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Date: Sun, 16 Jan 2005 10:44:14 -0800
From: Tim Kientzle <kientzle@freebsd.org>
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To: Giorgos Keramidas <keramida@freebsd.org>
References: <Pine.NEB.3.96L.1050116120744.50371A-100000@fledge.watson.org>
	<20050116144113.GB66854@gothmog.gr>
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cc: freebsd-current@freebsd.org
cc: Robert Watson <rwatson@freebsd.org>
Subject: Re: gratuitous gcc warnings: unused function arguments?
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Robert Watson <rwatson@freebsd.org> complained that:
> 
>>At some point in the relatively recent past, we began to generate
>>warnings for unused arguments in function definitions.  ....
>>
>>int
>>main(int argc, char *argv[])
>>{
>>
>>        if (argc != 1)ut
>>                usage();
>>
>>	dostuff();
>>}

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.

Tim