Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!ficc!peter
From: peter@ficc.uu.net (Peter da Silva)
Newsgroups: comp.lang.c
Subject: Re: When is a cast not a cast?
Message-ID: <4078@ficc.uu.net>
Date: 4 May 89 19:39:11 GMT
References: <2747@buengc.BU.EDU> <2515@ogccse.ogc.edu>
Organization: Xenix Support
Lines: 12

Think of memory as a deck of cards. You can add 3 to the 5 of spades, and
get the 8 of spades. You can subtract the 4 of clubs from the 9 of clubs
and get 5 cards difference. But you can't add the 3 of hearts to the four
of hearts. -- you can't add pointers to pointers.

Continuing, you can't subtract the three of hearts from the four of spades.
-- you can't compare pointers of different types.
-- 
Peter da Silva, Xenix Support, Ferranti International Controls Corporation.

Business: uunet.uu.net!ficc!peter, peter@ficc.uu.net, +1 713 274 5180.
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