Addition of two numbers using bitwise operators in c

C program for Add two numbers using bitwise operators. Here problem description and explanation.

// Include header file
#include <stdio.h>

#include <stdlib.h>

// C program for
// Add two numbers using of bitwise operators

// Add two numbers
void addition(int a, int b)
{
	// Display given numbers
	printf("\n [(%d) + (%d)] ", 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
	printf(" : %d", a);
}
int main()
{
	
	// Test Case
	addition(8, -2);
	addition(5, 3);
	addition(-3, -5);
}

Output

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