[fpc-pascal] SIGSEGV in fpc_check_object

José Mejuto joshyfun at gmail.com
Wed Jun 14 10:28:05 CEST 2017

El 13/06/2017 a las 21:04, Gabor Boros escribió:

> Cannot have a simple test case just a dumb example.
> procedure TForm1.FormCreate(Sender: TObject);
> var
>    x:TPanel;
> begin
>    x.Free;
> end;
> With Linux no error (x is Nil before the Free call), with Windows got 
> SIGSEGV (x is not Nil before the Free call). Is it a Lazarus thing or 
> come from FPC?


That's wrong for sure, x is not initialized to nil, not in Linux nor in 
Windows. Procedure variables must be always initialized by hand. With 
that code you will get a warning from the compiler about uninitialized 
variable use.


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