pointer to structure using (-> operator)

 

For Example: Write a program to demonstrate the use of pointer to structure using (-> operator)

#include<stdio.h>

#include<conio.h>

struct student   //here student is structure name

{

int roll_no; //members

char sname[20];

char sclass[20];

char city[20];

char dob[10];

float marks;

};

void main()

{

struct student s,*ptr;    //Here s is simple variable of structure and *ptr is pointer variable  

                 ptr=&s;          //initialized pointer to structure variable

                 printf("\n Enter Roll Number: ");

                 scanf("%d",&s.roll_no);

                 printf("\n Enter Name of student: ");

                 scanf("%s",&s.sname);

               printf("\n Enter Class of student: ");

                 scanf("%s",&s.sclass);

                 printf("\n Enter city: ");

                 scanf("%s",&s.city);

                 printf("Enter date of birth: ");

                 scanf("%s",&s.dob);

                 printf("Enter student marks: ");

                 scanf("%f",&s.marks);

                 printf("\n ----------------------");

                 printf("\n Students Details");

                 printf("\n ----------------------");

                 printf("\n Student Roll is: %d",ptr->roll_no);  // member access using pointer variable

                 printf("\n Student Name is: %s",ptr->sname);

              printf("\n Class is: %s",ptr->sclass);

                 printf("\n Student City is: %s",ptr->city);

                 printf("\n Date of Birth is: %s",ptr->dob);

                 printf("\n Student Marks is: %f ",ptr->marks);

                 getch();

}

Output: