hamming-distance-8.m

+ (NSInteger) calculateHammingDistanceFor:(NSInteger)x and:(NSInteger)y {
    // Step 1: Find different bits
    NSUInteger differentBits = x ^ y;
    
    // Step 2: Count them
    NSUInteger counter = 0;
    while (differentBits > 0) {
        NSUInteger maskedBits = differentBits & 1;
        if (maskedBits != 0) {
            counter++;
        }
        differentBits = differentBits >> 1;
    }
    
    return counter;
}