diff options
| -rw-r--r-- | Lib/enum.py | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/Lib/enum.py b/Lib/enum.py index 8369631..8d23933 100644 --- a/Lib/enum.py +++ b/Lib/enum.py @@ -784,13 +784,8 @@ class IntFlag(int, Flag): def _high_bit(value): - """return the highest bit set in value""" - bit = 0 - while 'looking for the highest bit': - limit = 2 ** bit - if limit > value: - return bit - 1 - bit += 1 + """returns index of highest bit, or -1 if value is zero or negative""" + return value.bit_length() - 1 if value > 0 else -1 def unique(enumeration): """Class decorator for enumerations ensuring unique member values.""" |