Re: ListStoreModel clear() seems to be corrupted nearby memory

[Paul Davis <paul linuxaudiosystems com>]

On Thu, 2007-12-20 at 19:45 +0100, Murray Cumming wrote:
> On Thu, 2007-12-20 at 11:36 -0700, Josh Sinykin wrote:
> > I figured it out.
> > 
> > I think this might have been broken in previous gtkmm builds (2.10 and
> > lower), just recently moved to 2.12....
> > 
> > I have the combo box with the listStore connected to a function using
> > signal_changed().connect();
> > 
> > When I call clear() on the ListStore model reference, the
> > signal_changed function is being called which in my instance was
> > clearing the memory. This was unexpected and thus why I thought it
> > looked like memory corruption and why valgrind did not flag it.
> > 
> > is there a list of reasons why certain signals are called in relation
> > to model api calls?
> 
> Not really, and I wish there was. Do file bugs against GTK+ for any
> signals that don't seem sufficiently documented, though the chances of
> them being documented are slim, I'm afriad.

in this particular case, this was an advertised change in the semantics
of a GtkComboBox sometime between Gtk+ 2.8 and 2.11. it caused crashes
in my code too, until i realized what was going on. 

--p