From: Puneet Vyas <vyas.puneet@gmail.com>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Grant Coady <lkml@dodo.com.au>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: xor as a lazy comparison
Date: Sun, 24 Jul 2005 18:15:57 -0400 [thread overview]
Message-ID: <42E4131D.6090605@gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0507242342080.9022@yvahk01.tjqt.qr>
Jan Engelhardt wrote:
>>To confuse you, coders with assembly or hardware background throw in
>>
>>
>
>I doubt that. I'm good enough assembly to see this :)
>
>
>
>>equivalent bit operations to succinctly describe their visualisation
>>of solution space... Perhaps the writer _wanted_ you to pause and
>>think? Maybe the compiler produces better code? Try it and see.
>>
>>
>
>It produces a simple CMP. Should not be inefficient, though.
>
>
>Jan Engelhardt
>
>
I just compiled two identical program , one with "!=" and other with
"^". The assembly output is identical.
next prev parent reply other threads:[~2005-07-24 22:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-24 16:40 xor as a lazy comparison Jan Engelhardt
2005-07-24 20:07 ` Grant Coady
2005-07-24 21:43 ` Jan Engelhardt
2005-07-24 22:15 ` Puneet Vyas [this message]
2005-07-25 8:57 ` Bernd Petrovitsch
2005-07-25 17:55 ` Steven Rostedt
2005-07-25 19:10 ` Lee Revell
2005-07-25 19:16 ` Philippe Troin
2005-07-25 19:18 ` Lee Revell
2005-07-26 6:07 ` Jan Engelhardt
2005-07-26 8:30 ` Bernd Petrovitsch
2005-07-25 19:24 ` Steven Rostedt
2005-07-25 19:27 ` Lee Revell
2005-07-25 19:23 ` Paulo Marques
2005-07-25 19:25 ` Lee Revell
2005-07-25 20:24 ` Bill Davidsen
2005-07-25 18:00 ` [PATCH] make signal.c more readable (was: Re: xor as a lazy comparison) Steven Rostedt
-- strict thread matches above, loose matches on Subject: below --
2005-07-27 18:24 xor as a lazy comparison Clayton Weaver
2005-07-27 19:58 ` linux-os (Dick Johnson)
2005-07-28 0:04 ` Grant Coady
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