What does least significant byte mean?

Question

I have to implement a method that writes a byte to an ostream object. Let\'s just called this ostream object strobj. I also have a bit

Answer 1

The more significant bits of an int are the ones that contribute more to its value. The least significant bits contribute less. You can normally obtain these by anding the integer with 255 (a byte with all 1s)

int lsb;
lsb = SumInt & 255;