Re: %Trim

[Paul Tuohy <tuohyp@xxxxxxx>]

Rob,
Buck is on the button re the data structure being initialized, hence, the first
eight positions are initialized to X'40'. If memory serves me correctly ( not on
a machine at the moment ) you can overcome the problem by specifying the INZ
keyword on the DataStructure line, as opposed to specifying it for each field in
the data structure. This means that the individual fields are initialized, as
opposed to the data structure.

HTH

Paul Tuohy

Buck Calabro wrote:

> On Thursday, August 27, 1998 4:36 PM, Rob Berendt [SMTP:rob@dekko.com]
> wrote:
> > Buck,
> >
> > You're right.  I included something in the sample I emailed that I did
> > not have in the actual code.  Try this instead.
> > DRecipientDS      DS
> > D  RecOffSet              1      4B 0
> > D  AddrLen                5      8B 0
> > D  Format                 9     16    INZ('ADDR0100')
> > D  DistrType             17     20B 0 INZ(0)
> > D  Reserved              21     24B 0 INZ(0)
> > D  Recipient             25     99    INZ('rob@dekko.com')
> > C                   Eval      RecOffSet = %Len(%Trim(RecipientDS))
> >  * In the above RecOffSet will be equal to 29 because the first two
> >  * subfields will be dropped.
> >  * Now that RecOffSet has been intialized we will get 37.
> > C                   Eval      RecOffSet = %Len(%Trim(RecipientDS))
> >  * In the following RecOffSet will be equal to 37.  And it would be
> >  * even if it was our first C spec line.
> > C                   Eval      RecOffSet = %Len(%TrimR(RecipientDS))
> >
> > The big difference is the dropping of the INZ keyword on the first two
> > subfields.  That seemed to do the trick.  Without the INZ they get
> > trimmed.  Sorry.  I shouldn't have prettied up the code prior to the
> > first email without testing it.
>
> Ah.  The reason for the difference is that RPG inizialises all data
> structures to *BLANKS (x'40')  The way to override this behaviour is INZ.
>  This DS has the following values when the program starts
> 'bbbbbbbbADDR0100...'  If you specify INZ(0), then the first 2 fields
> become binary zero (x'00') instead of binary 40404040.
>
> Hope that helps.
>
> Buck Calabro
> Commsoft, Albany, NY
> mailto:mcalabro@commsoft.net
>
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