[fpc-pascal] Memory leak or object destruction?

[Michael Van Canneyt]

On Thu, 3 Feb 2011, Bo Berglund wrote:

> I am curious as to how FPC handles the following situations:
>
> var
>  MyObj: TsomeObject;
> begin
>  MyObj := TsomeObject.Create;
>  // do some processing
>  MyObj := NIL;
> end;
>
> Will this create a memory leak or will FPC fnd by reference counting
> that nothing references the object memory and dispose of it?

It will create a memory leak (as in Delphi).

>
> If the latter, will the disposal call the object's destructor or not?
>
> next:
>
> var
>  MyObj: TsomeObject;
> begin
>  MyObj := TsomeObject.Create;
>  // do some processing
> end;
>
> What happens here where the local variable MyObj gets out of scope,
> again with the reference to object memory disappearing?
> Memory leak or object destruction?

Memory leak. Class instances that are created must also be destroyed.

100% the same as in Delphi.

Michael.