Is there a smart way to process a range of range by front ?

[Martin Nowak via Digitalmars-d-learn]

On Wednesday, 23 September 2015 at 21:30:37 UTC, BBasile wrote:
> auto interleave(RoR)(RoR r)
> {
>     return r.transposed.join;

If you use joiner it will even be lazy and avoid the allocation.