On Tue, 15 Jun 2021 18:06:53 -0400, Bob Bridges wrote: > ... >3) ... I include checks for file-not-found, > Of course.
> empty datasets, . > Rather, I consider that a routine boundary condition, to be handled by extrapolation. For example, Linkage Editor accepted empty SYSLIN, did nothing, and exited with RC=0. Some of my scripts depended on that orderly beehavior. Binder, given empty SYSLIN attempts to create an invalid program object and terminates with severe error status. I needed to add code to those scripts to bypass the link edit step when SYSLIN is empty. I don't consider the performance gain worth even the minimal added complexity. I once dealt with a (bubble) sort routine coded by a co-worker that program checked on single-record input. A check for that should be the responsibility of the function, not the caller. Usually no such explicit check is necessary if loop termination condition is chosen correctly. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
