text: #include <cassert>
  #include <QHash>
  
  int main ()
  {
      QHash<int, int> myQHash;
      QHash<int, int> :: const_iterator it;
  
      myQHash[1] = 500;
      myQHash[2] = 300;
      myQHash[3] = 100;
      myQHash.squeeze();
      assert(myQHash.count() == 3);
  
      return 0;
  }
  