All of lore.kernel.org
 help / color / mirror / Atom feed
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.

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=42E4131D.6090605@gmail.com \
    --to=vyas.puneet@gmail.com \
    --cc=jengelh@linux01.gwdg.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lkml@dodo.com.au \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.