On Tue, 02 Nov 2010 10:39:27 -0400
Jesse Phillips <[email protected]> wrote:
> I'll come back with a more complete answer latter, but first.
>
> spir Wrote:
>
> > * I wrote Range as class, but I rather meant an interface. D does not let
> > me do that, apparently because there is no data slot in a D interface. Is
> > then an interface a kind of data-less superclass? Or is there something I
> > misunderstand?
>
> Interfaces describe what can something of that type can do, not what it has.
> Data fields are not allowed only function signatures and functions that
> perform local modifications.
Thank you for the clarification.
> > auto range = ...;
> > while (range.continues) {
> > doSomethingWith(range.element);
> > range.step();
> > }
>
> Note that you are not actually using a Range as it is defined by D.
Yes, that's precisely what I meant with "experimenting around this notion" [of
range].
Denis
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