On Tue, 28 Feb 2017 11:21:50 -0600, Tom Marchant wrote: > >>I'm curious because others have said (in this forum?) that earliest PROCs >>had no arguments; all modification was done by overrides. So, at that >>time symbols didn't exist in JCL, neither as PROC formal parameters nor >>in the (relatively recent) SET statment. > >That agrees with the description of Cataloged procedures in the 1967 manual. > And, apparently prior to instream PROCs, there was no PROC nor PEND statement. IIRC, PEND used to be prohibited in library PROCs (why?) Lately, it's allowed. This permits INCLUDEing a library PROC to make it an instream PROC.
Is there anything done with overrides that couldn't nowadays be done as well with arguments/symbols? (But the problem of dangling commas when attributes are nullified would have to be addressed. Most easily by ignoring excess commas.) And symbols could address the deficiencies of overrides when PROC calls are nested. Referback deficiencies persist. Are arguments to outer PROCs available as symbols in nested-called PROCs without being declared as formal parameters in the inner PROC? Thanks, gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
