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Add optional transform function to CCLazy_list.of_list

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This commit is contained in:
Nicola Mometto 2018-03-06 10:48:39 +00:00
parent 8d3981d983
commit db97226081
2 changed files with 3 additions and 3 deletions
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4
src/iter/CCLazy_list.ml
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@ -102,9 +102,9 @@ let rec of_gen g =
Q.(list int) (fun l -> l = (Gen.of_list l |> of_gen |> to_list))
*)
let rec of_list = function
let rec of_list ?(f = fun x -> x) = function
| [] -> empty
| x :: tl -> cons x (of_list tl)
| x :: tl -> cons (f x) (of_list ~f tl)
let to_list_rev l =
let rec aux acc = function

2
src/iter/CCLazy_list.mli
View file

@ -56,7 +56,7 @@ type 'a gen = unit -> 'a option
val of_gen : 'a gen -> 'a t
val of_list : 'a list -> 'a t
val of_list : ?f:('a -> 'b) -> 'a list -> 'b t
val to_list : 'a t -> 'a list