# File lib/nice-ffi/struct.rb, line 430
  def to_s
    begin
      if self.pointer.null?
        return "#<NULL %s:%#.x>"%[self.class.name, self.object_id]
      end
    rescue NoMethodError
    end

    mems = members.collect{ |m|
      unless self.class.hidden?( m )
        val = self.send(m)

        # Cleanup/simplify for display
        if val.nil? or (val.is_a? FFI::Pointer and val.null?)
          val = "NULL" 
        elsif val.kind_of? FFI::Struct
          val = "#<#{val.class}:%#.x>"%val.object_id
        end
        
        "@#{m}=#{val}"
      end
    }.compact.join(", ")

    if( mems == "" )
      return "#<%s:%#.x>"%[self.class.name, self.object_id]
    else
      return "#<%s:%#.x %s>"%[self.class.name, self.object_id, mems]
    end
  end