Take a look at Re^8: Faster Luhn Check Digit Calculation? (Ignore this!) for a simpler and faster (but not exhaustively tested) algorithm.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". The enemy of (IT) success is complexity.
In the absence of evidence, opinion is indistinguishable from prejudice. Suck that fhit

In reply to Re^12: Faster Luhn Check Digit Calculation? by BrowserUk
in thread Faster Luhn Check Digit Calculation? by kschwab

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