[fpc-pascal] Incompatible type for generics?

[Xiangrong Fang]

> Short answer: you can't. The same would happen with normal classes.
>
> Long answer: You could add an additional method "Next" to your "TIntTree"
> which returns a "TIntTree" and just do "Result := TIntTree(inherited
> Next);" there.
>
> Why are you subclassing in this case anyway?
>
Thanks, I will inherit the method.  I need to add features in the
sub-class. This empty TIntTree is just to show the problem.
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