Class: Prime::EratosthenesGenerator

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, `PseudoPrimeGenerator`
Instance Chain: self, `PseudoPrimeGenerator`, Enumerable
Inherits:	Prime::PseudoPrimeGenerator Object Prime::PseudoPrimeGenerator Prime::EratosthenesGenerator
Defined in:	lib/prime.rb

Overview

.new

#upper_bound, #upper_bound=

#each	Iterates the given block for each prime number.
#next	alias of #succ.
#rewind	Rewinds the internal position for enumeration.
#size,
#succ	returns the next pseudo-prime number, and move the internal position forward.
#with_index	see `Enumerator`#with_index.
#with_object	see `Enumerator`#with_object.

[ GitHub ]

# File 'lib/prime.rb', line 411


def initialize
  @last_prime_index = -1
  super
end

Alias for #succ.

[ GitHub ]

# File 'lib/prime.rb', line 423


alias next succ

[ GitHub ]

# File 'lib/prime.rb', line 420


def rewind
  initialize
end

[ GitHub ]

# File 'lib/prime.rb', line 416


def succ
  @last_prime_index += 1
  EratosthenesSieve.instance.get_nth_prime(@last_prime_index)
end