Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!nrl-cmf!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.ARPA (Doug Gwyn )
Newsgroups: comp.lang.c
Subject: Re: `char' parameters
Keywords: parameter, K&R, ANSI C
Message-ID: <8408@smoke.ARPA>
Date: 1 Sep 88 01:37:49 GMT
References: <1616@se-sd.sandiego.ncr.com>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 13

In article <1616@se-sd.sandiego.ncr.com> rns@se-sd.sandiego.NCR.COM (Rick Schubert) writes:
>	1. Is it illegal to declare a parameter to be of type `char'?

No, but it's rather pointless since the parameter really IS passed
as an int.  The compiler HAS to make the adjustment.

>	2. If not, is it valid to treat the parameter as type `int'?

This is recommended practice.

>	3. If so, what does the unary `&' operator do to such a variable?

Takes its address, just as for any other int.