The user-replaceable conversion program

This section describes the user-replaceable data conversion program.

User-named conversion programs
You can replace DFHUCNV, the default user-replaceable conversion program, by one or more user-named conversion programs.
Input to DFHUCNV
The first statement in the supplied version of DFHUCNV is a DFHCNV TYPE=DSECT macro, which generates DSECTs that describe the parameter list and the conversion template.
Supplied user-replaceable conversion program
The supplied version of DFHUCNV checks for a resource type of TS. If it finds one, it scans down the passed template looking for fields defined with a type in the user-data range. If any are present, DFHUCNV converts them as characters; you can rewrite the conversion code to your own requirements.

Parent topic: Developing system programs