Dear Adam,
If there is indeed an error in gtkmm itself, it would help if you could
provide a small self-contained test case for us to try.
http://chyla.tk/gtk_foobar-0.1.tar.gz
void MainClass::MoveDownFun()
{
Glib::RefPtr<Gtk::TreeSelection> selection =
TreeViewExample.get_selection();
Gtk::TreeModel::iterator iter = selection->get_selected();
if (iter) // it must not be selected
if (ListStore->children().end() != iter)
ListStore->iter_swap(iter, iter++);
}
The error Juan pointed out is still there:
In last line but one you should be checking that iter is not the last
element in the list. That is not what you are checking, because end() is
_not_ the last element. It follows that when iter is the last element in
the list, you execute iter_swap with iter++ anyway, which is invalid.
All the best and a happy new year,
Mark
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