How to delete the only node in a double linked list?

[joshgarza]

So yeah, I keep dereferencing a NULL pointer and I'm ashamed. What am I doing wrong?

https://pastebin.com/sjBggMd4

[ne555]

        else if (head->next == NULL)
        {
            T output;
            output = head->data;
            delete head; //head is now invalid
            return output;
        }

`head' ends in an invalid state, set it to null.

also, you said that you return T, null may be not be a valid replacement.

[joshgarza]

Thank you good sir :)