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From: Andreas Schwab <schwab@suse.de>
To: "linux-os (Dick Johnson)" <linux-os@analogic.com>
Cc: "John Anthony Kazos Jr." <jakj@j-a-k-j.com>,
       "Randy Dunlap" <randy.dunlap@oracle.com>,
       "Richard Knutsson" <ricknu-0@student.ltu.se>,
       "Jiri Bohac" <jbohac@suse.cz>, <akpm@osdl.org>,
       "Linux kernel" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] fix abs() macro to work with types wider than int
References: <20070419092339.GA13569@dwarf.suse.cz>
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Date: Wed, 25 Apr 2007 23:57:53 +0200
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	(linux-os@analogic.com's message of "Wed, 25 Apr 2007 16:30:29 -0400")
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"linux-os (Dick Johnson)" <linux-os@analogic.com> writes:

> The original query was for a macro.

A macro that does not evaluate its argument more than once.  If you want
it to match the behaviour as defined by the C standard then it is not
allowed to do so.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."