Wireshark-dev: Re: [Wireshark-dev] GMP

From: "Maynard, Chris" <Christopher.Maynard@xxxxxxxxx>
Date: Tue, 28 Oct 2008 11:07:28 -0400
The comments from Guy in the thread I referenced below led me to believe
that the requester actually had a 128-bit number and not just a byte
array.  If it's only a 16-byte array, then I agree with you - there's no
reason to display that as a numerical value.

In any case, I thought there might be other situations where having a
library that can rather easily deal with > 64-bit integers might be
desirable.  If not, you might want to keep GMP in mind should the need
arise in the future.  As I said, I found it very useful and easy to work
with for my own project.

FWIW,
Chris

> -----Original Message-----
> From: wireshark-dev-bounces@xxxxxxxxxxxxx [mailto:wireshark-dev-
> bounces@xxxxxxxxxxxxx] On Behalf Of Jaap Keuter
> Sent: Tuesday, October 28, 2008 1:33 AM
> To: Developer support list for Wireshark
> Subject: Re: [Wireshark-dev] GMP
> 
> Hi Chris,
> 
> Would that be large number arithmetic? Of which we do very little, if
any.
> Or would that be large number presentation, which is usually a poor
choice
> for
> displaying a byte array.
> 
> Thanx,
> Jaap
> 
> Maynard, Chris wrote:
> > Recently I have been working on a project for the Windows platform
> > involving arithmetic with very large integers, larger than any C
data
> > type will allow for.  As a result, I have been using GMP
> > (http://gmplib.org/).  I have found GMP to be very easy to work
with.
> >
> > Why do I mention GMP?  The following thread on the Wireshark
developer's
> > list might be one example of a situation where having support for
very
> > large numbers in Wireshark could be of value:
> > http://www.wireshark.org/lists/wireshark-dev/200810/msg00251.html.
I
> > did not search the list for more inquiries of this type, but I'm
> > guessing there are probably more.  Perhaps Wireshark could be built
with
> > GMP to solve such problems?  GMP itself is LGPL, but I don't think
that
> > precludes it from Wireshark use ... or does it?
> >
> > Anyway, I just thought I would mention it to see if there's any
interest
> > ...
> > - Chris
> >
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