code: func DefaultPof(max int) func(one, other Val, pos int) (int, bool) {
  	return func(one, other Val, pos int) (int, bool) {
  		po, eq := proximityOrder(ToBytes(one), ToBytes(other), pos)
  		if po >= max {
  			eq = true
  			po = max
  		}
  		return po, eq
  	}
  }
docs: // DefaultPof returns a proximity order comparison operator function