Add 1 to a given number Write a program to add one to a given number. You are not allowed to use operators like ‘+’, ‘-‘, ‘*’, ‘/’, ‘++’, ‘–

#include<stdio.h>

 

int addOne(int x)

{

  int m = 1;

 

  /* Flip all the set bits until we find a 0 */

  while( x & m )

  {

    x = x^m;

    m <<= 1;

  }

 

  /* flip the rightmost 0 bit */

  x = x^m;

  return x;

}

 

/* Driver program to test above functions*/

int main()

{

  printf("%d", addOne(13));

  getchar();

  return 0;

}