RE: GOBACK vs EXIT PROGRAM

["Jon Paris" <Jon.Paris@xxxxxxxxxxxxxx>]

 >> So we can just forget EXIT PROGRAM/STOP RUN and only  use GOBACK, then,
in all programs, without considering whether they are called as main- or
subprograms (or both)?

That's the basic idea.  Obviously there are performance and logical
implications of a program doing a STOP RUN when an EXIT PROGRAM was
expected, but at the lowest level, yes GOBACK will deal with the problem.

If a program is _known_ to be intended for use as a subprogram, I would tend
to still code EXIT ... followed by an "Oh sh*$" routine.  Unless you do this
(and particularly in the case of ILE COBOL and mixed language shops) you
have the potential of creating a performance nightmare and never knowing
about it.  The Run Unit (which = Activation Group for ILE COBOL) will be
going up and down like a yo-yo.  One customer we worked with back in the
early days of ILE COBOL has a subprogram that worked fine from COBOL but
when used from his RPG code took over 20 times longer to run than the OPM
version!!

Jon Paris
Partner400