On Fri, 2007-09-14 at 12:07 -0400, José Alburquerque wrote: > Murray Cumming wrote: > > On Thu, 2007-09-13 at 11:15 -0400, José Alburquerque wrote: > > > >> As far as gtkmm and inheritance, I found that if I use something like > >> TreeModelColumn<MyBaseClass> in a TreeModelColumnRecord, derived members > >> of MyBaseClass only use the virtual methods of the base class (not the > >> derived class!), but if I use something like > >> TreeModelColumn<MyBaseClass*>, dereferencing the pointer to the derived > >> class later, does use the virtual (overridden) method of the derived > >> class. Thanks again everyone for your help. > >> > > > > This is just like putting a Derived instance in a std::list<Base>. The > > Base part will be copied into a new instance in the list, but that > > instance won't be a Derived. This is how copy-by-value works. > > > > > I see, this is just standard C++. I'm slightly new to C++ (coming from > C and then Java), but I *am* learning as I go along. :-)
Java doesn't really have copy-by-value for non-fundamental types. Everything is a reference there. The rough equivalent in C++ is to use smartpointers or regular pointers (plus your own memory management). -- [EMAIL PROTECTED] www.murrayc.com www.openismus.com _______________________________________________ gtkmm-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gtkmm-list
