What does the struct declaration typedef struct A { … } B; mean?

Question

What is the name of the struct below — node_t or node ? Why is there any difference?

typedef struct node_t
{
    int data;
    struct node_t *right, *left;
}   node;

Answer 1

You are defining a name ( node ) for the struct node_t .

It allows you to create the structure using node myStruct instead of struct node_t myStruct .