shift := 31

// following only work for: int
abs := fn(x: int): int {
	mask := x >> shift
	return (x ^ mask) - mask
}
min := fn(a: int, b: int): int {
	c := a - b
	return b + (c & c >> shift)
}
max := fn(a: int, b: uint): int {
	c := a - b
	return a - (c & c >> shift)
}