Bill Klein wrote:
This is a follow-up on an earlier IBM-MAIN thread.
I thought that it might be interesting AND USEFUL to "document" which
IBM
Enterprise COBOL compiler options can "impact" run-time behavior. By
this I
mean that the same source code will compile "cleanly" with any setting
of these
options but that for programs that COMPLETE their "run" the "output"
might be
different. (I phrase it this way to avoid options that impact "storage"
usage
at compile or run-time. I am also "ignoring" performance differences.).
Looking at the list of options at:
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IGY3PG30/CCON
TENTS
My initial list of "potentially impacting" options is:
- ADV
- CICS (depending on suboptions)
- CODEPAGE
- CURRENCY
- DATEPROC
- DYNAM (only if CANCEL is used)
This impacts runtime behavior whether or not CANCEL is used
- FASTSRT (only if DECLARATIVES are used)
This impacts runtime behavior whether or not DECLARATIVES are used,
I believe
- INTDATE
- NUMPROC
- PGMNAME
I don't see the runtime behavior impact of this
- QUOTE/APOST (figurative constant, not literals)
I don't see the runtime behavior impact of this
- SQL (depending on suboptions)
- SSRANGE (if checking is turned on at run-time)
- THREAD
- TRUNC
- YEARWINDOW
- ZWB
****
Of you "IBM COBOL" types, do you have any opinions on any that I have
missed -
or that I have included that you think do NOT impact run-time behavior?
In some sense, TEST can impact runtime behavior.
ARITH can impact runtime behavior
DLL can impact runtime behavior
OPTIMIZE can impact runtime behavior
OUTDD can impact runtime behavior
RENT can impact runtime behavior (along with DATA)
In some sense, RMODE can impact runtime behavior
So, my opinion, for what it's worth.
Kind regards,
-Steve Comstock
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