Path: utzoo!attcan!uunet!jarthur!elroy.jpl.nasa.gov!jato!granite!brian
From: brian@granite.jpl.nasa.gov (Brian of ASTD-CP)
Newsgroups: comp.lang.scheme
Subject: XScheme numbers representation?
Summary: Use MIT CScheme code to build bignums
Message-ID: <4483@jato.Jpl.Nasa.Gov>
Date: 3 Aug 90 15:45:44 GMT
References: <1990Jul23.075719.8352@agate.berkeley.edu> <.648809664@dutepp1>
Sender: news@jato.Jpl.Nasa.Gov
Reply-To: brian@granite.Jpl.Nasa.Gov (Brian of ASTD-CP)
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 20

In article <.648809664@dutepp1> alfred@dutepp1.tudelft.nl (Alfred Kayser) writes:
>The bignumber system as supported by most Scheme implementations (except
>XScheme) doesn't exist in C.
>
>--
>-- Ir. Alfred Kayser. PACS, OS/2, TCP/IP. --- Email: AKayser@et.tudelft.nl --
>-- CARDIT, Delft University of Technology ------------ Tel: (31)-15-786179 --
>-- P.O.Box 5031, 2600 GA Delft, The Netherlands ------ Fax: (31)-15-784898 --

  You're absolutely right, bignums are a big deal to implement.  One 
  approach to cutting short the work would be to lift the bignum code
  from MIT CScheme and attempt to sew it into XScheme.  I know of one
  Scheme that uses the MIT CScheme bignum code (MacScheme 2.0), so
  at least one project has successfully used this approach.


 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 . . Brian Beckman . . . . . . . . . . brian@granite.jpl.nasa.gov. . . .
 . . meta-disclaimer: every statement in this message is false . . . . .
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .