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by bschaefer
5869 days ago
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This is a performance optimization for common (read: integer) numbers: http://ruby-doc.org/core/classes/Fixnum.html >> ((1 << 30) - 1).class
=> Fixnum
>> ((1 << 30)).class
=> Bignum
>> ((1 << 30) - 1).object_id
=> 2147483647
>> ((1 << 30) - 1).object_id
=> 2147483647
>> (1<<30).object_id
=> 166070
>> (1<<30).object_id
=> 161200
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