QStack pop() does not remove the item from the stack

[ddze]

Hi,

                QStack <QColor> stackColors; // QStack declaration ... push 2 values onto the stack

                qDebug()<<" getColor count a "<<cell->getStackColors().count(); // out -> 2 
                cell->getStackColors().removeLast();  // should reduce the count to 1 
                qDebug()<<" getColor count b "<<cell->getStackColors().count();  // again out -> 2 

So apparently the removeLast() does not reduce the number of items on the stack. I tried pop() and nothing. Have I misunderstood the concept since the documents explain that the removeLast "Removes the last item in the vector" , (stack).

[mrjj]

hi

QStack <QColor> stackColors; 
  stackColors.push(QColor(0,0,0));
  stackColors.push(QColor(222,222,222));
  qDebug() << " getColor count a " << stackColors.count(); // out -> 2
  stackColors.removeLast();  // should reduce the count to 1
  qDebug() << " getColor count b " << stackColors.count(); // again out -> 2

gives
getColor count a 2
getColor count b 1

so my guess is that cell->getStackColors() returns a COPY of your list.
If you are not using & in return type, this might be why.
(it creates a copy , not returning the original list)

[ddze]

@mrjj ,

You people are incredibly good.

Thank you so much.