On 6/6/2018 8:51 AM, Steve Smith wrote:
This has been previously discussed. The main issue (as usual) is
incompatibility with an ancient bug (or feature). Specifically, temporary
dataset names such as DSN=&TMP. That's supposed to be DSN=&&TMP, but for
whatever reason, the single-& version works, unless &TMP is a symbol.
Wow! I confirmed this is an exposure! I never knew!
IBM does not mention the single ampersand being valid temporary data set
name syntax in the description of the DSNAME parameter on the DD
statement and I have previously not seen it used that way.
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.ieab600/iea3b6_Syntax25.htm
This reminds me of the rule in REXX where use of an uninitialized
variable results in the variable name itself being substituted. But,
that is documented behavior. This is just plain wrong.
It might be a good use of the common tracker component (GTZ) to help
identify JCL with such errors. Otherwise, every new symbol added -- to
the system, to a proc, to anything that might have visibility to a job
stream -- can lead to unexpected JCL errors.
--
Phoenix Software International
Edward E. Jaffe
831 Parkview Drive North
El Segundo, CA 90245
http://www.phoenixsoftware.com/
--------------------------------------------------------------------------------
This e-mail message, including any attachments, appended messages and the
information contained therein, is for the sole use of the intended
recipient(s). If you are not an intended recipient or have otherwise
received this email message in error, any use, dissemination, distribution,
review, storage or copying of this e-mail message and the information
contained therein is strictly prohibited. If you are not an intended
recipient, please contact the sender by reply e-mail and destroy all copies
of this email message and do not otherwise utilize or retain this email
message or any or all of the information contained therein. Although this
email message and any attachments or appended messages are believed to be
free of any virus or other defect that might affect any computer system into
which it is received and opened, it is the responsibility of the recipient
to ensure that it is virus free and no responsibility is accepted by the
sender for any loss or damage arising in any way from its opening or use.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
