Templates problem

[data pulverizer via Digitalmars-d-learn]

On Wednesday, 7 September 2016 at 20:57:15 UTC, bachmeier wrote:
> What are you doing with Rcpp that you can't do with D?

That's a very good point, there's nothing that R + C++ can do 
that is out of D's reach. But, I wander if we can go further ....