CList insert at start

InsertAtStart.go

func InsertAtStart(head **Node, x int) {
	// Create new node
	tmp := &Node{Data: x}
	tmp.Next = tmp

	fmt.Println("\nInserting", tmp, "at the start ")
	if *head == nil {
		*head = tmp
		return
	}
	p := *head
	for ; p.Next != *head; p = p.Next {
	}
	p.Next = tmp
	tmp.Next = *head
	*head = tmp
}