passing structure to a function by address

 

Instruction: Program write in notes notebook 

For Example: Write a program to demonstrate the use of passing structure to a function by address

#include<stdio.h>

#include<conio.h>

struct student                   //Here student is a structure

{

int rollno;

char sname[20];

char sclass[20];

};

 

void display(struct student *stu);            //Here stu is the pointer variable of structure, stud is point to s structure variable

// function prototype should be below to the structure declaration otherwise compiler shows error

void main()

{

             struct student s;             // Here s a structure variable

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

             scanf("%d", &s.rollno);

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

             scanf("%s", &s.sname);

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

             scanf("%s",&s.sclass);

             display(&s);   // Here function call ,(passing structure variable s as argument)

            getch();

}

void display(struct student *stu)   //Function definition

{

printf("\n Roll is: %d",stu->rollno);

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

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

}

Output :