Re: profesional bignum arithmetic in c, how done?

From	glen herrmannsfeldt <gah@ugcs.caltech.edu>
Newsgroups	comp.lang.c
Subject	Re: profesional bignum arithmetic in c, how done?
Date	2015-09-12 13:46 +0000
Organization	Aioe.org NNTP Server
Message-ID	<mt1ab6$a2g$1@speranza.aioe.org> (permalink)
References	(5 earlier) <8pAFx.393805$vg2.55167@fx34.am4> <d0o0va502jjtrq1eo0la4qutb9ki1aqif5@4ax.com> <7eccd201-3ead-4ae4-8adf-c6eddc2e27c4@googlegroups.com> <meq7va9qua5b69ntrtsscgkipael6l9sdj@4ax.com> <dfacea7c-3341-4d3a-ac77-e15126779074@googlegroups.com>

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fir <profesor.fir@gmail.com> wrote:
> W dniu sobota, 12 wrze??nia 2015 11:59:14 UTC+2 u??ytkownik Rosario19 napisa??:

(snip)

>> if i remeber well in the time what i have in the files...

>> first write decimal routine for sum, sub, div, mul array of numbers as
>> decimal char digit 
>> example of such numbers the array of char
>> 1,2,3
>> that would be the nuber "321" as string digit

(snip) 
> probably i was not yet doin that

> some maybe slight problems my appear for example when multiplying 
> unsigned 8 unsigned you need to get 64 bit result
> (speaking on 32 bit os) im not sure how well those biuld in 64 bit 
> types support

Most hardware has a multiply instruction generating a double length
product. Many high-level languages don't have this.

C compilers with (long long) will usually figure out if you cast one
or both operands of multiply to (long long) that you want such,
and not do the three multiplies by zero.

> that.. also division code must be somewhat changed as right now 
> im just doin sub in loop for digits that would be mostly 9 subbs 
> per digit, but for 32-bit unsigned 

Division is easy until the divisor gets too big. As with multiply,
you want a double length dividend which hardware usually supplies.

I recently did a 4000 digit pi calculation on an IBM 360/20
(with 8K core, so I can't do much more). The calculation is 
done in base 1000000000000000, the divide instruction takes
a 31 digit dividend and 15 digit divisor, generating a 15 digit
quotient and 15 digit remainder. Not hard at all to write that.

It does get harder when you need bignum divisor.

-- glen

Thread

profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-01 01:22 -0700
  Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-01 02:29 -0700
    Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 11:10 +0100
      Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-01 12:40 +0200
        Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 12:06 +0100
          Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-01 13:28 +0200
            Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 13:07 +0100
              Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-01 14:15 +0200
              Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-01 09:12 -0700
              Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-01 12:53 -0700
              Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 01:07 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 02:30 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 03:11 -0700
                Re: profesional bignum arithmetic in c, how done? Rosario19 <Ros@invalid.invalid> - 2015-09-27 12:15 +0200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 04:58 -0700
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-27 06:01 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 09:40 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 03:19 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-27 15:26 -0700
          Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-01 14:02 +0200
            Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 13:43 +0100
              Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-01 16:39 +0200
            Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-02 10:17 +1200
          Re: profesional bignum arithmetic in c, how done? <william@wilbur.25thandClement.com> - 2015-09-01 10:36 -0700
          Re: profesional bignum arithmetic in c, how done? "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-09-01 12:46 -0700
      Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-01 12:49 +0100
        Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-01 05:15 -0700
          Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-01 05:18 -0700
        Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-01 13:32 +0100
          Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-01 13:45 +0100
            Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-01 13:57 +0100
              Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-01 16:35 +0100
            Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-01 06:00 -0700
            Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 14:50 +0100
              Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-01 16:40 +0000
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 18:24 +0100
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-01 18:28 +0100
                Re: profesional bignum arithmetic in c, how done? Noob <root@127.0.0.1> - 2015-09-02 15:22 +0200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 09:05 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-02 17:55 +0100
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-03 10:20 +0200
                Re: profesional bignum arithmetic in c, how done? James Kuyper <jameskuyper@verizon.net> - 2015-09-03 08:37 -0400
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 15:22 +0100
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-03 07:52 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-01 10:29 -0700
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-01 19:45 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-01 12:23 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-01 11:25 -0700
                Re: profesional bignum arithmetic in c, how done? <william@wilbur.25thandClement.com> - 2015-09-01 11:34 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 20:26 +0100
                Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-01 19:02 +0000
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 20:51 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-01 13:04 -0700
                Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-01 23:11 +0200
                Re: profesional bignum arithmetic in c, how done? jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-01 21:13 +0200
                Re: profesional bignum arithmetic in c, how done? jadill33@gmail.com - 2015-09-01 13:34 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-01 13:46 -0700
                Re: profesional bignum arithmetic in c, how done? jadill33@gmail.com - 2015-09-01 14:43 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-01 15:13 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-02 10:24 +1200
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-01 15:56 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-02 11:03 +1200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-01 16:19 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-01 17:01 -0700
                Re: profesional bignum arithmetic in c, how done? jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-02 09:40 +0200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 00:43 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-02 08:58 +0100
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-02 08:49 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-02 11:37 +0100
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-02 11:48 +0100
                Re: profesional bignum arithmetic in c, how done? jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-02 15:59 +0200
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-02 16:09 +0200
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-02 16:00 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-02 08:12 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-02 17:21 +0100
                Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-02 12:54 +0200
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-06 15:25 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-06 17:14 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-06 17:16 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 12:12 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-07 04:42 -0700
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-07 14:55 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-07 07:35 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-06 18:19 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-06 18:25 -0700
                Re: profesional bignum arithmetic in c, how done? jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-07 14:25 +0200
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-07 05:35 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-07 13:49 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 15:00 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-07 07:24 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-07 07:39 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 16:28 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-07 08:34 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 16:58 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-07 09:16 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 17:18 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-07 18:05 +0100
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-07 21:31 +0200
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-07 13:19 -0700
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-08 08:56 +0200
                Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-07 18:25 +0200
                Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-07 18:16 +0200
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 17:30 +0100
                Re: profesional bignum arithmetic in c, how done? James Kuyper <jameskuyper@verizon.net> - 2015-09-07 12:44 -0400
                Re: profesional bignum arithmetic in c, how done? James Kuyper <jameskuyper@verizon.net> - 2015-09-07 12:17 -0400
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-07 10:31 +0200
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-11 10:26 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 12:05 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-07 04:17 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-07 12:51 +0100
                Re: profesional bignum arithmetic in c, how done? James Kuyper <jameskuyper@verizon.net> - 2015-09-07 12:42 -0400
                Re: profesional bignum arithmetic in c, how done? jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-07 21:07 +0200
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-22 04:09 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 02:14 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 02:21 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 03:03 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-02 11:43 +0100
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 08:36 -0700
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-02 15:58 -0500
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 14:16 -0700
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-02 17:11 -0500
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-02 23:55 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-03 01:22 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-03 06:01 -0700
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-03 10:29 +0200
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-03 08:15 +0100
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-03 10:41 +0200
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-03 09:53 +0100
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-03 11:46 +0200
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-11 12:59 -0700
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-03 10:24 -0500
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-11 13:22 -0700
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-11 12:48 -0700
                Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-11 13:27 -0700
                Re: profesional bignum arithmetic in c, how done? Rosario19 <Ros@invalid.invalid> - 2015-09-09 18:37 +0200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-11 23:02 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-11 23:19 -0700
                Re: profesional bignum arithmetic in c, how done? Rosario19 <Ros@invalid.invalid> - 2015-09-12 11:59 +0200
                Re: profesional bignum arithmetic in c, how done? Rosario19 <Ros@invalid.invalid> - 2015-09-12 12:02 +0200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-12 04:26 -0700
                Re: profesional bignum arithmetic in c, how done? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-09-12 13:46 +0000
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-12 07:21 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-12 18:04 +0100
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-12 10:58 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-12 19:21 +0100
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-12 12:09 -0700
                Re: profesional bignum arithmetic in c, how done? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-09-13 06:34 +0000
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-13 02:24 -0700
                Re: profesional bignum arithmetic in c, how done? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-09-13 21:49 +0000
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-13 10:56 +0100
                Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-12 20:32 +0200
                Re: profesional bignum arithmetic in c, how done? supercat@casperkitty.com - 2015-09-12 11:47 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-12 21:17 +0100
                Re: profesional bignum arithmetic in c, how done? bartekltg <bartekltg@gmail.com> - 2015-09-12 22:51 +0200
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-12 16:11 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-13 05:26 -0700
                Re: profesional bignum arithmetic in c, how done? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-09-12 18:25 +0000
                Re: profesional bignum arithmetic in c, how done? supercat@casperkitty.com - 2015-09-12 11:34 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Damon <Richard@Damon-Family.org> - 2015-09-12 19:53 -0400
                Re: profesional bignum arithmetic in c, how done? supercat@casperkitty.com - 2015-09-12 18:00 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-02 01:04 -0700
                Re: profesional bignum arithmetic in c, how done? jadill33@gmail.com - 2015-09-02 06:39 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-02 09:27 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 23:22 +0100
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-01 23:13 +0200
            Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-01 16:46 +0200
        Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-01 14:19 +0100
          Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-01 17:20 +0000
        Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-01 06:51 -0700
      Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-01 09:28 -0700
      Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 01:36 +0100
        Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-03 10:46 +0000
          Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 13:46 +0100
            Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 05:53 -0700
              Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-03 15:13 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 06:23 -0700
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-04 13:15 +0200
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 12:38 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-04 05:14 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 05:30 -0700
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-04 14:46 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 15:04 +0100
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-05 15:32 +0200
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-05 15:02 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-05 07:20 -0700
                Re: profesional bignum arithmetic in c, how done? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-09-05 16:57 +0000
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-06 10:50 +0200
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-05 15:58 +0100
                Re: profesional bignum arithmetic in c, how done? James Kuyper <jameskuyper@verizon.net> - 2015-09-05 11:24 -0400
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-04 07:07 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 07:16 -0700
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-05 15:38 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-05 06:48 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-05 07:48 +1200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 12:51 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-05 11:01 +1200
                Re: profesional bignum arithmetic in c, how done? Melzzzzz <mel@zzzzz.com> - 2015-09-05 02:34 +0200
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-05 12:49 +1200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 18:55 -0700
                Re: profesional bignum arithmetic in c, how done? Melzzzzz <mel@zzzzz.com> - 2015-09-05 03:56 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 19:26 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 20:58 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 21:55 -0700
                Re: profesional bignum arithmetic in c, how done? Melzzzzz <mel@zzzzz.com> - 2015-09-05 07:19 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 22:30 -0700
                Re: profesional bignum arithmetic in c, how done? Melzzzzz <mel@zzzzz.com> - 2015-09-05 07:35 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 22:48 -0700
                Re: profesional bignum arithmetic in c, how done? Melzzzzz <mel@zzzzz.com> - 2015-09-05 07:52 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-06 11:45 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-06 17:58 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-06 20:52 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-07 16:10 +1200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-07 04:09 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-04 15:03 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-05 11:02 +1200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 05:27 -0700
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-04 15:45 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 07:03 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 16:03 +0100
                Re: profesional bignum arithmetic in c, how done? jadill33@gmail.com - 2015-09-04 08:35 -0700
                Re: profesional bignum arithmetic in c, how done? gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-04 15:55 +0000
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 17:25 +0100
                Re: profesional bignum arithmetic in c, how done? gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-04 16:53 +0000
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-04 11:59 -0500
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 18:12 +0100
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-04 12:35 -0500
                Re: professional bignum arithmetic in c, how done? gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-04 17:59 +0000
                Re: professional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 11:31 -0700
                Re: professional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 20:27 +0100
                Re: professional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 12:39 -0700
                Re: professional bignum arithmetic in c, how done? Melzzzzz <mel@zzzzz.com> - 2015-09-04 22:13 +0200
                Re: professional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 13:30 -0700
                Re: professional bignum arithmetic in c, how done? Steve Thompson <stevet810@gmail.com> - 2015-09-04 20:33 +0000
                Re: professional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-04 14:26 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 20:14 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 17:11 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 14:24 +0100
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-04 19:20 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-05 02:26 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-05 11:02 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-05 03:28 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-05 23:17 +1200
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-05 15:01 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-05 04:29 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-05 04:47 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-05 05:14 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-05 13:17 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-05 05:37 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-05 05:32 -0700
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-05 09:46 -0500
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-05 16:11 +0100
                Re: profesional bignum arithmetic in c, how done? Robert Wessel <robertwessel2@yahoo.com> - 2015-09-07 00:07 -0500
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-05 11:39 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-05 04:24 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-05 12:32 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-05 13:30 +0100
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-05 13:43 +0100
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-05 05:47 -0700
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-05 05:48 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-05 05:56 -0700
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-05 07:38 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-05 10:16 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-05 12:09 -0700
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-05 06:00 -0700
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-05 06:15 -0700
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-05 07:12 -0700
                Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-05 15:05 +0000
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-05 17:32 +0100
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-05 15:44 +0100
                Re: profesional bignum arithmetic in c, how done? wssimms@gmail.com - 2015-09-05 08:17 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-05 15:29 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-05 15:40 -0700
                Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-13 08:07 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-05 14:59 -0700
            Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-03 15:48 +0100
            Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-03 16:24 +0000
              Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-03 09:46 -0700
                Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-03 18:02 +0100
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-03 11:47 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 11:54 -0700
                Re: profesional bignum arithmetic in c, how done? David Brown <david.brown@hesbynett.no> - 2015-09-03 22:40 +0200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 13:50 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 13:54 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 20:04 +0100
              Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 18:41 +0100
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-03 12:01 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 20:21 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 12:28 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 12:55 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 20:55 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 13:05 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 21:33 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 13:41 -0700
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-03 22:22 +0100
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 14:34 -0700
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-03 23:52 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-03 17:30 -0700
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-04 12:41 +1200
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 06:19 -0700
                Re: profesional bignum arithmetic in c, how done? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-04 16:38 +0100
                Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-04 08:51 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-04 09:50 -0700
                Re: profesional bignum arithmetic in c, how done? jadill33@gmail.com - 2015-09-03 13:50 -0700
                Re: profesional bignum arithmetic in c, how done? Keith Thompson <kst-u@mib.org> - 2015-09-03 16:29 -0700
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 01:44 +0100
                Re: profesional bignum arithmetic in c, how done? Ian Collins <ian-news@hotmail.com> - 2015-09-04 08:50 +1200
          Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-03 07:14 -0700
            Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-03 15:48 +0100
              Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-03 09:16 -0700
                Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-03 09:19 -0700
            Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-03 22:58 +0000
              Re: profesional bignum arithmetic in c, how done? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-03 17:13 -0700
                Re: profesional bignum arithmetic in c, how done? jt@toerring.de (Jens Thoms Toerring) - 2015-09-04 01:58 +0000
                Re: profesional bignum arithmetic in c, how done? Bartc <bc@freeuk.com> - 2015-09-04 11:22 +0100
      Re: profesional bignum arithmetic in c, how done? gordonb.cr5il@burditt.org (Gordon Burditt) - 2015-09-04 21:26 -0500
      Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-13 06:12 -0700
    Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-01 12:59 -0700
  Re: profesional bignum arithmetic in c, how done? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-09-07 05:20 -0700
  Re: profesional bignum arithmetic in c, how done? James Dow Allen <jdallen2000@yahoo.com> - 2015-09-13 03:19 -0700
    Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-09-13 04:11 -0700
    Re: profesional bignum arithmetic in c, how done? Richard Heathfield <rjh@cpax.org.uk> - 2015-09-13 14:06 +0100
    Re: profesional bignum arithmetic in c, how done? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-26 15:54 -0700
  Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-10-12 00:54 -0700
    Re: profesional bignum arithmetic in c, how done? Rosario19 <Ros@invalid.invalid> - 2015-10-12 19:50 +0200
      Re: profesional bignum arithmetic in c, how done? fir <profesor.fir@gmail.com> - 2015-10-12 23:49 -0700

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