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From: pete@othello.dartmouth.edu (Pete Schmitt)
Newsgroups: comp.lang.c
Subject: What is the really pointing to?
Message-ID: <21910@dartvax.Dartmouth.EDU>
Date: 7 May 90 20:08:24 GMT
Sender: news@dartvax.Dartmouth.EDU
Distribution: comp
Lines: 15

What is the null pointer really pointing to?

If I define the following:

struct entry
{
	int	value;
	struct entry *next;
};

struct entry n1, n2, n3, *list_pointer = &n1;

n1.next = &n2;
n2.next = &n3;
n3.next = (struct entry *) 0;   /* <-- what is this pointing to, address 0? */