Question

How to add two numbers using bitwise operators in C

Answer 1

#include <stdio.h>

int bitwise_add(int x, int y) {
    while (y != 0) {
        int carry = x & y;
        x = x ^ y; 
        y = carry << 1;
    }

    return x;
}

int main(void) {
    printf("%d", bitwise_add(3, 7));
     
    return 0;
}
  
     
     
     
/*
run :
 
10
 
*/

 

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