module Loop:sig..end
val fold_left : ('a -> int -> 'a) -> 'a -> int -> 'aLoop.fold_left f v n calls f in a folded way over
the v parameter n times.
val iter : (unit -> unit) -> int -> unitLoop.iter f n calls f repeatedly n times.
val iteri : (int -> unit) -> int -> unitLoop.iteri f n calls f repeatedly n times.