class Prime::Generator23
Generates all integers which are greater than 2 and are not divisible by either 2 or 3.
This is a pseudo-prime generator, suitable on checking primality of an integer by brute force method.
Public Class Methods
new()
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Calls superclass method
Prime::PseudoPrimeGenerator.new
# File lib/prime.rb, line 346 def initialize @prime = 1 @step = nil super end
Public Instance Methods
rewind()
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# File lib/prime.rb, line 366 def rewind initialize end
succ()
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# File lib/prime.rb, line 352 def succ if (@step) @prime += @step @step = 6 - @step else case @prime when 1; @prime = 2 when 2; @prime = 3 when 3; @prime = 5; @step = 2 end end return @prime end
Also aliased as: next