From: Andreas Schwab <schwab@suse.de>
To: "Dave Korn" <dave.korn@artimi.com>
Cc: "'Sheng-Liang Song'" <ssl@baymicrosystems.com>,
"'Bin Chen'" <binary.chen@gmail.com>,
"'Eli Zaretskii'" <eliz@gnu.org>, <gdb@sourceware.org>
Subject: Re: (len % 1) != 0
Date: Tue, 19 Feb 2008 21:41:00 -0000 [thread overview]
Message-ID: <je3aro65cw.fsf@sykes.suse.de> (raw)
In-Reply-To: <007f01c87324$00f45a90$2e08a8c0@CAM.ARTIMI.COM> (Dave Korn's message of "Tue\, 19 Feb 2008 18\:19\:44 -0000")
"Dave Korn" <dave.korn@artimi.com> writes:
> On 19 February 2008 16:30, Sheng-Liang Song wrote:
>
>> or
>>
>> (len & 1) != 0 <=> (len % 2) != 0
>>
>
> That would have the advantage of not requiring a divide operation :)
The divide operation is already required and can be combined with the
modulo operation.
And this is by no means performance critical.
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
"Premature optimization is the root of all evil."
prev parent reply other threads:[~2008-02-19 20:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-17 5:57 Bin Chen
2008-02-17 14:13 ` Eli Zaretskii
2008-02-17 14:41 ` Bin Chen
2008-02-17 15:26 ` Daniel Jacobowitz
2008-02-19 16:32 ` Sheng-Liang Song
2008-02-19 18:25 ` Dave Korn
2008-02-19 18:30 ` David Daney
[not found] ` <18363.7810.91075.314867@gargle.gargle.HOWL>
2008-02-19 18:35 ` Dave Korn
2008-02-19 18:47 ` David Daney
2008-02-19 18:49 ` Daniel Jacobowitz
2008-02-19 19:08 ` Dave Korn
2008-02-19 21:41 ` Andreas Schwab [this message]
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