Hi,
in many QT methods, for example the data() method of QAbstractTableModel (and many others) I am creating objects on the stack and returning them, like this:

Qt Code: 
  1. QVariant ActionListModel::data(const QModelIndex &index, int role) const {
  2.     Action *a;
  3.     int row_num,col_num;
  4.     col_num=index.column();
  5.     row_num=index.row();
  6.     if (row_num>=actions->count()) return (QVariant());
  7.     a=actions->value(row_num);
  8.     if (a==0) {
  9.         return(QVariant());
  10.     }
  11.     if (role==Qt::DecorationRole) {
  12.         if (col_num==0) {
  13.             cat_action_id_t act_code;
  14.             act_code=a->get_action_code();
  15.             switch(act_code) {
  16.                 case CAT_ACTION_UNDEFINED: {
  17.                     break;
  18.                 }
  19.                 case CAT_ACTION_COMMENT : {
  20.                     QPixmap icon("/home/action_type_icons/comment.png");
  21.                     return(icon);
  22.                     break;
  23.                 }
  24.                 case CAT_ACTION_NEW_DEPENDENCY: {
  25.                     QPixmap icon("/home/action_type_icons/new_dependency.png");
  26.                     return(icon);
  27.                     break;
  28.                 }
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The "icon" variable is created on the stack and is destroyed after the method execution ends, but I am not getting segmentation faults in my app. The question is, how does it work ? Is QT copying all objects I am returning in the QT methods that I am overriding?

TIA.