Procedures/SubProcedures

[Jon.Paris@xxxxxxxxxx]

 >> I guess my real question is how to tell the difference between a procedure
and a subprocedure.

Not sure why you want to tell the difference Ron but ....

The difference is one of RPG terminology.  From an ILE perspective they are the
same thing and are called with the same mechanisms.

An RPG "program" compiles to a procedure, and in the V3R1 version there was only
one user defined procedure per compilation unit.  So when they decided to allow
multiple procedures per compilation unit they decided to give them the a
different name and Subprocedures i.e. non-main procedures seemed to fit the
bill.

The primary differences from an RPG perspective are that a subprocedure by
default has automatic variables (i.e. they are created on each call), can
optionally have static variables, and can return a value.  RPG "main" procedures
on the other hand have static storage by default, cannot have automatic storage,
and cannot return a value.


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