PRINT FNfib(10)
      END

      DEF FNfib(n%) IF n%<0 THEN ERROR 100, "Must not be negative"
      LOCAL P% : P% = !384 + LEN$!384 + 4 : REM Function pointer
      (n%) IF n%<2 THEN = n% ELSE = FN(^P%)(n%-1) + FN(^P%)(n%-2)