What is the purpose of the first “node” in the declaration: “typedef struct node { - - - } Node;”?

Question

I am studying code examples from my professor in order to become better acquainted with linked data structures.

In our linked-list.c example the professor defines a

Answer 1

Here struct node is a type like int

and Hence

struct node {
  int data;
  struct node *next;
}NodeVar;

means you are declaring a single variable Node of struct node.

like int intVar;

typedef is to make your code understandable.

so that when you use

typedef struct node Node;

you can use the same declaration as

Node NodeVar;