should I delete the pointer by myself, or not?

["Sun Wuan" <s5unty gmail com>]

hi, all

       Glib::RefPtr<Gnome::Glade::Xml> refXml;    //<-- this pointer
       try {
         refXml = Gnome::Glade::Xml::create("somefile");
       }
       catch (const Gnome::Glade::XmlError& ex) {
         // should i delete it ?
         // how to delete it by myself?
         g_print(ex.what().c_str());
         return 1;
       }

       may i declare refXml like this:
       auto_ptr<Glib::RefPtr<Gnome::Glade::Xml>> refXml ?

- Wuan
Thanks all for replies