Bit length of int or long?

[Michael Hudson]

Dennis Lee Bieber <wlfraed at ix.netcom.com> writes:

> 	How about...
> 
> 	import math
> 
> 
> 	def bitlen(x):
> 		assert x > 0
> 		return math.floor (math.log10(x) / math.log10(2) ) + 1
> 

Because:

>>> def bitlen(x):
...  assert x > 0
...  return math.floor (math.log10(x) / math.log10(2) ) + 1
... 
>>> bitlen(2**10000L)
inf

(which surprised me; I'm sure that used to raise an exception - has
this changed recently?)

Cheers,
M.

-- 
  how am I expected to quit smoking if I have to deal with NT 
  every day                                                -- Ben Raia