Hi,
I have created a vector of structs like this:

Qt Code: 
  1. struct Review {
  2. 	QString title;
  3. 	QString page;
  4. };
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I filled it with data from a database; now I need to sort alphabetically by title this vector; I made a bubbleSort function:

Qt Code: 
  1. void MagazineWidget::bubbleSort(QVector<Review> vector)
  2. {
  3. 	bool swap = true;
  4.  
  5. 	for(int j = 0; swap; j++)
  6. 	{
  7. 		swap = false;
  8. 		for(int k = vector.size()-1; k > j; k--)
  9. 		{
  10. 			if(vector.at(k).title < vector.at(k-1).title)
  11. 			{
  12. 				Review temp;
  13. 				temp.title = vector.at(k).title;
  14. 				temp.page = vector.at(k).page;
  15. 				vector.at(k).title = vector.at(k-1).title;
  16. 				vector.at(k).page = vector.at(k-1).page;
  17. 				vector.at(k-1).title = temp.title;
  18. 				vector.at(k-1).page = temp.page;
  19. 				swap = true;
  20. 			}
  21. 		}
  22. 	}
  23. }
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and call it with this statement:

Qt Code: 
  1. QVector<Review> reviews;
  2. // ...
  3. // Filling the vector
  4. // ...
  5. bubbleSort(reviews);
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During compilation I got the following error on lines 15-18:

Qt Code: 
  1. error: passing ‘const QString’ as ‘this’ argument of ‘QString& QString::operator=(const QString&)’ discards qualifiers
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Thanks