Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.forth > #60298
| From | anton@mips.complang.tuwien.ac.at (Anton Ertl) |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: RFD: Drop double numbers as input format |
| Date | 2017-06-04 16:21 +0000 |
| Organization | Institut fuer Computersprachen, Technische Universitaet Wien |
| Message-ID | <2017Jun4.182146@mips.complang.tuwien.ac.at> (permalink) |
| References | <a5b211f0-f38f-4188-9cfb-ac80ba0e482f@googlegroups.com> <2017Jun4.121848@mips.complang.tuwien.ac.at> <75a0e3e5-2ef5-4018-9e54-a246e0df2696@googlegroups.com> |
Matthias Trute <matthias.trute@gmail.com> writes:
>
>> I think that's a little extreme.
>
>Indeed. What I find at least worth discussing is whether
>it is really useful and necessary to input double numbers
>directly. They have an rather artificial syntax and very
>little benefit. Double numbers by itself are highly useful.
>
>> My solution is to remove the
>> prefixless double syntax, but leave the syntax with a prefix in, e.g.
>>
>> #100000000.
>
>does it mean that a prefix-less 1. can be considered a floating point
>number?
It would be non-standard (at least at first). Systems could recognize
"1." as FP number. If common practice in this direction emerges, one
could standardize that.
>> That would mean that we cannot have portable code with double literals
>> beyond the range of what fits in single cells. We may not need that
>> often, but we should not rule it out.
>
>Nope, we can have double number literals, but not in the form 1. but
>1 0 (a dot should follow, but looks confusing).
How do you write a number larger than 2^15-1, and one larger than
2^31-1 etc. To illustrate the problem:
[~/gforth:94611] gforth
Gforth 0.7.9_20170601, Copyright (C) 1995-2016 Free Software Foundation, Inc.
Gforth comes with ABSOLUTELY NO WARRANTY; for details type `license'
Type `help' for basic help
12345 150 d. 2767011611056432754745 ok
[~/gforth:94612] vfxlin
VFX Forth for Linux IA32 Version: 4.72 [build 0555]
12345 150 d. 644245106745 ok
- 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/
Back to comp.lang.forth | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
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
csiph-web