c structures

Question

struct node { 
    int data1; 
    char data2; 
    struct node* link; 
};                              //self referential structure
  ***************************************
  struct node { 
    int data1; 
    char data2; 
     
} m;
int main ()
{
    struct node * ptr;
    return 0;
}
  

 

are both pointer ptr & link will do same work every where?

All I need to ask is difference between self referential structure and Pointer to Structure ?

 

Answer 1

both pointer $ptr$ and $link$ will work as same

Comments

then why is it necessary to define seelf referntial pointers in structure

---

self referential pointers is used to keep track of nodes in linked list without this it will be difficult to track nodes of linked list.

---

ok thank you