Re: Mod 10 check digit calculation

["Art Tostaine, Jr." <atostaine@xxxxxxxxx>]

EVERYONE has their own little version of mod 10 calculation.  Like an EDI
214 is standard.  Right!

here's an old version that doesn't use cool language features, and it works
only on 19 characters

d data01          DS
d  i19                    1     19  0 dim(19)
d  inp19                  1     19
d  o20                    1     20  0 dim(20)
d  out20                  1     20
Dstep1            s              3  0
Dstep2            s              3  0
Dstep3            s              3  0
Dstep4            s              3  0
Dstep5            s              1  0
Dx                s              2  0
c     *entry        plist
c                   parm                    pp19             19
c                   parm                    pp20             20
c                   eval         inp19=pp19
c
 **
 ** step 1 add up all odd digits
 **
c                   eval      x = 1
c                   eval      step1 = 0
c
c                   dow       x < 20
c                   eval      step1 = step1 + i19(x)
c                   eval      x = x+2
c                   enddo
c                   eval      step1 = step1 * 3
 **
 ** step 2 add up all even digits
 **
c                   eval      x =    2
c                   eval      step2= 0
c
c                   dow       x <= 18
c                   eval      step2= step2+ i19(x)
c                   eval      x = x+2
c                   enddo
c
 **
 ** step 3 add up step 1 & step 2
 **
c                   eval      step3 = step1 + step2
 **
 ** step 4 round to nearest ten
 **
c     step3         div       10            wk04              4 0
c                   mvr                     wk01              1 0
c                   if        wk01 <> 0
c                   eval      step4 = step3 + 10
c                   move      '0'           step4
c                   else
c                   eval      step4 = step3
c                   endif
 **
 ** step 5 subtract total from rounded number
 **
c                   eval      step5 = step4-step3
c                   eval      o20(20)=step5
 **
c                   eval      pp20 = out20
c                   eval      *inlr = '1'
c                   return

On 4/12/06, Michael_Schutte@xxxxxxxxxxxx <Michael_Schutte@xxxxxxxxxxxx>
wrote:
>
> You want a mod 10 calculation of a number right?
>
>
> 11 mod 10 = 1
>
> %Rem(11:10) = 1
>
> Am I missing something?
>
> Michael Schutte
> Work 614-492-7419
> email  michael_schutte@xxxxxxxxxxxx
>
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--
Art Tostaine (GMAIL)