This is a simple implementation of Circular Doubly Linked-List in C. Circular Doubly Linked-List is a data structure that is a combination of a doubly linked list and a circular linked list. It is a linked list where all nodes are connected to each other. It is a circular linked list because all nodes are connected to each other.

This is a simple implementation of a circular linked-list in C. Circular linked-lists are a type of linked-list where the last node points to the first node. This is useful for implementing queues and stacks. This implementation is a doubly linked-list, meaning that each node has a pointer to the next node and a pointer to the previous node.