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From: gah4 <gah4@u.washington.edu>
Newsgroups: comp.compilers
Subject: Re: What attributes of a programming language simplify its implementation?
Date: Sun, 2 Oct 2022 00:11:53 -0700 (PDT)
Organization: Compilers Central
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Keywords: PL/I, history
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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.