code: func ensureInRange(n int16, min int16, max int16) int16 {
  	if n < min {
  		return min
  	} else if n > max {
  		return max
  	} else {
  		return n
  	}
  }
docs: // ensureInRange adjusts the passed value, if necessary, to ensure it is within
  // the passed min / max range.