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
Date: Wed, 25 Apr 2007 22:05:54 +0200 [thread overview]
Message-ID: <jetzv41aot.fsf@sykes.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.61.0704251418010.26778@chaos.analogic.com> (linux-os@analogic.com's message of "Wed, 25 Apr 2007 14:24:12 -0400")
"linux-os (Dick Johnson)" <linux-os@analogic.com> writes:
> I think this works, regardless of the length of the integers:
>
> #define abs(x) (((x)<0)?-(x):(x))
But it evaluates its argument more than once.
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."
next prev parent reply other threads:[~2007-04-25 20:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-19 9:23 [RFC][PATCH] fix abs() macro to work with types wider than int Jiri Bohac
2007-04-19 15:43 ` Randy Dunlap
2007-04-20 12:44 ` Richard Knutsson
2007-04-25 15:20 ` Randy Dunlap
2007-04-25 15:26 ` John Anthony Kazos Jr.
2007-04-25 15:38 ` Randy Dunlap
2007-04-25 23:42 ` John Anthony Kazos Jr.
2007-04-25 18:24 ` linux-os (Dick Johnson)
2007-04-25 20:05 ` Andreas Schwab [this message]
2007-04-25 20:30 ` linux-os (Dick Johnson)
2007-04-25 21:57 ` Andreas Schwab
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