Re: SIGSEGV one sample application

[Phil Wolff <adiabat centurylink net>]

And one more thing :-)  I think that mainHPaned must be realized before 
you call set_position (),  otherwise it will have no effect.

On 08/13/2015 01:59 PM, Phil Wolff wrote:
> Note also that when MainWindow() returns, all of your widgets are 
> destroyed since they go out of scope.
>
> Try this instead:
>
> MainWindow::MainWindow() {
>     Gtk::HPaned* mainHPaned = new Gtk::HPaned ();
>     mainHPaned->set_position(50);
>
>     Gtk::Label* label1 = new Gtk::Label("the first label");
>     mainHPaned->add1(*label1);
>
>     Gtk::Label* label2 = new Gtk::Label("that is the second label");
>     mainHPaned->add2(*label2);
>
>     this->add(*mainHPaned);
>     this->show_all();
> }
>
> On 08/13/2015 01:51 PM, Phil Wolff wrote:
> > After inventing a MainWindow.h, I compiled and executed your example 
> > without any problems. Perhaps you should show us your MainWindow.h.
> >
> > On 08/13/2015 01:28 PM, Emil Nowak wrote:
> > > Hello,
> > > I'm having problems running just a simple application. I got 
> > > Segmentation
> > > fault with almost empty backtrace, so can't find what is wrong.
> > > The code looks like this:
> > >
> > > main.cc file:
> > > #include "MainWindow.h"
> > > int main(int argc, char **argv) {
> > >     Glib::RefPtr<Gtk::Application> app = Gtk::Application::create(argc,
> > > argv); MainWindow window;
> > >     return app->run(window);
> > > }
> > >
> > > MainWindow.cc file:
> > > #include "MainWindow.h"
> > >
> > > MainWindow::MainWindow() {
> > >      Gtk::HPaned mainHPaned;
> > >      mainHPaned.set_position(50);
> > >
> > >      Gtk::Label label1;
> > >      label1.set_text("the first label");
> > >      mainHPaned.add1(label1);
> > >
> > >      Gtk::Label label2;
> > >      label2.set_text("that is the second label");
> > >      mainHPaned.add2(label2);
> > >
> > >      this->add(mainHPaned);
> > >      this->show_all();
> > > }
> > >
> > > When I run it in debugger:
> > > Using host libthread_db library
> > > "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1". [New Thread 
> > > 0xb5b5db40 (LWP
> > > 4799)]
> > >
> > > Program received signal SIGSEGV, Segmentation fault.
> > > 0x006c6562 in ?? ()
> > > (gdb) bt
> > > #0  0x006c6562 in ?? ()
> > > #1  0xbffff54c in ?? ()
> > > Backtrace stopped: previous frame inner to this frame (corrupt stack?)
> > >
> > >
> > > My environment is:
> > > g++ version is 4.9.3,
> > > gtkmm 3.16.0
> > >
> > > Can you tell me what is wrong with this sample, or how to get more 
> > > details in
> > > debugging?
> > > _______________________________________________
> > > gtkmm-list mailing list
> > > gtkmm-list gnome org
> > > https://mail.gnome.org/mailman/listinfo/gtkmm-list

--
Just remember, if we get caught, you're deaf and I don't speak English.
    -- Unknown