Date: Wed, 9 Oct 2002 17:41:25 +0200 From: Cliff Sarginson <cls@raggedclown.net> To: freebsd-stable@freebsd.org Subject: Re: gcc2.95.4 pointer not defined Message-ID: <20021009154125.GB797@raggedclown.net> In-Reply-To: <20021009151803.GA14701@copper.eng.cstone.net> References: <20021009151803.GA14701@copper.eng.cstone.net>
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On Wed, Oct 09, 2002 at 11:18:03AM -0400, Joe Talbott wrote:
> With the following simple program on 4.6-STABLE from Mon Sep 9 11:27:32 EDT
> 2002 roughly (tried as well on 4.6-STABLE from Mon Jun 24 18:24:30 EDT 2002)
> both gcc 2.95.4 20020320. Both give SIGSEGV on line 9 (*ip = 50). gdb tells
> me:
>
> ip = (int *) 0x0
>
> Here's the source:
> /* pointer.c - pointer test */
>
> #include <stdio.h>
> #include <stdlib.h>
>
> int main (void) {
> int *ip;
>
> *ip = 50;
>
> printf ("%d\n", *ip);
>
> return (EXIT_SUCCESS);
> }
>
> I've tried this on a RedHat box and a SunOS box both worked as expected.
>
> Joe
Mmm..well they may have worked "as expected" but a SIGSEGV is what I
would expect. Where exactly is "ip" pointing to ? Maybe it needs some
space to point to !
And the Sunos C compiler is not a good reference point for acceptable
"C" ! You would be amazed at the things it lets by that are wrong.
--
Regards
Cliff Sarginson
The Netherlands
Email: cls@raggedclown.net
Tel : +31 (0)10 4764595
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