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Groups > comp.lang.forth > #50202

Re: the IS-A function

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: the IS-A function
Date 2016-08-18 08:00 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2016Aug18.100027@mips.complang.tuwien.ac.at> (permalink)
References <af44a9ce-4ab4-4a60-b6b1-5a1b8a2fe820@googlegroups.com> <88d81f07-03f4-4297-9e7e-953ac3bfeead@googlegroups.com> <bb24efa8-d327-4d9b-b5ef-208b463bafd5@googlegroups.com>

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JennyB <jennybrien@googlemail.com> writes:
>With any given Forth it should be possible to determine the parent of a word defined using CREATE ... DOES> without needing to add an extra field. 

You can only determine which DOES> it is.  E.g,:

: foo does> drop ." foo" ;
: flip create foo ;
: flop create foo ;

If you have a word that has the DOES>-action from FOO, you cannot know
if from that if it was defined with FLIP or with FLOP.

- 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 2016: http://www.euroforth.org/ef16/

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Thread

the IS-A function hughaguilar96@gmail.com - 2016-08-15 23:10 -0700
  Re: the IS-A function hughaguilar96@gmail.com - 2016-08-16 00:22 -0700
  Re: the IS-A function hughaguilar96@gmail.com - 2016-08-16 14:01 -0700
  Re: the IS-A function hughaguilar96@gmail.com - 2016-08-16 14:20 -0700
    Re: the IS-A function JennyB <jennybrien@googlemail.com> - 2016-08-17 05:04 -0700
      Re: the IS-A function hughaguilar96@gmail.com - 2016-08-17 10:52 -0700
        Re: the IS-A function hughaguilar96@gmail.com - 2016-08-17 19:31 -0700
      Re: the IS-A function anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-08-18 08:00 +0000
        Re: the IS-A function JennyB <jennybrien@googlemail.com> - 2016-08-18 21:52 -0700
    Re: the IS-A function Julian Fondren <julian.fondren@gmail.com> - 2016-08-17 07:11 -0700
    Re: the IS-A function franck.bensusan@gmail.com - 2016-08-17 23:13 -0700
      Re: the IS-A function hughaguilar96@gmail.com - 2016-08-18 11:59 -0700
        Re: the IS-A function hughaguilar96@gmail.com - 2016-08-18 15:11 -0700
          Re: the IS-A function franck.bensusan@gmail.com - 2016-08-18 23:14 -0700
            Re: the IS-A function hughaguilar96@gmail.com - 2016-08-19 01:01 -0700
              Re: the IS-A function franck.bensusan@gmail.com - 2016-08-19 03:14 -0700
                Re: the IS-A function Ron Aaron <rambamist@gmail.com> - 2016-08-19 13:31 +0300
                Re: the IS-A function Raimond Dragomir <raimond.dragomir@gmail.com> - 2016-08-19 03:39 -0700
                Re: the IS-A function franck.bensusan@gmail.com - 2016-08-19 06:49 -0700
                Re: the IS-A function lawrencedo99@gmail.com - 2016-08-19 14:55 -0700
                Re: the IS-A function Paul Rubin <no.email@nospam.invalid> - 2016-08-19 14:57 -0700
                Re: the IS-A function franck.bensusan@gmail.com - 2016-08-20 10:29 -0700
                Re: the IS-A function Ron Aaron <rambamist@gmail.com> - 2016-08-20 20:35 +0300
                Re: the IS-A function Paul Rubin <no.email@nospam.invalid> - 2016-08-20 10:53 -0700
                Re: the IS-A function Julian Fondren <julian.fondren@gmail.com> - 2016-08-20 11:01 -0700
                Re: the IS-A function Paul Rubin <no.email@nospam.invalid> - 2016-08-20 19:36 -0700
                Re: the IS-A function Julian Fondren <julian.fondren@gmail.com> - 2016-08-20 20:15 -0700
                Re: the IS-A function lawrencedo99@gmail.com - 2016-08-21 14:53 -0700
              Re: the IS-A function Cecil Bayona <cbayona@cbayona.com> - 2016-08-19 08:28 -0500
                Re: the IS-A function hughaguilar96@gmail.com - 2016-08-20 19:30 -0700
                Re: the IS-A function Cecil Bayona <cbayona@cbayona.com> - 2016-08-20 22:20 -0500
                Re: the IS-A function hughaguilar96@gmail.com - 2016-08-20 20:50 -0700
                OOP (was: the IS-A function) Ron Aaron <rambamist@gmail.com> - 2016-08-21 07:21 +0300
                Re: the IS-A function Mark Wills <markwills1970@gmail.com> - 2016-08-21 01:42 -0700
                Re: the IS-A function Coos Haak <htrofhc@gmail.com> - 2016-08-21 14:16 +0200
                Re: the IS-A function Mark Wills <markwills1970@gmail.com> - 2016-08-21 11:08 -0700
                Re: the IS-A function Coos Haak <htrofhc@gmail.com> - 2016-08-21 21:25 +0200
                Re: the IS-A function hughaguilar96@gmail.com - 2016-08-21 12:01 -0700
      Re: the IS-A function hughaguilar96@gmail.com - 2016-08-18 17:08 -0700
        Re: the IS-A function hughaguilar96@gmail.com - 2016-08-19 00:29 -0700
          Re: the IS-A function hughaguilar96@gmail.com - 2016-08-28 11:01 -0700
            Re: the IS-A function hughaguilar96@gmail.com - 2016-08-28 14:45 -0700
    Re: the IS-A function Mark Wills <markwills1970@gmail.com> - 2016-08-18 02:22 -0700
      Re: the IS-A function hughaguilar96@gmail.com - 2016-08-18 12:02 -0700
      Re: the IS-A function hughaguilar96@gmail.com - 2016-08-18 18:31 -0700

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