x_equals_y

// C program to check if two numbers are equal
// without using arithmetic operators or
// comparison operators
#include<stdio.h>

int main()
{
   int x = 10;
   int y = 10;
   if ( !(x ^ y) )
      printf(" x is equal to y ");
   else
      printf(" x is not equal to y ");
   return 0;
}