Qt: does “new without delete” cause memory leaks with controls?

Question

I was looking at Qt example here:

and inside the constructor, they have:

 Window::Window()
 {
     editor = new QTextEdit();   // Memory leak?
     Q         


        

Answer 1

It won't get double deleted because of the .release() call.

Note std::unique_ptr is replacing std::auto_ptr. Hopefully QT will support move semantics then that release() would be instead layout->addLayout(std::move(buttonLayout)) and without the call to move, you'd get a compile error.