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Date:      Sat, 31 Oct 1998 12:04:07 -0800
From:      Mike Smith <mike@smith.net.au>
To:        "John C. Place" <jcplace@ibm.net>
Cc:        hackers@freebsd.com, hackers@FreeBSD.ORG
Subject:   Re: scanf in the kernel? 
Message-ID:  <199810312004.MAA01039@dingo.cdrom.com>
In-Reply-To: Your message of "Sat, 31 Oct 1998 14:46:49 EST." <19981031144649.A278@ka3tis.com> 

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> On Fri, Oct 30, 1998 at 10:25:39AM -0500, Bill Fumerola wrote:
> > I'm not a kernel-hacking kind of guy, but I know just from personal C
> > experiences that scanf makes things a lot easier to change later on and
> > easier to get a visual representation of. scanf and sprintf have become my
> > friend.
> > 

> I am not one either but I thought the *printf commands are very
> expensive (to the processer) and something as low level as the kernel
> would one try to avoid these???

One would generally try to avoid having them anywhere in a critical 
path, certainly, but they're not actually that expensive, and there's 
always a tradeoff between speed and maintainability.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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