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Merge pull request #674 from decanus/patch-19

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Update is_power_of_two to not use log2
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Danny Ryan 2019-02-22 07:11:46 -07:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -1028,10 +1028,7 @@ def is_power_of_two(value: int) -> bool:
""" """
Check if ``value`` is a power of two integer. Check if ``value`` is a power of two integer.
""" """
if value == 0: return (value > 0) and (value & (value - 1) == 0)
return False
else:
return 2**int(math.log2(value)) == value
``` ```
### `int_to_bytes1`, `int_to_bytes2`, ... ### `int_to_bytes1`, `int_to_bytes2`, ...