From owner-freebsd-current@FreeBSD.ORG  Sun Jan 16 19:47:49 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 8496216A4CF
	for <freebsd-current@freebsd.org>;
	Sun, 16 Jan 2005 19:47:49 +0000 (GMT)
Received: from kientzle.com (h-66-166-149-50.snvacaid.covad.net
	[66.166.149.50])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 440FD43D48
	for <freebsd-current@freebsd.org>;
	Sun, 16 Jan 2005 19:47:49 +0000 (GMT)
	(envelope-from kientzle@freebsd.org)
Received: from freebsd.org (p54.kientzle.com [66.166.149.54])
	by kientzle.com (8.12.9/8.12.9) with ESMTP id j0GJlmOZ042813;
	Sun, 16 Jan 2005 11:47:49 -0800 (PST)
	(envelope-from kientzle@freebsd.org)
Message-ID: <41EAC4E4.5020809@freebsd.org>
Date: Sun, 16 Jan 2005 11:47:48 -0800
From: Tim Kientzle <kientzle@freebsd.org>
User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.4) Gecko/20031006
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Thomas Dickey <dickey@radix.net>
References: <Pine.NEB.3.96L.1050116120744.50371A-100000@fledge.watson.org>
	<20050116144113.GB66854@gothmog.gr> <41EAB5FE.30603@freebsd.org>
	<20050116193757.GA10974@saltmine.radix.net>
In-Reply-To: <20050116193757.GA10974@saltmine.radix.net>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
cc: freebsd-current@freebsd.org
Subject: Re: gratuitous gcc warnings: unused function arguments?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 16 Jan 2005 19:47:49 -0000

Thomas Dickey wrote:
> On Sun, Jan 16, 2005 at 10:44:14AM -0800, Tim Kientzle wrote:
> 
>>Giorgos Keramidas suggested:
>>
>>>%      (void)argv;
>>
>>I first saw this idiom for marking unused
>>arguments over 10 years ago and have used
>>it extensively since then.  Very portable;
>>highly recommended.
> 
> 
> except of course for the compilers that warn about no effect...

I've not seen that issue with this particular
idiom.  The compilers I've seen seem to
recognize this as a special case.

No doubt there are exceptions.

Tim