In <[email protected]>, on 10/12/2013
at 08:40 AM, Charles Mills <[email protected]> said:
>Is there any reason that a PDS, RECFM=U or Vxx with half-track or
>4K or whatever records or blocks, could not store *exactly* the
>same stream of bytes as a UNIX file, and with no reliance on any
> "special directory structure"?
No, but that's the wrong question. The correct question is whether
doing so would accomplish what you want, and the answer is a
resounding no.
>I am too lazy to do the experiment, but I'll bet you could take a
>COBOL 5 or other program object in a UNIX file, copy with some
>"ignorant of any special details" program from UNIX to a PDS
>member such as I describe above, copy it back to a UNIX file, and
>have it be indistinguishable from the original program object --
>including being executable?
Yes, assumong that you make it executable.
>If so, does it not prove that there is no technological reason
>that a program object could not reside in a PDS?
No, unless it was FBS. More precisely, the performance would be grossly
unacceptable.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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