[fpc-pascal] memory management with open arrays and classes

[David Emerson]

Thanks, Joost, for all of your answers! It looks like I need to write 
*more* cleanup code, and double-check it all.

One question remains:

> After calling setlength, the items in the array are not initialised. 
> 
> [...]
> 
> Initialising the strings you can do by setting them to an empty
> string. (s := '')

I had the impression that an ansistring is essentially a special kind of 
pointer. Since the *pointer* contains random (not nil) data, then ... 
if I assign it to empty-string, wouldn't fpc treat the old random 
pointer reference as an ansistring that needs to have its reference 
count decremented?

For this reason, I have previously used fillchar to nil those out.

Thanks,
David