat, 3 Oct 2015 14:42:31 -0400 (EDT)


> On October 3, 2015 at 9:26 AM Andreas Gr├╝nbacher <address@hidden>
> wrote:
> 
> 
> Dennis,
> 
> 2015-10-03 2:46 GMT+02:00 address@hidden
> <address@hidden>:
> > There appears to be a trivial bug in src/safe.c wherein a zero size
> > array was defined and this is not in compliance with  ISO C99 update
> > WG14/N1256.  In section 6.7.8 Initialization of the standard there
> > does
> > not appear to be allowance for a zero size array such as buffer[0]
> > however we do see this in the GNU world thus :
> >
> > section : 6.17 Arrays of Length Zero
> > https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
> >
> > Therefore GCC compiler would most likely just silently accept this
> > unless I enforced compliance mode.
> 
> Indeed.
> 
> > A somewhat hackary fix is just to make buffer[] a size 1 array like
> > so :
> > [...] However that buffer[1] probably does not need to exist at all.
> 
> It isn't hard to get rid of that; let me push a fix.
> 
> Andreas



Thank you Sir ! 


Dennis



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