Mark Dickinson dicki...@gmail.com added the comment:
Indeed, int.bit_length is the way to do this.
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http://bugs.python.org/issue15391
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New submission from anon unluckykit...@mailinator.com:
Many numeric algorithms require knowing the number of bits an integer has (for
instance integer squareroots). For example this simple algorithm using shifts
is O(n^2):
def bitl(x):
x = abs(x)
n = 0
while x 0:
n = n+1
x = x1
Alex Gaynor alex.gay...@gmail.com added the comment:
I think what you're looking for already exists:
http://docs.python.org/dev/library/stdtypes.html#int.bit_length
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Changes by Jesús Cea Avión j...@jcea.es:
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Jesús Cea Avión j...@jcea.es added the comment:
Closing as Invalid. I think that Alex is right.
Anon, if you think this is a mistake, please reopen and argument.
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resolution: - invalid
status: open - closed
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