delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1997/03/08/17:15:50

From: "John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: no subject (file transmission)
Date: Sat, 08 Mar 1997 16:14:46 -0800
Organization: Two pounds of chaos and a pinch of salt
Lines: 30
Message-ID: <332200F6.5EAA@cs.com>
References: <9703081750 DOT AA15179 AT memphis DOT giss DOT nasa DOT gov>
Reply-To: fighteer AT cs DOT com
NNTP-Posting-Host: ppp104.cs.com
Mime-Version: 1.0
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Rhodes W. Fairbridge wrote:
> 
> I have a C prgm that produces correct numerical results on a Sun 3-50 but
> incorrect results on a 486-d66 (16 MB ram) running dos6.2 when compiled with
> DJGPP ver:GO32,v.1.12.maint.3,gcc 2.6.0. (error example:values larger than .5,
> when running an FFT, and similar sin/cos errors). Is there a new release of the
> Math Lib ?..can you supply a correction ?

You may wish to obtain the newest version of DJGPP, v2.01.  I don't know
the details of the floating point algorithms, but there were a number of
bug fixes made to the math library code.  The latest versions of all
DJGPP tools can be obtained from
<ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/>, in the directories
beginning with 'v2'.  I suggest you read the file 'v2/readme.1st' before
getting anything else, as it details exactly what you need to download
and how to install it.  There were a lot of changes from v1.12 to v2.x! 
:)

If you still have problems after upgrading, please post some sample code
that produces the erroneous output so we can try it ourselves.  I also
have a 486/66 computer available, so I'd be glad to test it myself.

Hope this helps!

-- 
---------------------------------------------------------------------
| John M. Aldrich, aka Fighteer I  |        fighteer AT cs DOT com         |
| Plan:  To find ANYONE willing to |   http://www.cs.com/fighteer   |
| play Descent 2 on DWANGO!        | Tagline: <this space for rent> |
---------------------------------------------------------------------

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019