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  2. RPG400-L
  3. April 2006

RE: Mod 10 check digit calculation


On Thu, 13 Apr 2006, Sarvapriya_Tripathi@xxxxxxxxx wrote:
[SNIP]

    d mod10           pr            10i 0 ExtProc('MOD10')
    d   string                     100a   const varying

[SNIP]

Nice code.  I have two suggestions, however:
a) The "ExtProc" is unnecesary in this case, since it's the same name as the prototype.
b) Instead of coding the prototype twice, code it once in a /COPY book and just use the one definition. This helps ensure that the prototypes are always the same, protecting you against parameter errors. It also makes it easier to use your routine since you don't have to re-code the prototype every time you call it.

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