template<class T>
void queue<T>::copy(const queue<T>& original){
  QNodeType<T>* current;
  QNodeType<T>* addin;
  addin = new QNodeType<T>;
  current = original.front_;
  count=original.count;

  if(front_ != NULL){
    destroy();
  }

  if(original.front_==NULL){
    front_=NULL;
    back_=NULL;
  }
  else{
    front_= new QNodeType<T>;
    addin->item=current->item;
    front_=addin;
    back_=addin;
    if(current->next != NULL){
      while(current->next != NULL){
        addin= new QNodeType<T>;
        addin->item=current->item;
        addin->next=NULL;
        back_->next=addin;
        back_=addin;
        current=current->next;
      }
    }
  }
}