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.
# File prime.rb, line 456 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 @prime end