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Denis,

The various system APIs (QWCRDTAA included) check the error code for a
valid Bytes Provided value where Bytes Provided is defined as a 4-byte
binary value.  Your attached example shows the Error Code as being
defined as a 1-byte character field though.  You should define it as
a *CHAR 4 and then CHGVAR VAR(%BIN(&ERR)) VALUE(0) assuming you want
errors returned as exceptions.

Why this executed properly on V4R2 is the question in my mind.  It might
be some difference in data alignment on CISC vs RISC, or a difference in
storage initialization across CISC/RISC, or who knows what.  In any case
though, the sample as imbedded in the note is coded incorrectly for either
release.

Bruce Vining

>
>Hello all,
>
>I needed to extract the defined length of a data area inside a program.
>To do that, I used the retrieve data area(QWCRDTAA) API. I wrote a CLLE
>to call the API and to retrieve the value from the return buffer.
>Everyting is OK. This was developped on a V4R2 machine.
>
>I moved the code on a V3R2 machine and now i get the error CPF3CF1
>"Error code parameter not valid. ". I checked the manual and the API
>has not changed. I recompile everyting but no change. The message
>speaks of the error code parameter, i tried different length (from 1 to
>200 bytes), but still no chance.
>
>Here is some extract of the code i used:
>
>...
>DCL        VAR(&QUAL)       TYPE(*CHAR) LEN(20)
>DCL        VAR(&REC)        TYPE(*CHAR) LEN(2000)
>DCL        VAR(&LREC)       TYPE(*CHAR) LEN(4)
>DCL        VAR(&STR)        TYPE(*CHAR) LEN(4)
>DCL        VAR(&LEN)        TYPE(*CHAR) LEN(4)
>DCL        VAR(&ERR)        TYPE(*CHAR) LEN(1)
>...
>  CHGVAR     VAR(%BIN(&LREC)) VALUE(2000)
>  CHGVAR     VAR(%BIN(&STR)) VALUE(-1)
>  CHGVAR     VAR(%BIN(&LEN)) VALUE(1)
>  CALL       PGM(QWCRDTAA) PARM(&REC &LREC &QUAL &STR +
>               &LEN &ERR)
>...
>
>Does anybody have any idea why this does no work in V3R2?
>
>Denis Robitaille
>

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