I'll look into it when I have the time.
Dale Miller wrote:
Mr. Poncelet said "We are arguing semantics". Yes, computer language
statements have syntax requirements and properly-written statements
have semantics associated with them. The language in the JCL
Reference Manual specifically refers to the relative priority of
information provided in the program DCB vs the DD/JFCB vs the DSCB,
as is attested by the section title in the manual. The actual
semantics of the OPEN statement are more complex.
Mr. Poncelet argues that his meaning of "override" is the correct
one. I would go with the meaning of "override" in the documentation,
and as I used it. If my manager sends me an message telling me to do
something, I may (with risks) override his wishes by doing something
different, but that does not mean that I rewrote his message. The
actual semantics of OPEN are that the "DCB" attributes in the DSCB
are NOT rewritten on an OPEN for input.
Mr. Poncelet demanded a verifiable example. I provided one. Read a
member of a PDS with IDCAMS PRINT with a DD specifying
"RECFM=U,BLKSIZE=32760" This works, and does NOT update the DSCB.
Dale Miller
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
