how about a tr/// based solution: 
local $_ = $code;
$check = tr/1/1/ + 6*tr/2/2/ + tr/3/3/ +
         12*tr/4/4/ + tr/5/5/ + 18*tr/6/6/ +
         tr/7/7/ + 24*tr/8/8/ + tr/9/9/;

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In reply to Re: Summing the odd/even digits of a larger number (for upc check digits)...a better way? by salva
in thread Summing the odd/even digits of a larger number (for upc check digits)...a better way? by EvanK

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