Check if two numbers are equal using bitwise operators

Let's write a c program to check if two numbers are equal or not using bitwise operators.

Logic

If two numbers are equal the bitwise XOR (^) result will be zero.

Bitwise XOR Operator

Example

2 ^ 2

0010

------

0000

Example

5 ^ 5

0101

------

0000

Binary equivalent of 2 is 0010.

Binary equivalent of 5 is 0101.

Program

Example

/*
 * Program  : Check if two numbers are equal using bitwise operators
 * Language : C
 */

#include<stdio.h>

int main()
{
    int num1,num2;

    scanf("%d%d",&num1,&num2);

    if((num1 ^ num2) == 0)
        printf("Equal\n");
    else
        printf("Unequal\n");

    return 0;
}