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Groups > comp.lang.forth > #39536

Re: Extendable structure with inspection

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: Extendable structure with inspection
Date 2015-06-03 06:02 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2015Jun3.080200@mips.complang.tuwien.ac.at> (permalink)
References <f17afc56-0260-499e-8314-7495c6ce449a@googlegroups.com>

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humptydumpty <ouatubi@gmail.com> writes:
>HEX            \ Test for independence of 'Base'
>struct POS
>  cell field X
>  cell field Y
>end-struct
>DECIMAL

This does not test independence of BASE, because "4" or "8" are the
same in HEX and DECIMAL, and no bigger numbers are occuring here.

Your fix for the "+" lookup issue looks good, and should work also for
the case when the FORTH-WORDLIST is not in the search order.

However, I found a hole in your BASE workaround:

HEX
struct POS
DECIMAL
  10 cells field X
  5 cells field Y
end-struct

0 POS Y 10 cells = . \ should be true, but isn't.

That's fixable, but it shows that using EVALUATE is tricky.

BTW, I think the word you mean is "introspection", although I am not
sure that it is appropriate here, either.

- 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
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Thread

Extendable structure with inspection humptydumpty <ouatubi@gmail.com> - 2015-06-02 13:29 -0700
  Re: Extendable structure with inspection anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-06-03 06:02 +0000
    Re: Extendable structure with inspection humptydumpty <ouatubi@gmail.com> - 2015-06-03 08:27 -0700
  Re: Extendable structure with inspection humptydumpty <ouatubi@gmail.com> - 2015-06-03 11:30 -0700
    Re: Extendable structure with inspection Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-06-03 20:54 -0700
      Re: Extendable structure with inspection "Alex McDonald" <blog@rivadpm.com> - 2015-06-04 09:11 +0100
        Re: Extendable structure with inspection Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-06-04 04:43 -0700
          Re: Extendable structure with inspection "Alex McDonald" <blog@rivadpm.com> - 2015-06-04 20:21 +0100
            Re: Extendable structure with inspection Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-06-04 23:23 -0700
              Re: Extendable structure with inspection "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-06-05 03:40 -0400
              Re: Extendable structure with inspection "Alex McDonald" <blog@rivadpm.com> - 2015-06-05 15:31 +0100
                Re: Extendable structure with inspection Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-06-05 08:48 -0700
                Re: Extendable structure with inspection "Alex McDonald" <blog@rivadpm.com> - 2015-06-05 18:10 +0100
                Re: Extendable structure with inspection albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-06-06 10:46 +0000
                Re: Extendable structure with inspection hughaguilar96@gmail.com - 2015-06-05 17:53 -0700
                Re: Extendable structure with inspection albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-06-06 10:56 +0000
                Re: Extendable structure with inspection anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-06-06 16:00 +0000
                Re: Extendable structure with inspection hughaguilar96@gmail.com - 2015-06-06 19:35 -0700
                Re: Extendable structure with inspection "Alex McDonald" <blog@rivadpm.com> - 2015-06-07 10:51 +0100
                Re: Extendable structure with inspection Bernd Paysan <bernd.paysan@gmx.de> - 2015-06-08 23:24 +0200
                SIZE RfD: Re: Extendable structure with inspection anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-06-09 07:56 +0000
                Re: Extendable structure with inspection "Alex McDonald" <blog@rivadpm.com> - 2015-06-09 12:09 +0100
                Re: Extendable structure with inspection Bernd Paysan <bernd.paysan@gmx.de> - 2015-06-09 23:25 +0200
              Re: Extendable structure with inspection "Elizabeth D. Rather" <erather@forth.com> - 2015-06-05 07:53 -1000
                Re: Extendable structure with inspection hughaguilar96@gmail.com - 2015-06-05 17:34 -0700
      Re: Extendable structure with inspection humptydumpty <ouatubi@gmail.com> - 2015-06-05 00:40 -0700
  Re: Extendable structure with inspection humptydumpty <ouatubi@gmail.com> - 2015-06-10 12:16 -0700

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