setFloating method isn't working

[A Former User]

Hello everyone, hope all is well! In regards to my last post (https://forum.qt.io/topic/128370/when-a-dock-widget-is-floating-how-to-reset-it-back-to-its-initial-area-when-a-button-is-pressed), I thought I was about to reach a solution:

void MainWindow::on_actiont2_triggered()
{
    for (int i = 0; i <= dockCount; i++)
    {
        if (dockVector[i]->isFloating())
        {
            dockVector[i]->setFloating(false); // not working
        }
    }
}

My goal for this function is to place a floating dockWidget back into its starting dock widget area. However, when the button is triggered, the program crashes. After doing some testing and debugging, I realize that the setFloating method is causing this problem. What needs to be done to fix this?

[JonB]

@WesLow said in setFloating method isn't working:

the program crashes
dockVector[i]->setFloating(false); // not working

for (int i = 0; i <= dockCount; i++)

Given the normal ranges one expects in C/C++ coding, are you sure your loop termination condition is correct here?

[A Former User]

@JonB Thank you for your response. I'm moving over from Java so this might be a problem I run into. What do you mean by normal ranges one expects?

[A Former User]

@JonB Thank you very much; your advice helped me fix this problem!

[JonB]

@WesLow
I wanted you to look at the loop and see for yourself what was wrong! Even in Java I believe array indexing/loop counters range from 0 to length-1, it has become in most languages.