Solution for "Sum of Two Integers" using bitwise operators

[cs307]

I thought of a simple solution for this problem using bitwise operators and not using + for doing actual addition as the question intends:

class Solution(object):
    def getSum(self, a, b):
        """
        :type a: int
        :type b: int
        :rtype: int
        """
        return (a|b) + (a&b)

[baradwaj]

I guess you should not use '+' anywhere in the code

[shailu.theleo]

public int getSum(int a, int b) {
     while (b != 0) 
    {
        int carry = a & b;
        a = a ^ b;
        b = carry << 1;
    }
    return a;
}

[shailu.theleo]

public int getSum(int a, int b) {
     while (b != 0) 
    {
        int carry = a & b;
        a = a ^ b;
        b = carry << 1;
    }
    return a;
}

[zhangxi427]

@shailu.theleo This solution will get the wrong answer if a or b <= 0