# File lib/Dnsruby/resource/resource.rb, line 558
    def ==(other)
      return false unless self.class == other.class
      ivars = self.instance_variables
      s_ivars = []
      ivars.each {|i| s_ivars << i.to_s} # Ruby 1.9
      s_ivars.delete "@ttl" # RFC 2136 section 1.1
      s_ivars.delete "@rdata"
      if (self.type == Types.DS)
        s_ivars.delete "@digest"
      end
      s_ivars.sort!
      
      ivars = other.instance_variables
      o_ivars = []
      ivars.each {|i| o_ivars << i.to_s} # Ruby 1.9
      o_ivars.delete "@ttl" # RFC 2136 section 1.1
      o_ivars.delete "@rdata"
      if (other.type == Types.DS)
        o_ivars.delete "@digest"
      end
      o_ivars.sort!
      
      return s_ivars == o_ivars &&
        s_ivars.collect {|name| self.instance_variable_get name} ==
        o_ivars.collect {|name| other.instance_variable_get name}
    end