bool DoubleList::deleteNode(doubleNode *head) {
auto prev = head;
auto delP = head -> next;
int location;
cout << "Confirm the deletion location" ;
cin >> location;
for (int i = 1; i < location; ++i) {
prev = prev ->next;
delP = delP ->next;
}
if (!prev ->next){
cout << "False to delete it!" << endl;
return false;
}
prev ->next = delP ->next;
delP ->next ->prior = prev;
delete delP;
return true;
}
这是一个双链表的删除操作,删最后一个结点的时候会异常退出,应该怎么改?