1package uv
 2
 3func abs(x int) int {
 4	if x < 0 {
 5		return -x
 6	}
 7	return x
 8}
 9
10func clamp(v, low, high int) int {
11	if high < low {
12		low, high = high, low
13	}
14	return min(high, max(low, v))
15}