On Thu, Nov 17, 2011 at 16:03, Sven Barth <pascaldra...@googlemail.com>wrote:
> Am 17.11.2011 09:23, schrieb ik: > > It's not allowed in Delphi in case of a var/out parameter. It's >> allowed in both FPC and Delphi in case of a value/const parameter. >> >> >> Sorry for the late response, but why does out and var limit this issue ? >> I understand that it does, but not the reason for it. >> > > The reason is mentioned in the link I sent you: > http://wiki.freepascal.org/**User_Changes_2.6.0#Passing_** > derived_classes_to_var-_and_**out-parameters<http://wiki.freepascal.org/User_Changes_2.6.0#Passing_derived_classes_to_var-_and_out-parameters> > I read it, but I do not understand it. TStrings is a class. TStringList is a class inherited from TStrings. How does it prevent the type checking ? As I remember, if I placed there "TFom" based class, it will not like it and report and error. That's why I do not understand it I guess. > > Regards, > Sven > > ______________________________**_________________ > > fpc-pascal maillist - > fpc-pascal@lists.freepascal.**org<fpc-pascal@lists.freepascal.org> > http://lists.freepascal.org/**mailman/listinfo/fpc-pascal<http://lists.freepascal.org/mailman/listinfo/fpc-pascal> >
_______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
