RE: Allocate field with options(*nopass :*omit)

If you are concerned about copying the parameter value, what about:


      p example         B                   export
      d                 pi            10i 0 opdesc
      d  piParm1                   32767    const
 options(*varsize:*nopass:*omit)
      d  piParm2                   32767    const
 options(*varsize:*nopass:*omit)

      d  p1Exists                        N
      d  p2Exists                        N

/free
  if %parms() >= 1;
      p1Exists = *on;
  endif;

  if %parms() = 2;
      p2Exists = *on;
  endif;


 if        p1Exists
     .... Do something
 else
     .... Do something else
 endif

 if        p2Exists
     .... Do something
 else
     .... Do something else
 endif
/end-free

Hope this helps,
Adam

P.S. - Sorry if font is small ... I'm trying to figure out why this 
happens.


rpg400-l-bounces@xxxxxxxxxxxx wrote on 30/08/2006 10:24:02 AM:

I might be wasting my time to gain some insignificant amount of
efficiency.  Here is my thought: Using below as an example, won't it be
a waste of cpu to have to copy those two big optional fields to
temporary fields for every single execution?

     p example         B                   export
     d                 pi            10i 0 opdesc
     d  piParm1                   32767    const
options(*varsize:*nopass:*omit)
     d  piParm2                   32767    const
options(*varsize:*nopass:*omit)

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Peter Levy
Sent: Wednesday, August 30, 2006 8:56 AM
To: RPG programming on the AS400 / iSeries
Subject: Re: Allocate field with options(*nopass :*omit)

Unfortunately what you want to do can't really be done. Given that your
parameter is a constant you can only have a local variable with a
default value (as has already been suggested). If you changed your
parameter by removing the "const" keyword you could do something like
this:

     P test            B

     D test            pi
     D  piParm1                      10a   options(*nopass)

     D pi              s                   like(piParm1) based(piPtr)
     D piPtr           s               *   inz(*null)

     C                   if        %parms() >= 1
     C                   eval      piPtr = %addr(piParm1)
     C                   else
     C                   alloc     %size(piParm1)piPtr
     C                   endif

     C                   if        pi = *blank
     C*                    .... Do something
     C                   else
     C*                    .... Do something else
     C                   endif

     C                   if        %parms() < 1
     C                   dealloc(n)              piPtr
     C                   endif

     p test            E

However it's hardly worth the effort. Better to use the local variable.

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