[fpc-pascal] Destroy vs Free: Memory Leak?

[Michael Van Canneyt]

On Mon, 6 Sep 2010, Brian Winfrey wrote:

> I have a TestCase that has this issue.  If I call obj.Free, I am
> unable to step into the Destroy method and heaptrc indicates a memory
> leak.  If I call obj.Destroy everything works as expected.  Following
> the call to Free -
> ... if (obj <> nil) then obj.Destroy;
> it would seem that the object must be nil.  How can I test this?  i am
> unable to step into objpas?.inc.

You don't need to step in ?

Replace the line Obj.Free with
   if (Obj=nil) then
     Writeln('Error')
   else
     Obj.Free;
Then you'll find the error.

To do what you want you'll need to recompiler everything (RTL, FCL, PAckages
etc. with debug information (pass OPT=-gl to the make command line, maybe
DEBUG=1 also works)

Michael.