Hi there!

I have this toQString function
Qt Code: 
  1. QString Diet::toQString()const
  2. {
  3.  
  4.     QString qName(this->name.c_str());
  5.     QString qUserName(this->userName.c_str());
  6.     QString qDate(this->date.c_str());
  7.     QString kcal;
  8.     QString carb;
  9.     QString protein;
  10.     QString lipid;
  11.  
  12.     carb.setNum(this->carb);
  13.     protein.setNum((this->protein));
  14.     lipid.setNum(this->lipid);
  15.     kcal.setNum(this->kcal);
  16.  
  17.     QString str=qUserName;
  18.     str.append(" "+qDate+" "+qName+" "+protein+" "+carb+" "+lipid+" "+kcal);
  19.  
  20.     return str;
  21. }
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I know this function works properly as it returns the qstring I want.

Now In my other class I have this function.
Qt Code: 
  1. void DH::toQString()const
  2. {
  3.  
  4.     for(int i=0;i< this->nrOfDiets;i++)
  5.     {
  6.       this->dh[i]->toQString();
  7.     }
  8. }
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What I would like to accomplish with these two functions is for example when I write something like this
Qt Code: 
  1. void MainWindow::on_pushButton_3_clicked()
  2. {
  3.     DH dh1;
  4.     ui->list2->addItem(dh1.toQString());
  5. }
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the info from the array should be converted to QString then presented in the list widget, but I'm doing something worn because it crashes when I try this.

Any kind of help is appreciated.