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  2. RPG400-L
  3. May 2002

Re: CALL vs CALLP with EXTPGM

J Michael Smith wrote:
>
> From a performance consideration is there any difference between the two op
> codes.
>
> Given that there is little or no difference, then is the only advantage to
> CALLP the compiler check of the field characteristics.
>

An another important advantage is that if you code CONST on the
parameters, the compiler will sometimes handle the parameter
differences, rather than just give you a message saying they're wrong.
With CONST parameters, you can pass slightly different types (packed vs
zoned, different lengths etc) as well as literals and expressions.

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