Re: [[gtkmm] Possible bug in 1.3.26]

[Murray Cumming <murrayc usa net>]

"Robert J. Hansen" <rjhansen inav net> wrote:
> [rjhansen numbers gtkgpg-0.1]$ more bug.h
> #include <gtkmm.h>
> 
> struct Bug : public Gtk::VBox {
> public:
>   Bug();
>   virtual ~Bug() {};
>   
> protected:
>   Gtk::Label _label;
>   Gtk::Entry _entry;
>   Gtk::HBox _hbox;
> };
> 
> [rjhansen numbers gtkgpg-0.1]$ more bug.cc
> #include "bug.h"
> 
> Bug::Bug() 
> {
>   _label.set_text("Recipients: ");
>   _hbox.pack_start(_label, false);
>   _hbox.pack_start(_entry, true, true);
>   pack_start(_hbox, false);
> }
> 
> int main(int argc, char *argv[])
> {
>   Gtk::Main mainloop(&argc, &argv);
>   Gtk::Window window;
>   Bug bug;
>   window.add(bug);
>   window.show_all();
>   mainloop.run(window);
>   return 0;
> }
> 
> 
> .. When compiling the above code (Mandrake 9 box, GCC 3.2) with -Wall
> -W, I get no complaints whatsoever.  When I execute the code, the widget
> appears fine and dandy; but when I close the window, I get a segfault.
> 
> Replacing the Gtk::HBox with a Gtk::HBox* (either manually handled or
> handed off to manage()) removes the problem.
> 
> Can anyone shed some light on what's going on here?

Have you tried debugging? Can you give us a stack trace?



Murray Cumming
murrayc usa net
www.murrayc.com