[Haskell-cafe] bitSize

[Gabor Greif]

Am 25.08.2011 um 19:57 schrieb Andrew Coppin:

> Is there a way to actually determine how many bits are in an Integer?


occupiedBits :: Integer -> Int
occupiedBits = (+1) . truncate . logBase 2 . (+1)

Caveat: untested :-)

Cheers,

	Gabor
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