Returns a new set containing elements exclusive between the set and the given enumerable object. (set ^ enum) is equivalent to ((set | enum) - (set & enum)).

Source Code

# File set.rb, line 302
def ^(enum)
  enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
  n = Set.new(enum)
  each { |o| if n.include?(o) then n.delete(o) else n.add(o) end }
  n
end