On Tue, May 12, 2009 at 02:54:29PM +0800, Craig Ringer wrote:
> The Luhn algorithm implemention I posted earlier (upthread) is
> internally consistent and will verify checksums it created, but it is
> actually not a correct implementation of the Luhn algorithm.
This looks like a great candidat
The Luhn algorithm implemention I posted earlier (upthread) is
internally consistent and will verify checksums it created, but it is
actually not a correct implementation of the Luhn algorithm.
The earlier code added the doubled digits directly to the checksum,
rather than adding each digit of
