Marc Xander Makkes <xanderkr85.org> writes:

> 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 ?

There is a great book written by two guys, Kernighan and Ritchie. It's
called "The C Programming Language". It answers your question.

I could give you a better answer to your question, but that would be
counter-productive, because you'd just continue to make the next beginners
mistake and ask again.

Hint: what does the '*' mean. And what is 'p' initialized to.

//art

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