\ / This software is distributed as is, NO WARRANTY.
V_______________________________________________________________ *)
+let err _ = assert false
+
let start x = x
let id f x = f x
| _ :: tl1, _ :: tl2 -> list_sub_strict f tl1 tl2
| _ -> assert false
+(* this is not tail recursive *)
let rec list_fold_left f map a = function
| [] -> f a
| hd :: tl ->
let f a = list_fold_left f map a tl in
map f a hd
+(* this is not tail recursive *)
let rec list_rev_map_append f map ~tail = function
| [] -> f tail
| hd :: tl ->
let f hd = list_rev_map_append f map ~tail:(hd :: tail) tl in
map f hd
+(* this is not tail recursive *)
let rec list_forall2 f map l1 l2 = match l1, l2 with
| [], [] -> f true
| hd1 :: tl1, hd2 :: tl2 ->
let list_rev =
list_rev_append ~tail:[]
-let list_fold_right f map l a =
- let map f a m = map f m a in
- list_rev (list_fold_left f map a) l
-
-let list_map f =
- list_rev_map (list_rev f)
-
let list_iter f map l =
let map f () x = map f x in
list_fold_left f map () l
+(* this is not tail recursive *)
let rec list_fold_left2 f map a l1 l2 = match l1, l2 with
| [], [] -> f a
| hd1 :: tl1, hd2 :: tl2 ->
- let f a = if a = None then f a else list_fold_left2 f map a tl1 tl2 in
+ let f a = list_fold_left2 f map a tl1 tl2 in
map f a hd1 hd2
- | _ -> f None
+ | _ -> assert false
+
+let list_iter2 f map l1 l2 =
+ let map f () x1 x2 = map f x1 x2 in
+ list_fold_left2 f map () l1 l2
+
+let rec list_fold_right f map l a = match l with
+ | [] -> f a
+ | hd :: tl -> list_fold_right (map f hd) map tl a
+
+let list_map f map l =
+ let map f hd a =
+ let f hd = f (hd :: a) in map f hd
+ in
+ list_fold_right f map l []
+
+let rec list_mem ?(eq=(=)) a = function
+ | [] -> false
+ | hd :: _ when eq a hd -> true
+ | _ :: tl -> list_mem ~eq a tl