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Bignum#bit_length -> Integer (6180.0)

• 2.1.0
• 2.2.0
• 2.3.0

• インスタンスメソッド

self を表すのに必要なビット数を返します。

...00-1).bit_length # => 10001
(-2**10000).bit_length # => 10000
(-2**10000+1).bit_length # => 10000

(-2**1000-1).bit_length # => 1001
(-2**1000).bit_length # => 1000
(-2**1000+1).bit_length # => 1000

(2**1000-1).bit_length # => 1000
(2**1000).bit_length # =>...

...1001
(2**1000+1).bit_length # => 1001

(2**10000-1).bit_length # => 10000
(2**10000).bit_length # => 10001
(2**10000+1).bit_length # => 10001

@see Fixnum#bit_length...