> Region default STORAGE(00,NONE,00,0) >The third >parameter set to zero is a killer, get rid of it! The consequence of >using it >Is that all automatic storage in a procedure will be set to binary >zeroes upon >each entry to the procedure, and if you've got deeply nested >procedures with >lots of local variables, you will suffer, big, big, big time! If >you need >specific variables to be initialised use INIT(whatever) on those, and >only >those.
While what you state is all true, its not a good advice to change that without proper testing, because they might have old (e.g. COBOL) LE programs, that rely on the storage being zero'd out by LE, because they do not have INIT or VALUES clauses and programs cannot be changed in time to allow the third parm to be set to something other than 00. For example VS COBOL used to have the option WSCLEAR, which did not require initializing variables, I don't know about pre Enterprise Versions of PL/I. Denis. -----Original Message----- From: Robert Prins <robert.ah.pr...@gmail.com> To: IBM-MAIN <IBM-MAIN@LISTSERV.UA.EDU> Sent: Tue, Feb 24, 2015 2:54 pm Subject: Re: Enterprise PL/1 performance ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
