Edit where a pointer points within a function

Question

I have a pointer to a struct object in C++.

 node *d=head;

I want to pass that pointer into a function by reference and edit where it point

Answer 1

Pass a node ** as an argument to your function:

// f1 :
node *d = head;

f2(&d);

// f2:
void f2(node **victim) {
    //assign to "*victim"
}