Re: What attributes of a programming language simplify its implementation?

From	gah4 <gah4@u.washington.edu>
Newsgroups	comp.compilers
Subject	Re: What attributes of a programming language simplify its implementation?
Date	2022-10-02 00:11 -0700
Organization	Compilers Central
Message-ID	<22-10-009@comp.compilers> (permalink)
References	<22-09-026@comp.compilers> <22-10-002@comp.compilers> <22-10-004@comp.compilers>

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On Saturday, October 1, 2022 at 6:34:58 PM UTC-7, gah4 wrote:

(snip)

(our moderator wrote)

> [PL/I was a remarkably good language considering what a rush job it was but
> it has plenty of odd things, e.g.

> DCL (I, J, K) CHAR(3);
> I = 1;
> J = 2;
> K = I+J;

> What does K contain? Nope, it contains three spaces because the 1 and 2
> are converted to ' 1' and ' 2', they're converted back to integer,
> added, converted back to to a default size integer string
> like '   3' and string assignment truncates from the right. -John]

Yes.

In the DO loop example, the first try was with K='100';
but the second had three blanks before the 100.  That way the
string comparison works.

And the SQRT is done in double precision.

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What attributes of a programming language simplify its implementation? Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2022-09-30 12:46 +0100
  Re: What attributes of a programming language simplify its implementation? Martin Ward <martin@gkc.org.uk> - 2022-10-01 15:56 +0100
    Re: What attributes of a programming language simplify its implementation? gah4 <gah4@u.washington.edu> - 2022-10-01 17:05 -0700
      Re: What attributes of a programming language simplify its implementation? gah4 <gah4@u.washington.edu> - 2022-10-02 00:11 -0700
      Re: What attributes of a programming language simplify its implementation? "Robin Vowels" <robin51@dodo.com.au> - 2022-10-03 12:34 +1100
        Re: What attributes of a programming language simplify its implementation? robin51@dodo.com.au - 2022-10-03 15:59 +1100
          Re: What attributes of a programming language simplify its implementation? gah4 <gah4@u.washington.edu> - 2022-10-03 12:28 -0700
    Re: What attributes of a programming language simplify its implementation? Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2022-10-02 01:21 +0100
  Re: What attributes of a programming language simplify its implementation? Thomas Koenig <tkoenig@netcologne.de> - 2022-10-08 22:44 +0000
    Re: What attributes of a programming language simplify its implementation? "minf...@arcor.de" <minforth@arcor.de> - 2022-11-14 05:14 -0800
      Re: What attributes of a programming language simplify its implementation? gah4 <gah4@u.washington.edu> - 2022-11-15 06:09 -0800
    RE: Re: What attributes of a programming language simplify its implementation? Roger L Costello <costello@mitre.org> - 2022-11-15 11:52 +0000
      Re: Re: What attributes of a programming language simplify its implementation? <minforth@arcor.de> - 2022-11-15 09:48 -0800
        Re: Re: What attributes of a programming language simplify its implementation? RPN? gah4 <gah4@u.washington.edu> - 2022-11-15 16:11 -0800
          Re: Re: What attributes of a programming language simplify its implementation? RPN? "minf...@arcor.de" <minforth@arcor.de> - 2022-11-16 04:54 -0800
            Re: Re: What attributes of a programming language simplify its implementation? RPN? "minf...@arcor.de" <minforth@arcor.de> - 2022-11-16 05:39 -0800
          Re: Re: What attributes of a programming language simplify its implementation? RPN? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2022-11-16 18:12 +0000

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