C Program to add two numbers using call by reference

In this program, You will learn how to add two numbers using call by reference in C.

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Call by Reference

void sum(int a, int b, int *s){
     statement
 }

Example: How to add two numbers using call by reference in c.

#include<stdio.h>

void sum(int a, int b, int *s) {
    *s = a + b;
}

int main() {

    int a, b, s;

    printf("Enter two numbers:");
    scanf("%d%d", &a, &b);

    sum(a, b, &s);
    printf("Sum is:%d", s);

    return 0;
}

Output:

Enter two numbers:10 20                                                                                                                
Sum is:30