==

# File lib/resolv.rb, line 1674
      def ==(other) # :nodoc:
        return false unless self.class == other.class
        s_ivars = self.instance_variables
        s_ivars.sort!
        s_ivars.delete :@ttl
        o_ivars = other.instance_variables
        o_ivars.sort!
        o_ivars.delete :@ttl
        return s_ivars == o_ivars &&
          s_ivars.collect {|name| self.instance_variable_get name} ==
            o_ivars.collect {|name| other.instance_variable_get name}
      end