[fpc-pascal] Pointers in Pascal!!
Leonardo M. Ram�
martinrame at yahoo.com
Tue Apr 29 13:24:40 CEST 2008
You can assign "nil" to the pointer before using it, then check if PStruct = nil it wasn't
created.
Leonardo.
--- Zaka E-Lab <shanatorio at gmail.com> wrote:
> I have something like this:
>
> PStruct = ^Struct;
> Struct = record
> num : integer;
> end;
>
> I have a unit to handle that structure ( is a bit more complicated, but
> is a good example), in this unit I have a procedure that deletes (
> disposes ) the pointer. How can I know if a pointer are created or not?,
> I mean, I don't wont to try to delete something that has not been
> created yet, but I don't know how to do it, if that is possible.
>
> Thanks a lot.
>
> Zaka.
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