Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!amdcad!ames!nrl-cmf!cmcl2!brl-adm!brl-smoke!gwyn
From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.lang.c
Subject: Re: Another way (How not to write a loop)
Message-ID: <7278@brl-smoke.ARPA>
Date: 18 Feb 88 22:27:35 GMT
References: <560@naucse.UUCP> <1988Feb11.200149.25172@sq.uucp> <2115@bsu-cs.UUCP> <6848@sol.ARPA> <16982@watmath.waterloo.edu>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 14

In article <16982@watmath.waterloo.edu> rbutterworth@watmath.waterloo.edu (Ray Butterworth) writes:
-> >     auto size_t index;
-> >     index = sizeof(array) / sizeof(array[0]);
-> >     while (--index >= 0)
-The problem I was trying to point out is that much existing
-code wasn't written with perfect style, and this is yet another
-way in which otherwise correct code will break when it is ported
-to an ANSI compiler (as I found out the hard way).

The fact that the result of sizeof has an unsigned integral type is
not new with ANSI C.  UNIX C has been this way since around 1980 at
least.  You're getting confused since Berkeley didn't pick up this
change when they stole the pre-USG 3.0 C compiler (circa 1979) that
is included in their distribution.