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  • Subject: RE: %Trim
  • From: Buck Calabro <mcalabro@xxxxxxxxxxxx>
  • Date: Thu, 27 Aug 1998 17:59:46 -0400
  • Organization: commsoft

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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