Contents

require 'enumerator'

module Combinatorics
  # auto-detects the `Enumerator` class.
  Enumerator = if defined?(::Enumerator) # 1.9
                 ::Enumerator
               elsif defined?(::Enumerable::Enumerator) # 1.8.7
                 ::Enumerable::Enumerator
               else
                 raise("unable to find the Enumerator class")
               end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
combinatorics-0.4.4	lib/combinatorics/enumerator.rb
combinatorics-0.4.3	lib/combinatorics/enumerator.rb
combinatorics-0.4.1	lib/combinatorics/enumerator.rb