Covariant problem
Koroskin Denis
2korden at gmail.com
Thu Jul 24 07:16:31 PDT 2008
On Thu, 24 Jul 2008 17:23:44 +0400, Zarathustra
<adam.chrapkowski at gmail.com> wrote:
> Sorry, for the amount of posts, but below is full and most easy example
> program which ilustrates problem ;)
> ________________________________________________________
> // class CFoo
> //_______________________________________________
> class CFoo{
> //_____________________________________________
> // ::>> Attributes <<::
> //
>
> //_____________________________________________
> // << fields >>
> public real [] test(){ return [3.4, 4.5]; }
> }
>
> // class CBar
> //_________________________________________________
> class CBar : CFoo{
> //_____________________________________________
> // ::>> Attributes <<::
> //
>
> //_____________________________________________
> // << fields >>
> public uint [] test(){ return [9, 8, 7]; }
> }
>
> void
> main(char [][] args){
> }
> ________________________________________________________
>
I'm sorry, but your example is incorrect. You can't cast uint[] to real[].
If you need that, write a function for the task. Compiler won't do this
automatically. And yes, they are not covariant! :)
More information about the Digitalmars-d-learn
mailing list