I was wondering why you need to take a copy of the head in an iterating function ? All examples i have seen do this.
Won't head be local to this function and the head that was passed will still point to the correct place once it terminates?
e.g.
main
--------
ret = length(head);
--------------
int length(struct tag *head){
struct tag* current = head;
...
The parameter inside the function is already a copy of the head pointer.
So making another copy (in this case, current) is not necessary, but rather a choice on your part.
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Cool, thats what i thought. Its just every example i've looked at recently does this.
