From: DervishD <lartc@dervishd.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] match'ing packets by size
Date: Mon, 19 Dec 2005 17:28:25 +0000 [thread overview]
Message-ID: <20051219172825.GC19196@DervishD> (raw)
In-Reply-To: <20051219104355.6034e25c@pulsar.inexo.com.br>
Hi Ethy :)
* Ethy H. Brito <ethy.brito@inexo.com.br> dixit:
> > > Well, 0xffb0 translates to 1111 1111 1011 0000 (which is -80 BTW).
> >
> > It is a mask, not a number (and certainly not a signed one), so
> > there's no point in considering it -80. It is just a mask.
>
> My point in considering it a number is explained by:
>
> printf("%hx", -80);
OK, I just didn't think about that, sorry :)
> So, if you intend to creat a mask for 256 bytes size, you printf it as -256.
Only if your C implementation treats negative numbers in 2's
complement ;) Of course, I don't know of any C implementation where
integers don't use 2's complement for negative numbers, anyway...
Raúl Núñez de Arenas Coronado
--
Linux Registered User 88736 | http://www.dervishd.net
http://www.pleyades.net & http://www.gotesdelluna.net
It's my PC and I'll cry if I want to...
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prev parent reply other threads:[~2005-12-19 17:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-19 12:43 [LARTC] match'ing packets by size Ethy H. Brito
2005-12-19 15:21 ` DervishD
2005-12-19 16:49 ` Ethy H. Brito
2005-12-19 17:28 ` DervishD [this message]
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