(rchunks len src)
  len: an int
  src: an arr
  returns an iter
F

Iterates over non-overlapping sub-arrays, in reverse order.

Each array produced by the iterator is newly-allocated and mutable. If the length of src is not an exact multiple of len, the final array will be shorter than len.

(prn ..(rchunks 2 '(0 1 2 3 4))) ; prints (3 4) (1 2) (0)
←chunks-exact
⭡
rchunks-exact→