Thomas Berg wrote:
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Från: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] För Howard Brazee
Skickat: den 14 november 2007 17:34
Till: [email protected]
Ämne: Re: SV: SV: COBOL COPY statement w REPLACING...
On 13 Nov 2007 10:33:54 -0800, [EMAIL PROTECTED] (Thomas Berg) wrote:
How many copy members have you created designed for the REPLACING
option?
None. (The "new" COPY's must be backwards compatible with
old programs.)
Old programs don't use new COPY statements unless they are modified to
do so.
But future programs will.
Old programs that are recompiled get the "new" copys/versions.
And fails in compilation if they contains the ":tag:" format
(if they - as I mentioned - are not using REPLACING).
And that is not acceptable.
Thomas
You keep saying that ("that is not acceptable"), and I keep
wondering: why not? Sometimes things must change. IBM has
done a pretty amazing job in supporting old code with no
changes; code that was written and linked over 30 years
ago will likely still run today with out being re-compiled
and re-bound. Try that on Windows or UNIX.
But if you want to use new features, you likely need to
re-write, re-compile, re-bind. With some careful planning
you can produce code that will run without more modification
(unless you want to use more new features) for 30+ more
years.
But nothing is free. I thought Bill Klein's suggestion was
pretty clever and workable. But obviously we are not seeing
the line between "acceptable" and "not acceptable" in the
same way your user is.
Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
303-393-8716
http://www.trainersfriend.com
z/OS Application development made easier
* Our classes include
+ How things work
+ Programming examples with realistic applications
+ Starter / skeleton code
+ Complete working programs
+ Useful utilities and subroutines
+ Tips and techniques
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