skiplist/item.go
func CompareBytes(this, that unsafe.Pointer) int {
	thisItem := (*byteKeyItem)(this)
	thatItem := (*byteKeyItem)(that)
	return bytes.Compare([]byte(*thisItem), []byte(*thatItem))
}
func CompareBytes(this, that unsafe.Pointer) int {
	thisItem := (*byteKeyItem)(this)
	thatItem := (*byteKeyItem)(that)
	return bytes.Compare([]byte(*thisItem), []byte(*thatItem))
}
// CompareBytes is a byte item comparator