Sha256: e776d4839787d70b6602497f5d137d53ca9d88ceaedd76ccab371522a6ac1d99
Contents?: true
Size: 531 Bytes
Versions: 10
Compression:
Stored size: 531 Bytes
Contents
require "aruba/aruba_path"
# Aruba
module Aruba
# Contracts
module Contracts
# Is value power of two
class IsPowerOfTwo
# Check value
#
# @param [Integer] value
# The value to be checked
def self.valid?(value)
# explanation for algorithm can be found here:
# http://www.exploringbinary.com/ten-ways-to-check-if-an-integer-is-a-power-of-two-in-c/
value.positive? && (value & (value - 1)).zero?
rescue StandardError
false
end
end
end
end
Version data entries
10 entries across 10 versions & 3 rubygems