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Date: Wed, 20 Jun 2018 19:59:00 -0000
From: Marek Polacek <polacek@redhat.com>
To: Bruce Korb <bruce.korb@gmail.com>
Cc: GCC List <gcc@gcc.gnu.org>
Subject: Re: Next question: sizeof(char buf[2042])
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On Wed, Jun 20, 2018 at 11:47:45AM -0700, Bruce Korb wrote:
> Yeah, I guess this is Clang, but is it a legal interpretation for Clang?
> 
> In file included from gnu-pw-mgr.c:24:
> 
> In file included from ./fwd.h:288:
> 
> *./seed.c:178:43: **warning: **sizeof on pointer operation will return size
> of 'const char *' instead of 'const char [2042]'*
> 
> *      [-Wsizeof-array-decay]*
> 
>         char * tag = scribble_get(sizeof (tag_fmt) + strlen(OPT_ARG(TAG)));
> 
> *                                          ^~~~~~~*
> 
> 
> *It seems like a pretty brain damaged interpretation.*

We'd need to see the code but the warning seems legit.  What's the problem?

Marek