• Subject: Re: Using EXTNAME
  • From: boldt@xxxxxxxxxx
  • Date: Thu, 21 Jan 1999 14:11:09 -0500



Joe Teff wrote:
>I cannot find anywhere in the books where is says what types of files can
be
>used for the EXTNAME keyword. I have a *PRTF named WPRTCTL with
>several formats, one of which is named DETAIL. I have the following
D-specs
>in my program:
>
>   D PRTDS            E   DS    ExtName(WPRTCTL:DETAIL)
>   D                            Prefix(ds_)
>   D                            Occurs(500)
>   D                            Inz
>
>I get the following message when I compile the program:
>
>    *RNF3530     Data structure PRTDS has no valid subfields
>
>Can you only use physical files for this? Any help will be appreciated.

Externally described data structures bring in only
the input capable fields from the record.  So, if
your printer file had some input capable fields, you
could use it.

Although we don't limit the type of file you can use,
physical files are obviously preferred.  In particular,
the new V4R4 function INZ(*EXTDFT) works only for
physical files.

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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