From owner-freebsd-questions  Fri May 17  3: 5:18 2002
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Date: Fri, 17 May 2002 11:04:06 +0100 (BST)
From: Jan Grant <Jan.Grant@bristol.ac.uk>
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To: shubhamr <shubhamr@malkauns.nsc.com>
Cc: "questions@FreeBSD.ORG" <questions@freebsd.org>
Subject: Re: confusion in C
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On Fri, 17 May 2002, shubhamr wrote:

> am confused a bit over
> &a->b->c.
>
> can someone clear as to what it means?
>
> shubha

Yes, it means &(a->b->c), that is, the address of the c.

I dunno if this will help, but...

#include <stdlib.h>
#include <stdio.h>

struct B {
        int c;
};

struct A {
        struct B *b;
};

main() {

        struct A *a = malloc(sizeof(struct A));
        struct B *b = a->b = malloc(sizeof(struct B));
        int *ptr_to_int = &a->b->c;

        b->c = 1234;

        if (*ptr_to_int == 1234)
                printf("&a->b->c has followed the links\n");
}


-- 
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44(0)117 9287088 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk
printf 'cat\nhello world' | `sh -c 'read c; echo $c'`




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