[Info-vax] capture program output into a symbol ?

[Hein RMS van den Heuvel]

On Apr 18, 11:58 am, David Mathog <dmat... at gmail.com> wrote:
> On Apr 18, 5:11 am, Pierre <pierre.... at gmail.com> wrote:
>
> > hi,
>
> > I use BC to do floating point calculation in DCL. for ex:
> > [http://antinode.info/dec/sw/bc.html]
:
> and one of the modifications was that the first 10 results were
> automatically stored in a symbol ICALC_OUT so that DCL could get at
> them.

Might want to re-port 'bc' to do just that.

Pierre,

Is it a hard requirement to use 'bc', perhaps to reuse prior work?
Or will any floating point package do?
If the latter, consider icalcV as David suggests:

 - http://decuslib.com/Freeware/freewarev80/icalcv/
 - http://www.digiater.com/openvms/freeware/v80/icalcv/

Or in a pinch PERL will do the job

$ perl -e "$ENV{RESULT} = sprintf qq(%.7f), 1/7"
$ show symb result
%DCL-W-UNDSYM, undefined symbol - check validity and spelling
$ show log  result
   "RESULT" = "0.1428571" (LNM$PROCESS_TABLE)
$
$ define PERL_ENV_TABLES CLISYM_LOCAL
$ perl -e "$ENV{RESULT} = sprintf qq(%.7f), 100/81"
$ show symb result
  RESULT = "1.2345679"

fwiw,
Hein

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