last type

how can i determine if i've hit the last type?

if i am iterating over them as such:

f = After f

it'll run itself right off the end of the list.

is there some way to do something like

if exists(f)

or

if not last f

?

i don't see anything for this.

if f = null; you went past the last type
;or
if f <> null; the object exists

Type alien
Field x,y
End Type

For f= 0 To 10
a.alien = New alien
If f = 10 a\x = 20
Next

a = Last alien
Print a\x
Stop
End

OR

Type alien
Field x,y
End Type

For f= 0 To 10
a.alien = New alien
If f = 10 a\x = 20
Next

a = First alien
While a <> Last alien
a = After a
Wend

Print a\x
Stop
End

very nice!

thanks a lot