Qt double free or corruption

madababi

I developed a QT application that has an authentication widget and a main window. After authentication succeed I open the mainWindow using this code

this->~Authentification();
MainWindow *w= new MainWindow();

but after I close the main window I receive a double free or corruption error. the debug said that the source of this error is

delete ui;

from the class Authentification

kshegunov

@madababi said:
I'm pretty sure this line is wrong (you can glance at this for more information):

this->~Authentification();

Remove it and try again. If the problem persist extract the strack trace and post it here, please.

Kind regards.

madababi

thanks @kshegunov
yes the problem disappear but I need to close the authentification window and open the mainwondow.
what's the best way to do that.

mrjj

@madababi
Hi cant you just call close();
on the Authentification ?

madababi

@mrjj
Thanks it works very well.