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Groups > comp.lang.forth > #60272 > unrolled thread

RFD: Drop double numbers as input format

Started byMatthias Trute <matthias.trute@gmail.com>
First post2017-06-04 01:25 -0700
Last post2017-06-09 18:07 +0000
Articles 3 on this page of 63 — 24 participants

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  RFD: Drop double numbers as input format Matthias Trute <matthias.trute@gmail.com> - 2017-06-04 01:25 -0700
    Re: RFD: Drop double numbers as input format Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-04 03:45 -0500
    Re: RFD: Drop double numbers as input format mhx@iae.nl - 2017-06-04 02:10 -0700
      Re: RFD: Drop double numbers as input format albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-04 12:12 +0200
        Re: RFD: Drop double numbers as input format Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-05 02:32 -0500
          Re: RFD: Drop double numbers as input format albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-05 10:19 +0200
            Re: RFD: Drop double numbers as input format anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-05 09:14 +0000
              Re: RFD: Drop double numbers as input format Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-05 04:57 -0500
            Re: RFD: Drop double numbers as input format Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-05 04:51 -0500
          Re: RFD: Drop double numbers as input format Cecil Bayona <cbayona@cbayona.com> - 2017-06-05 11:53 -0500
            Re: RFD: Drop double numbers as input format Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-05 12:29 -0500
            Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-05 11:20 -0700
              Re: RFD: Drop double numbers as input format Julian Fondren <julian.fondren@gmail.com> - 2017-06-05 11:25 -0700
                Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-06 00:50 -0700
                  Re: RFD: Drop double numbers as input format stephen@mpeforth.com (Stephen Pelc) - 2017-06-06 10:16 +0000
                    Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-06 05:30 -0700
                Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-06 22:54 -0700
            Re: RFD: Drop double numbers as input format Mark Wills <markwills1970@gmail.com> - 2017-06-06 02:12 -0700
              Re: RFD: Drop double numbers as input format Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-06 04:23 -0500
                Re: RFD: Drop double numbers as input format Cecil Bayona <cbayona@cbayona.com> - 2017-06-06 10:26 -0500
              Re: RFD: Drop double numbers as input format anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-06 09:52 +0000
                Re: RFD: Drop double numbers as input format Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-06-06 04:57 -0700
                Re: RFD: Drop double numbers as input format Mark Wills <markwills1970@gmail.com> - 2017-06-06 06:01 -0700
                Re: RFD: Drop double numbers as input format Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-06-06 18:07 +0100
              Re: RFD: Drop double numbers as input format Julian Fondren <julian.fondren@gmail.com> - 2017-06-06 08:09 -0700
                Re: RFD: Drop double numbers as input format Mark Wills <markwills1970@gmail.com> - 2017-06-06 11:51 -0700
                  Re: RFD: Drop double numbers as input format Julian Fondren <julian.fondren@gmail.com> - 2017-06-06 12:19 -0700
        Re: RFD: Drop double numbers as input format Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-06-10 23:23 +0100
      Re: RFD: Drop double numbers as input format Paul Rubin <no.email@nospam.invalid> - 2017-06-04 17:05 -0700
        Re: RFD: Drop double numbers as input format rickman <gnuarm@gmail.com> - 2017-06-04 21:38 -0400
        Re: RFD: Drop double numbers as input format Julian Fondren <julian.fondren@gmail.com> - 2017-06-04 20:26 -0700
          Re: RFD: Drop double numbers as input format mhx@iae.nl - 2017-06-05 00:01 -0700
            Re: RFD: Drop double numbers as input format Matthias Trute <matthias.trute@gmail.com> - 2017-06-05 01:18 -0700
        Re: RFD: Drop double numbers as input format mhx@iae.nl - 2017-06-04 23:47 -0700
        Re: RFD: Drop double numbers as input format Ron Aaron <rambamist@gmail.com> - 2017-06-05 09:56 +0300
        Re: RFD: Drop double numbers as input format Mark Wills <markwills1970@gmail.com> - 2017-06-06 01:46 -0700
        Re: RFD: Drop double numbers as input format "HAA" <someone@microsoft.com> - 2017-06-07 21:44 +1000
          Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-07 05:13 -0700
            Re: RFD: Drop double numbers as input format "HAA" <someone@microsoft.com> - 2017-06-08 12:36 +1000
          Re: RFD: Drop double numbers as input format Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-06-07 07:33 -0700
            Re: RFD: Drop double numbers as input format "HAA" <someone@microsoft.com> - 2017-06-08 12:34 +1000
              Re: RFD: Drop double numbers as input format Alex <alex@rivadpm.com> - 2017-06-08 09:55 +0100
                Re: RFD: Drop double numbers as input format "HAA" <someone@microsoft.com> - 2017-06-11 17:22 +1000
          Re: RFD: Drop double numbers as input format hughaguilar96@gmail.com - 2017-06-08 17:13 -0700
    Re: RFD: Drop double numbers as input format mhx@iae.nl - 2017-06-04 02:18 -0700
    Re: RFD: Drop double numbers as input format "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-06-04 09:54 +0000
    Re: RFD: Drop double numbers as input format albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-04 12:07 +0200
    Re: RFD: Drop double numbers as input format anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-04 10:18 +0000
      Re: RFD: Drop double numbers as input format mhx@iae.nl - 2017-06-04 05:47 -0700
        Re: RFD: Drop double numbers as input format anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-04 15:44 +0000
      Re: RFD: Drop double numbers as input format Matthias Trute <matthias.trute@gmail.com> - 2017-06-04 09:10 -0700
        Re: RFD: Drop double numbers as input format anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-04 16:21 +0000
        Re: RFD: Drop double numbers as input format Coos Haak <htrofhc@gmail.com> - 2017-06-04 18:33 +0200
      Re: RFD: Drop double numbers as input format Bernd Paysan <bernd@net2o.de> - 2017-06-07 01:21 +0200
        Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-06 22:57 -0700
          Re: RFD: Drop double numbers as input format Julian Fondren <julian.fondren@gmail.com> - 2017-06-06 23:34 -0700
            Re: RFD: Drop double numbers as input format minforth@arcor.de - 2017-06-07 01:12 -0700
    Re: RFD: Drop double numbers as input format The Beez <the.beez.speaks@gmail.com> - 2017-06-07 02:38 -0700
    Re: RFD: Drop double numbers as input format JennyB <jennybrien@googlemail.com> - 2017-06-07 02:45 -0700
      Re: RFD: Drop double numbers as input format foxaudioresearch@gmail.com - 2017-06-08 18:34 -0700
        Re: RFD: Drop double numbers as input format Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2017-06-10 23:08 +0100
          Re: RFD: Drop double numbers as input format anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-11 12:32 +0000
      Re: RFD: Drop double numbers as input format "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-06-09 18:07 +0000

Page 4 of 4 — ← Prev page 1 2 3 [4]

#60582

FromJan Coombs <jenfhaomndgfwutc@murmic.plus.com>
Date2017-06-10 23:08 +0100
Message-ID<20170610230818.2cca4ae4@t530.lan>
In reply to#60475
On Thu, 8 Jun 2017 18:34:48 -0700 (PDT)
foxaudioresearch@gmail.com wrote:

> > > Typical Usage
> > > =============
> > > 
> > > Existing double cell input formats are to be split into
> > > two literals. Existing sequences such as "1." are to be
> > > replaced with " 1 0 ".
> 
> I like this one.
> This would make Forth appear more "normal" "rational" (pick
> your own word) to newbies.
> 
> If there was a standard way to add this functionality to a
> "standard" system that would be ideal but I may be dreaming in
> full colour with that idea. 

Do you like hex?

Gforth 0.7.9_20170518, Copyright (C) 1995-2016 Free Software
Foundation, Inc. Gforth comes with ABSOLUTELY NO WARRANTY; for
details type `license' Type `help' for basic help
  ok
hex  ok
  ok
1122334455667788 88aabbccddeeff00 swap d.
112233445566778888AABBCCDDEEFF00  ok


Decimal is harder, as Albert has been lamenting, especially for
floats.

Jan Coombs

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#60609

Fromanton@mips.complang.tuwien.ac.at (Anton Ertl)
Date2017-06-11 12:32 +0000
Message-ID<2017Jun11.143256@mips.complang.tuwien.ac.at>
In reply to#60582
Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> writes:
>On Thu, 8 Jun 2017 18:34:48 -0700 (PDT)
>foxaudioresearch@gmail.com wrote:
>
>> > > Typical Usage
>> > > =============
>> > > 
>> > > Existing double cell input formats are to be split into
>> > > two literals. Existing sequences such as "1." are to be
>> > > replaced with " 1 0 ".
>> 
>> I like this one.
>> This would make Forth appear more "normal" "rational" (pick
>> your own word) to newbies.
>> 
>> If there was a standard way to add this functionality to a
>> "standard" system that would be ideal but I may be dreaming in
>> full colour with that idea. 
>
>Do you like hex?
>
>Gforth 0.7.9_20170518, Copyright (C) 1995-2016 Free Software
>Foundation, Inc. Gforth comes with ABSOLUTELY NO WARRANTY; for
>details type `license' Type `help' for basic help
>  ok
>hex  ok
>  ok
>1122334455667788 88aabbccddeeff00 swap d.
>112233445566778888AABBCCDDEEFF00  ok

[~/gforth:94671] sf
SwiftForth i386-Linux 3.6.3 29-Jun-2016 
hex  ok
1122334455667788 88aabbccddeeff00 swap cr d.                                   
55667788DDEEFF00  ok

Hmm.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2017: http://www.euroforth.org/ef17/

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#60521

From"Rudy Velthuis" <newsgroups@rvelthuis.de>
Date2017-06-09 18:07 +0000
Message-ID<xn0kr169ebdvk7h00o@nntp.aioe.org>
In reply to#60429
JennyB wrote:

> In which languages is 1. as opposed to 1.0 both a valid floating
point
> number and commonly used as such? 

In most. Can't always say if 1. is commonly used (that depends on the
author of the code), but it is certainly valid for floating point (and
*only* for floating point) in most languages. Forth is the only
language I know that denotes a double *integer* with a trailing dot.
After all, it is not called "decimal point" for nothing.

> And does any language use floating point in a base other than decimal?

Yes, e.g. C: 

    float val = 0xDE.488641p8;

Instead of e or E, it uses p or P for the exponent (which is *not*
optional).

https://stackoverflow.com/a/5480396/95954

-- 
Rudy Velthuis        http://www.rvelthuis.de

"Why do grandparents and grandchildren get along so well?  They 
 have the same enemy -- the mother." -- Claudette Colbert.

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