func getLinkedListHead(obj *monkstate.StateObject, base []byte) ([]byte, []byte) {
headLocLoc := append(base[:len(base)-1], byte(StdVarSize+1))
headLoc := obj.GetStorage(monkutil.BigD(headLocLoc))
headKey := headLoc.Bytes()[9:29]
head := obj.GetStorage(headLoc.BigInt())
return headKey, head.Bytes()
}
func getLinkedListLength(obj *monkstate.StateObject, base []byte) int {
nEleLoc := append(base[:len(base)-1], byte(StdVarSize+3))
nEl := obj.GetStorage(monkutil.BigD(nEleLoc))
return int(nEl.Uint())
}