Re: Glib::RefPtr vs std::shared_ptr

RefPtr in the current stable glibmm family is an intrusive refcounting smart pointer, i.e. it uses GObject refcounting.

In unstable, it is an alias to shared_ptr, so it uses a different layer of C++ refcounting instead of GObject.

As for which is better, I guess the above answers that too.

Btw, neither relates to Gtk::manage(), which is about letting containers manage the lifetime of their children, i.e. restoring the floating reference semantics that widgets have by default in GTK+ but not in gtkmm. RefPtr is not used with widgets.

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