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Thanks to all who responded.  This list is certainly a
life saver.

Happy Holidays to all.

Rich
--- Scott Klement <klemscot@klements.com> wrote:
>
>
> On Sat, 1 Dec 2001, Richard Reeve wrote:
>
> > All,
> >
> >      I am having a problem with an array in RPG
> > (caused mainly by my ignorance where RPG is
> concerned
> > since I am a COBOL kind of guy!).  What I am
> trying to
> > do is to read a file and load an array that will
> have
> > 2 elements - a legacy hold code (2 positions) and
> a
> > MHS hold code (2 positions).  I then want to do a
> > lookup on this array by MHS hold code and find the
> > corresponding legacy hold code (later in the
> program).
> >
> >      Could someone be kind enough to coach me
> through
> > this?  I will be forever greatful.
> >
> > Rich
> >
>
> Here's the way that I'd do something like that...
>
>
>      FHOLDCODES IF   E           K DISK
>
>      D MHS             S              2A   DIM(500)
>      D LEG             S              2A   DIM(500)
>      D ArraySize       S             10I 0
>      D Index           S             10I 0
>      D Result          S              2A
>      D code            S              2A
>
>       ** Sample of loading the arrays from a file
>       **
>       **  This assumes that you want to load the
> whole file, and
>       **  that the two fields in the file are
> "mhs_from_file" and
>       **  "legacy_from_file".
>       **
>       **  You'll have to adjust it to fit the
> details of your app.
>
>      c     *start        setll     HOLDCODES
>      c                   read      HOLDCODES
>
>      c                   dow       not
> %eof(HOLDCODES)
>      c                   eval      ArraySize =
> ArraySize + 1
>      c                   eval      MHS(ArraySize) =
> mhs_from_file
>      c                   eval      LEG(ArraySize) =
> legacy_from_file
>      c                   read      HOLDCODES
>      c                   enddo
>
>
>
>       **
>       **  Here is a sample of doing a lookup:
>       **
>       **     The output of this will be that "Index"
> will be set to the
>       **     position in the array of the matching
> code, and indicator
>       **     10 will be on when the lookup succeeds,
> or off otherwise.
>       **
>       **     Note that the "10" is in the "Eq"
> position.  This means we
>       **      are only looking up items in MHS that
> are the same as
>       **      the contents of the "code" variable.
>       **
>      C                   eval      Index = 1
>      c     code          lookup    MHS(Index)
>                      10
>
>      c                   if        *in10 = *Off
>      C*  ... no matching code found ...
>      c                   else
>      c                   eval      result =
> LEG(Index)
>      c                   endif
>
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=====


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