Re: [FWP] Counting bits from the other end

[Adam Rice <wysiwyg@glympton.airtime.co.uk>]

Quoting Bennett Todd (bet@rahul.net):
> That's stone cool! A quick search suggests that 37 is the smallest n
> for which that trick works for 32-bit words; however, either the
> smallest such divisor for a 64-bit wordsize is _gigantic_, or else
> perl on a 32-bit platform can't compute it with the attached search
> script.

primes 64 | head -1
67

Sometimes Perl is no substitute for a Maths degree :-)

-- 
Adam Rice -- wysiwyg@glympton.airtime.co.uk -- Blackburn, Lancashire, England

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