Marc,

Someone correctly pointed out to the folowing to me: "Now you have
created yet another person who will fix his lack of understanding of
pointers with sprinkling malloc everywhere."

Since I feel responsible for this please read this pretty good tutorial
on pointers: http://pw1.netcom.com/~tjensen/ptr/pointers.htm

One last thing, ALLWAYS free a piece of memory that you used before. So
your code needs:
free(p);
at the end of the code.

/marco

PS: I won't reply to these anymore!

----- Original Message -----
From: "marco" <slasharbornet.org>
To: "Marc Xander Makkes" <xanderkr85.org>; <miscopenbsd.org>
Sent: Tuesday, February 05, 2002 7:43 PM
Subject: Re: Why the hell is my code coredumping ?

> Well, I am surprised it does not core dump on solaris.
>
> You might want to consider to assign the pointer or allocate some
memory
> for it.
>
> struct point pt;
> p = &pt;
>
> or
>
> p = malloc(sizeof(point));
>
> I bet it tries to assign #13 to $0.
>
> /marco
>
> ----- Original Message -----
> From: "Marc Xander Makkes" <xanderkr85.org>
> To: <miscopenbsd.org>
> Sent: Tuesday, February 05, 2002 6:48 PM
> Subject: Why the hell is my code coredumping ?
>
>
> > I have this little code;
> >
> > +----
> >
> >
> > #include <stdio.h>
> >
> > struct point { int x; int y;};
> > int main()
> > {
> > struct point *p;
> > p->y = 13;
> > printf("%d\n", p->y);
> > }
> >
> >
> > ----+
> >
> > it compiles and runs ok on solaris, and it compiles ok on openbsd
but
> > when i run it, it directly core dumpes. Is there something i forgot
to
> > read or is it the 13?:)
> >
> > The code is compiled on 2 differend OpenBSD 3.0 machines, one with
> GENERIC
> > and one modified, both i386.
> >
> >
> > any clues ?
> >
> > Kind regards,
> >
> >
> > MX

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