DSN Length 44?  It is the Key Length on the VTOC and Catalogs, for
starters.  So you would have to have a separate set of volumes for
z/OS 3.0 with backward only compatibility.  And you have to change all
the editing in all the programs, ISPF screens, etc. Since the JES2
OUTPUT statement has a bunch of 60 byte field, that would be my
suggestion.

On Thu, Jun 17, 2021 at 1:42 PM Paul Gilmartin
<[email protected]> wrote:
>
> On Thu, 17 Jun 2021 09:07:35 -0700, Charles Mills wrote:
>
> ><g>
> >
> >Charles
> >
> It's more likely that there be a need to correct a typo, or worse
> an inconsistency, in scattered coded values of π.
>
> Put it in a header file.
>
> Somewhere, IBM supplies a macro that equates a symbol to 44
> for the length of a data set name.  That equated symbol is
> rarely used.  Could it be  changed in thee future?
>
> >-----Original Message-----
> >From: Mark Jacobs
> >Sent: Thursday, June 17, 2021 8:49 AM
> >
> >The primary purpose of the DATA statement is to give names to
> >constants; instead of referring to pi as 3.141592653589793 at every
> >appearance, the variable PI can be given that value with a DATA
> >statement and used instead of the longer form of the constant. This
> >also simplifies modifying the program, should the value of pi change.
> >        ― FORTRAN manual for Xerox Computers
>
> -- gil
>
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-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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