[fpc-pascal] Pointers in Pascal!!

[Jonas Maebe]

On 29 Apr 2008, at 14:48, Zaka E-Lab wrote:

> 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?

It cannot know that without help. You have to do such bookkeeping  
yourself (e.g., as mentioned before, by assigning nil to all pointers  
when declaring them). That is one of the basic properties of a  
language with manual memory management.


Jonas