Re: RPGII to RPG IV

[Douglas Handy <dhandy@xxxxxxxxx>]

Tommy,

>What I was referring to was that you
> can compile all the programs as RPGIII and use CL or OCL to run them.

Not all RPG II source can simply be recompiled as RPG III.  Aside from
differences like things which don't even compile (for example KEYBORD
or CRT device F specs), you have more subtle things which do compile
but act different.  Such as numeric fields used in PARM statements. 
In RPG II, those will be zoned decimal fields while in RPG III they
will be packed decimal unless you add them to a DS and declare them as
packed.  And if the RPG II source already had the field in some other
DS, you can't even do that.

There are other examples, such as decimal data error handling etc but
suffice it to say you shouldn't just arbitrarily change the source
type and mass compile appliations wholesale without understanding the
caveats involved.

Doug