Subject:	FREEing NULL pointers
To:	djgpp AT sun DOT soe DOT clarkson DOT edu (DJ's GPP mailing list)
Date:	Tue, 27 Oct 92 10:31:37 EST
From:	Stephen Turnbull <turnbull AT ecolan DOT sbs DOT ohio-state DOT edu>

> One problem I had (that I *don't* seem to have writting C for MS-DOS)
> is that the resulting program is very sensitive to where pointers are
> pointing.  If you try to free a NULL pointer, for instance, you will

I thought you were always mod ANSI allowed to free a NULL pointer, but
not an uninitialized or previously free'd one.
    Of course, I haven't programmed in straight C for a while; I
*know* you're always allowed to delete a NULL pointer.

> get the aforementioned segmentation violation.
> 
> You might look there.
> 
> Bob
> -- 
> Bob Hood    thor AT arrakis DOT denver DOT co DOT us     H: 303-980-8392  W: 303-632-2180
> ---------------------------------------------------------------------------
>     The person with the least expertise will have the most opinions...

    Of course, otherwise I'd never get to participate....
-- 
Stephen Turnbull
The Ohio State University, Department of Economics
410 Arps Hall, 1945 N. High St., Columbus, OH  43210-1172  USA
Phone: (614) 292-0654  Fax: ...-3906  Email: turnbull DOT 1 AT osu DOT edu

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