structure pointer and arrow ppointer

 /*

we can change the value of variables by using pointer in two different

ways first by pointer derefernce line no. 19

and second by line no 21*/

#include <stdio.h>

int main(){

struct student {

char name[70];

int age ;

int rollno;

};

struct student sumit = { "sumitbohare" , 18, 34};

struct student *ptr;

ptr = &sumit;

(*ptr).rollno = 35;

//ptr -> rollno = 35;

 printf("%s, %d, %d ", sumit.name , sumit.age , sumit.rollno );

 return 0;

}