Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!rutgers!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: Another silly question
Message-ID: <10135@smoke.BRL.MIL>
Date: 27 Apr 89 03:46:29 GMT
References: <pointer> <array> <reference> <access> <element> <2459@nmtsun.nmt.edu>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 8

In article <2459@nmtsun.nmt.edu> kelly@titan.nmt.edu (Sean Kelly) writes:
>He expects that many compilers would instead add the value of i to the
>pointer a, and then reference the item stored there.

In C, pointer arithmetic ALWAYS involves scaling by the size of the
pointed-to objects.  This is one of Dennis's really useful insights.
It is so fundamental to C that I have to worry about an instructor
who claims otherwise.