Problems with CEE date APIs

Hello,

I am trying to write a program to calculate the last Friday of the month.

I decided to use the CEE date APIs in a ILE RPG program.

My problem is that the CEEDAYS API will only work if I place a DSPLY
directly after it! This is obviously not desirable.

I have found this to be the case at both V3R2 and V4R4.

Can anybody see what I am doing wrong?

Many thanks

Alan

Source code follows:

     Hdatedit(*ymd)

     Ddate             s               d   datfmt(*iso)

     DDayNumber        s              9b 0 inz
     DLilDate          s              9b 0 inz
     DDateFmt          s             35a   inz('YYYY-MM-DD')
     DDateCvt          s             35a
     Dfc               s             35a

     D                 ds
     Dwrkdate                          d   datfmt(*iso)
     D dd                             2a   overlay(wrkdate:9)
     D wrkdate2                      10a   overlay(wrkdate:1)

     /*---------------------------------------------------------------------
     /* Calculation Specifications
     /*---------------------------------------------------------------------
      * get current date
     C                   move      *date         wrkdate

      * go to first day of next month
     C                   eval      dd = '01'
     C                   adddur    1:*m          wrkdate

      * go to last day of this month
     C                   subdur    1:*d          wrkdate

      * get day of week
     C                   callb(d)  'CEEDAYS'
     C                   parm      wrkdate2      DateCvt
     C                   parm                    DateFmt
     C                   parm                    LilDate
     C                   parm                    fc

     C     '>>>Help<<<'  dsply

     C                   callb(d)  'CEEDYWK'
     C                   parm                    LilDate
     C                   parm                    daynumber

      * get last Friday of month
     C                   if        daynumber < 6
     C                   eval      daynumber = daynumber + 7
     C                   endif
     C                   if        daynumber > 6
     C                   eval      daynumber = daynumber - 6
     C                   subdur    daynumber:*d  wrkdate
     C                   endif

      * return date

     C     'Last Fri is' dsply                   wrkdate2

     C                   eval      *inlr = *on

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