[fpc-pascal] Pointers in Pascal!!

[Zaka E-Lab]

Maybe I haven't explain it correctly. What I want is to construct a
Unit that contains some procedures, one of them is
create(var p : PStruct), and other is delete(var p : PStruct).

I don't create anything, the memory is allocated by the create
procedure. How can the procedure know if the argument is a pointer
already allocated or not?

I hope I've explain good enough.

Thanks.

Zaka.

Leonardo M. Ramé escribió:
> You can assign "nil" to the pointer before using it, then check if PStruct = nil it wasn't
> created.
> 
> Leonardo.