C program to find Binary Addition and Binary Subtraction

#include <stdio.h>

 

//function for Binary Addition

int binAddition(int a,int b)

{

      int c; //carry

      while (b != 0) {

              //find carry and shift it left

              c = (a & b) << 1;

              //find the sum

              a=a^b;

              b=c;

      }

      return a;

}

 

//function for Binary Subtraction

int binSubtracton(int a, int b)

{

      int carry;

      //get 2's compliment of b and add in a

      b = binAddition(~b, 1);

 

      while (b != 0) {

              //find carry and shift it left   

              carry = (a & b) << 1;

              //find the sum

              a = a ^ b;

              b = carry;

      }

      return a;

}

 

 

int main()

{

    int number1,number2, binAdd, binSub;

 

    printf("Input first integer value: ");

    scanf("%d",&number1);

   

    printf("Input second integer value: ");

    scanf("%d",&number2);

 

    binAdd=binAddition(number1,number2);

    binSub=binSubtracton(number1,number2);

 

    printf("Binary Addition: %d\n",binAdd);

    printf("Binary Subtraction: %d\n",binSub);

 

    return 0;

 

}