[gtkmm] Free result of TreeModel::get_path()?

[Markus Gerwinski <markus gerwinski de>]

Hello,

the documentation says, a Gtk::TreePath returned by TreeModel::get_path()
should be freed with gtk_tree_path_free(). But since Gtk::TreePath itself is
not a pointer type, the function cannot be applied to it. Can anybody tell me
how to correctly free the get_path() result again?

Thanks in advance,

  Markus