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Re^2: Efficient bit counting with a twist.by BrowserUk (Patriarch) |
on Jan 28, 2013 at 14:00 UTC ( [id://1015707]=note: print w/replies, xml ) | Need Help?? |
Note that that sequence of unpack/pack/unpack achieves exactly the same thing as AnomalousMonk's unpack "%32b$p". But the latter avoids turning a 500MB string into a 4 billion element list of 1s and 0s before converting it back to the 500MB string; which is what that sequence of unpack/pack/unpack does. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
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