Couple of questions about XOR linked lists...
Ok, I get the basic concept of an XOR linked list... but I have a couple of questions concerning manipulation of the list.
1. How would you remove the head or tail? I'm familiar with Java, so what I would do there (with a traditional linked list) is just set the head to the node right after it, and set that node's previous to null. But in C and XOR linked lists, the memory of the previous "head" is still being used, despite me re-assigning head to the node after, right?
How would I go about freeing the memory of that de-referenced node?
2. The XOR function in C, "^", uses numbers. The links in my XOR linked list are node structs, so I typecast them to integers in order to use the "^" function. VS gives me a warning after I compile: 'XORListNode *' differs in levels of indirection from 'int'
Can someone elaborate on what this means?