Add two numbers using bitwise operators in c++

C++ program for Add two numbers using bitwise operators. Here more information.

// Include header file
#include <iostream>
using namespace std;
// C++ program for
// Add two numbers using of bitwise operators
class NumberAddition
{
	public:
		// Add two numbers
		void addition(int a, int b)
		{
			// Display given numbers
			cout << "\n [(" << a << ") + (" << b << ")] ";
			// Auxiliary variable which are store the carry bit result
			int carry = 0;
			// Executing loop, until b value is not zero
			while (b != 0)
			{
				// Get carry bits of a &b
				carry = a &b;
				// Sum of bits of a ^ b
				a = a ^ b;
				// Shift the carry bit by one bit in left side
				b = carry << 1;
			}
			// Display add result
			cout << " : " << a;
		}
};
int main()
{
	NumberAddition *task = new NumberAddition();
	// Test Case
	task->addition(8, -2);
	task->addition(5, 3);
	task->addition(-3, -5);
	return 0;
}

Output

 [(8) + (-2)]  : 6
 [(5) + (3)]  : 8
 [(-3) + (-5)]  : -8