From: Charles Turner <vze26m98@...>
Date: 2008-08-30T03:33:38+09:00
Subject: Use of  "next" in Ruby 1.9?

Hi all-

Fiddling around with external iterators in Ruby 1.9,
and had a question. Given the following method definition:

def twice
  if block_given?
    yield 1
    yield 2
  else
    self.to_enum(:twice)
  end
end

Why does:

iter = twice
puts iter.next

display output, but:

iter = twice
iter.next {|x| puts x }

doesn't?

Best, Charles Turner