Why is the interleave_view missing in the range-v3 library?

Question

In Eric Niebler's range-v3 calendar example he uses interleave followed by chunk to transpose a matrix.

I wonder why interleave is not part of the range-v3 library...

Answer 1

Lack of time, and some unsolved design difficulties. For instance, what does it mean to interleave ranges of different lengths? That wasn't a problem in the calendar example, but it's a question that needs to have an answer before the interleave view can be part of range-v3.