Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!philabs!cmcl2!floyd!harpo!seismo!hao!hplabs!sri-unix!edhall@rand-unix
From: edhall%rand-unix@sri-unix.UUCP
Newsgroups: net.unix
Subject: Re: argc[argv]
Message-ID: <14747@sri-arpa.UUCP>
Date: Sun, 18-Dec-83 20:54:00 EST
Article-I.D.: sri-arpa.14747
Posted: Sun Dec 18 20:54:00 1983
Date-Received: Wed, 21-Dec-83 05:40:58 EST
Lines: 14

In C the addition of an integer to a  pointer  implicitly  does  the
multiplication you attempt to do explicitly (i.e., your example ends
up doing the multiplication twice).  This follows from the rules for
C pointer arithmetic, in which adding to a pointer works in units of
N bytes, where N is the size of the object pointed to. (Look  it  up
in  K  &  R...)  The  equivalence  of  a[i] and *(a+i) works for all
pointers `a' and integer types `i'.

Perhaps you were confused by the  need  for  the  multiplication  in
assembler-language programming.

		-Ed Hall
		edhall@rand-unix        (ARPA)
		decvax!randvax!edhall   (UUCP)