Date: Fri, 17 May 2002 11:04:06 +0100 (BST) From: Jan Grant <Jan.Grant@bristol.ac.uk> To: shubhamr <shubhamr@malkauns.nsc.com> Cc: "questions@FreeBSD.ORG" <questions@freebsd.org> Subject: Re: confusion in C Message-ID: <Pine.GSO.4.44.0205171056100.28228-100000@mail.ilrt.bris.ac.uk> In-Reply-To: <3CE4D043.DCB731F4@malkauns.nsc.com>
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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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