C ++链表-取消分配节点会出现错误

Question

I created a linked list. Insertion and traversing works fine. Given below is the part in which I am deallocating the nodes. I have three pointers now, nxt, start all of which are of the datatype node (the structure)

now=start;
for(int i=0;i<n;i++){
    nxt=now->link;
    delete now->link;
    now=nxt;
}

start stores the address of the first node, now stores the address of the current node under process, nxt stores the address of the next node which is accessed from the link part of the node at address now .

When I try to execute the program everything until deletion works properly and when it reaches deletion the program crashes and gives "Title : Stopped working" error. What is wrong with the code?

Answer 1

I guess that's the problem:

delete now;
now=nxt;

You delete something and then perform an assignment to it.