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

Peter,

Sorry, I missed saying "You are right".  That is the spirit of it.

Thanks!
JS

El vie, 12 dic 2025 a las 1:22, Peter Dow (<[email protected]>) escribió:

>     dcl-s boolVar IND inz;
>
>     boolVar = (a = b ? '1': '0');
>
>     It's your choice.  That is RPG valid code above.
>
> I assume you mean that the DCL-S is valid RPG code, since the request
> was to have a construct like
>
> boolVar = (a = b ? '1': '0');
>
> in RPG.
>
> RPG does not have ==, just =, but in the context of
>
> boolVal = (a = b);
>
> the (a = b) is the same as the C (a == b), correct?
>
> In that case, unless RPG comes up with some operator that distinguishes
> between = (assignment) and == (test for logical equivalence), the
> closest we can get to the C version is
>
> boolVal = (a = b); // the equivalent of the C expression boolVal = (a ==
> b ? '1' : '0');
>
> If the C expression was
>
> resultString = (a == b ? 'Hello' : 'Goodbye');
>
> RPG would require
>
> if a = b;
>      resultString = 'Hello';
> else;
>      resultString = 'Goodbye';
> endif;
>
> and if the C expression was
>
> resultString = (a = b ? 'Hello' : 'Goodbye');
>
> RPG would require
>
> a = b;
> if b <> 0;
>      resultString = 'Hello';
> else;
>      resultString = 'Goodbye';
> endif;
>
> Meaning that the assignment of b to a is unconditional, but the
> assignment of 'Hello' or 'Goodbye' is conditioned upon the value of b
> being non-zero.
>
> --
> *Peter Dow* /
> 909 793-9050
> [email protected]
> /
> On 12/11/2025 6:56 PM, Javier Sanchez wrote:
> > Simple:
> > One line of code. The compiler would make the hard work with the return
> > value.  It is your intellectual work that you want back.  A string?  A
> > floating point? A char()? Whatever.  The single line is clear upon your
> > intention.
> > The == notation is "C", put that away in RPG.  Use only one = sign.
> > The return value is your intellectual work. Say it is an IND:
> > dcl-s boolVar IND inz;
> > boolVar = (a = b ? '1': '0');
> > It's your choice.  That is RPG valid code above.
> >
> > JS
> >
> >
> >
> --
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