class Prime::Generator23 - RDoc Documentation

# 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() click to toggle source
Calls superclass method `Prime::PseudoPrimeGenerator::new`

    # File lib/prime.rb, line 450
    def initialize
      @prime = 1
      @step = nil
      super
    end

### Public Instance Methods

next()
Alias for: succ
rewind() click to toggle source

    # File lib/prime.rb, line 470
    def rewind
      initialize
    end

succ() click to toggle source

    # File lib/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

Also aliased as: next