[TDPL] arrays of D future

[Tyro]

== Quote from Lutger (lutger.blijdestijn at gmail.com)'s article
>  wrote:
> > Andrei,
> >
> > I must say that the reading is absolutely enjoyable. I do have one
> > question regarding the StackImpl example on page 234. Are you
forecasting
> > future functionality that arrays will support with your use of
.empty, .back,
> > and .popBack or am I too na�ve to understand that I need to
implement this
> > functionality in order for your example to compile?
> These functions are implemented in std.array, you only need to
import that
> module.

Thanks.