Little endian Vs Big endian

Question

Lets say I have 4Byte integer and I want to cast it to 2Byte short integer. Am I right that in both (little and big endian) short integer will consist of 2 least significant by

Answer 1

If you really want to convert an int to a short, then just do that:

short int_to_short(int n) {
  if (n < SHRT_MIN) return SHRT_MIN;
  if (n > SHRT_MAX) return SHRT_MAX;
  return (short)n;
}

You don't have to even worry about endian, the language handles that for you. If you are sure n is within the range of a short, then you can skip the check, too.