Re: OS Design thinking in objects?

From	Richard Heathfield <rjh@cpax.org.uk>
Newsgroups	comp.programming
Subject	Re: OS Design thinking in objects?
Date	2019-07-04 19:15 +0100
Organization	Fix this later
Message-ID	<qflfnv$gdk$1@dont-email.me> (permalink)
References	<77714daf-c2c3-4bc0-b547-5bd2939c562e@googlegroups.com> <qfhqd9$2gl$1@gioia.aioe.org> <664449a1-9663-4f87-93fb-c0d2782f8957@googlegroups.com>

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On 03/07/2019 22:43, G G wrote:
<snip>
> funny to me the counting starting at 0 has been
> a major cause of errors in the lang forever instead of making that small change
> they insist people will get use to it. of they will, but not eliminate the cause
> to start with.

Fortran and COBOL are 1-based, with the result that array indexing code 
in these languages tends to be clumsy and awkward.

Given that p points to (contains the address of the beginning element 
of) an array, it is very natural and convenient to address other members 
of that array using p + offset, and clearly the beginning element has 
offset 0.

If you label the elements using 1-based notation, 1, 2, 3 etc, then 
somewhere down the line you have to subtract one from the label to get 
the offset, which is inefficient and unnecessary.

But if you want to use Fortran or COBOL, nobody's stopping you.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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OS Design thinking in objects? G G <gdotone@gmail.com> - 2019-07-02 16:12 -0700
  Re: OS Design thinking in objects? "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2019-07-03 10:52 +0200
    Re: OS Design thinking in objects? Horizon68 like Menz <cdalten@gmail.com> - 2019-07-03 05:16 -0700
      Re: OS Design thinking in objects? Horizon68 like Menz <cdalten@gmail.com> - 2019-07-03 05:17 -0700
      Re: OS Design thinking in objects? G G <gdotone@gmail.com> - 2019-07-03 14:45 -0700
        Re: OS Design thinking in objects? Horizon68 like Menz <cdalten@gmail.com> - 2019-07-04 16:25 -0700
    Re: OS Design thinking in objects? G G <gdotone@gmail.com> - 2019-07-03 14:43 -0700
      Re: OS Design thinking in objects? nobody@example.org (Scott) - 2019-07-04 17:45 +0000
      Re: OS Design thinking in objects? Richard Heathfield <rjh@cpax.org.uk> - 2019-07-04 19:15 +0100

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