Method: Prime#each

Defined in:
lib/prime.rb

#each(ubound = nil, generator = EratosthenesGenerator.new, &block) ⇒ Object

Iterates the given block over all prime numbers.

Parameters

ubound

Optional. An arbitrary positive number. The upper bound of enumeration. The method enumerates prime numbers infinitely if ubound is nil.

generator

Optional. An implementation of pseudo-prime generator.

Return value

An evaluated value of the given block at the last time. Or an enumerator which is compatible to an Enumerator if no block given.

Description

Calls block once for each prime number, passing the prime as a parameter.

ubound

Upper bound of prime numbers. The iterator stops after it yields all prime numbers p <= ubound.


212
213
214
215
 
# File 'lib/prime.rb', line 212

def each(ubound = nil, generator = EratosthenesGenerator.new, &block)
  generator.upper_bound = ubound
  generator.each(&block)
end