Re: Why you shouldn't be afraid to use VARCHAR in RPGLE

Marco Facchinetti <marco.facchinetti-kthxv0ud/[email protected]>
Newsgroups gmane.comp.lang.as400.rpg
Message-ID <CAMsgu4oxpuPiJ2LboauRcLOiyrGAxBBswMz_nVLBK=xEer=ZjQ@mail.gmail.com>
Hi Daniel

You can have a single (overloaded) function if instead of using the return
value you pass the result (char/date/time/ts) as a parameter by reference.
Of course you need a separate function for numbers.


Best regards

--
Marco Facchinetti

Mr S.r.l.

Tel. 035 962885
Cel. 393 9620498

Skype: facchinettimarco


Il giorno sab 13 dic 2025 alle ore 19:06 Daniel Gross <[email protected]> ha
scritto:

> Hi Birgitta,
>
> > Am 13.12.2025 um 18:11 schrieb Birgitta Hauser <Hauser-bRAHsVz2yv4TVIZRl6KS/[email protected]>:
>
> > %IF does not (yet?!) exist.
> > But it would be easy to code ... and for different data types the
> function can be overloaded.
>
> Well - yes and no - of course you can overload the input parameters - but
> until now, it is impossible to also override the return value type. All
> procedures (functions) in a override have to return the exact same type. So
> you would have to create different functions vor each return type.
>
>         ifChar( 1 = 1 : 'Hello' : 'World' );
>         ifInt( 'Y' = 'N' : 1 : 0 );
>
> ... and so on. So a %BIF would be much easier, as it could return an
> arbitrary type.
>
> Regards,
> Daniel
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