defmodule RC do
  def test_iterate(dict_impl \\ Map) do
    d = dict_impl.new |> Dict.put(:foo,1) |> Dict.put(:bar,2)
    print_vals(d)
  end

  defp print_vals(d) do
    IO.inspect d
    Enum.each(d, fn {k,v} -> IO.puts "#{k}: #{v}" end)
    Enum.each(Dict.keys(d), fn key -> IO.inspect key end)
    Enum.each(Dict.values(d), fn value -> IO.inspect value end)
  end
end

IO.puts "< iterate Map >"
RC.test_iterate
IO.puts "\n< iterate HashDict >"
RC.test_iterate(HashDict)