This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: sizeof array-typed function parameter: Warning possible?

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: Claus Fischer <claus dot fischer at clausfischer dot com>
Cc: Andrew Pinski <pinskia at physics dot uc dot edu>, gcc at gcc dot gnu dot org
Date: Wed, 13 Aug 2003 15:20:36 -0400
Subject: Re: sizeof array-typed function parameter: Warning possible?

It is already filed as bug 6940.

Thanks,
Andrew Pinski

On Wednesday, Aug 13, 2003, at 12:35 US/Eastern, Claus Fischer wrote:


I just tripped over this:
   void f(char x[100])
   {
       snprintf(x,sizeof(x),"foobar");
   }
I understand that section 6.7.5.3 #6 of my draft C standard
means the compiler is right, as usual :-)

I guess it's not possible to devise a very clever GCC compiler
warning that detects such nasty programmer errors?

Of course   sizeof(x)  could really be meant in the way that
the standard prescribes for interpreting it, so I see little
chance. It would be VERY nice though.

Regards,

Claus

--
Claus Fischer <claus.fischer@clausfischer.com>
http://www.clausfischer.com/

References:
- sizeof array-typed function parameter: Warning possible?
  - From: Claus Fischer

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]