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Practical-06

Write a program to swap value of two integer number using UDF.​

Code

Practical-06.c
#include <stdio.h> //Include the stdio library

// function to swap two integers without pointers
void swap(int a, int b)
{
    int temp = a;
    a = b;
    b = temp;
    printf("Swapped values: a = %d, b = %d\n", a, b);
}

// call swap function
void main(){
    int a = 10;
    int b = 20;
    printf("Original values: a = %d, b = %d\n", a, b);

    swap(a, b);
}
Output
Original values: a = 10, b = 20
Swapped values: a = 20, b = 10
Explanation

The swap function takes two integer arguments and swaps their values. The function doesn't return anything. The function is called in the main function and the values of a and b are passed to the function. The function swaps the values of a and b and prints the swapped values. The main function prints the original values of a and b before calling the swap function.