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In simple programming terms the problems that I have with external
programs versus subprocedures in a service program are twofold.
One, I can't do stuff like this in RPGLE
RealVariable=MySubprocedure(3 * WorkVar);
I have to something like this:
TempVar=3 * WorkVar;
call MySubprogram
parm TempVar
parm RealVariable
Plus I have to convert the above into fixed format.
Also, I have to be concerned with whether or not the subprogram mucked
with TempVar since subprograms don't support CONST.
Two, Since I cannot use the return variable capability of the above I
cannot convert the subprogram into a UDF for use by SQL as in:
http://faq.midrange.com/data/cache/185.html
Rob Berendt
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