19.29 | Module `StdLabels`: standard labeled libraries

> This meta-module provides labelized version of the `Array`, `List` and `String` modules.
> They only differ by their labels. Detailed interfaces can be found in `arrayLabels.mli`, `listLabels.mli` and `stringLabels.mli`.

    module Array : sig
      external length : 'a array -> int
      external get : 'a array -> int -> 'a
      external set : 'a array -> int -> 'a -> unit
      external make : int -> 'a -> 'a array
      external create : int -> 'a -> 'a array
      val init : int -> f:(int -> 'a) -> 'a array
      val make_matrix : dimx:int -> dimy:int -> 'a -> 'a array array
      val create_matrix : dimx:int -> dimy:int -> 'a -> 'a array array
      val append : 'a array -> 'a array -> 'a array
      val concat : 'a array list -> 'a array
      val sub : 'a array -> pos:int -> len:int -> 'a array
      val copy : 'a array -> 'a array
      val fill : 'a array -> pos:int -> len:int -> 'a -> unit
      val blit :
        src:'a array -> src_pos:int ->
        dst:'a array -> dst_pos:int -> len:int -> unit
      val to_list : 'a array -> 'a list
      val of_list : 'a list -> 'a array
      val iter : f:('a -> unit) -> 'a array -> unit
      val map : f:('a -> 'b) -> 'a array -> 'b array
      val iteri : f:(int -> 'a -> unit) -> 'a array -> unit
      val mapi : f:(int -> 'a -> 'b) -> 'a array -> 'b array
      val fold_left : f:('a -> 'b -> 'a) -> init:'a -> 'b array -> 'a
      val fold_right : f:('a -> 'b -> 'b) -> 'a array -> init:'b -> 'b
      val sort : cmp:('a -> 'a -> int) -> 'a array -> unit
      val stable_sort : cmp:('a -> 'a -> int) -> 'a array -> unit
      external unsafe_get : 'a array -> int -> 'a
      external unsafe_set : 'a array -> int -> 'a -> unit
    end
    module List : sig
      val length : 'a list -> int
      val hd : 'a list -> 'a
      val tl : 'a list -> 'a list
      val nth : 'a list -> int -> 'a
      val rev : 'a list -> 'a list
      val append : 'a list -> 'a list -> 'a list
      val rev_append : 'a list -> 'a list -> 'a list
      val concat : 'a list list -> 'a list
      val flatten : 'a list list -> 'a list
      val iter : f:('a -> unit) -> 'a list -> unit
      val map : f:('a -> 'b) -> 'a list -> 'b list
      val rev_map : f:('a -> 'b) -> 'a list -> 'b list
      val fold_left : f:('a -> 'b -> 'a) -> init:'a -> 'b list -> 'a
      val fold_right : f:('a -> 'b -> 'b) -> 'a list -> init:'b -> 'b
      val iter2 : f:('a -> 'b -> unit) -> 'a list -> 'b list -> unit
      val map2 : f:('a -> 'b -> 'c) -> 'a list -> 'b list -> 'c list
      val rev_map2 : f:('a -> 'b -> 'c) -> 'a list -> 'b list -> 'c list
      val fold_left2 :
        f:('a -> 'b -> 'c -> 'a) -> init:'a -> 'b list -> 'c list -> 'a
      val fold_right2 :
        f:('a -> 'b -> 'c -> 'c) -> 'a list -> 'b list -> init:'c -> 'c
      val for_all : f:('a -> bool) -> 'a list -> bool
      val exists : f:('a -> bool) -> 'a list -> bool
      val for_all2 : f:('a -> 'b -> bool) -> 'a list -> 'b list -> bool
      val exists2 : f:('a -> 'b -> bool) -> 'a list -> 'b list -> bool
      val mem : 'a -> set:'a list -> bool
      val memq : 'a -> set:'a list -> bool
      val find : f:('a -> bool) -> 'a list -> 'a
      val filter : f:('a -> bool) -> 'a list -> 'a list
      val find_all : f:('a -> bool) -> 'a list -> 'a list
      val partition : f:('a -> bool) -> 'a list -> 'a list * 'a list
      val assoc : 'a -> ('a * 'b) list -> 'b
      val assq : 'a -> ('a * 'b) list -> 'b
      val mem_assoc : 'a -> map:('a * 'b) list -> bool
      val mem_assq : 'a -> map:('a * 'b) list -> bool
      val remove_assoc : 'a -> ('a * 'b) list -> ('a * 'b) list
      val remove_assq : 'a -> ('a * 'b) list -> ('a * 'b) list
      val split : ('a * 'b) list -> 'a list * 'b list
      val combine : 'a list -> 'b list -> ('a * 'b) list
      val sort : cmp:('a -> 'a -> int) -> 'a list -> 'a list
      val stable_sort : cmp:('a -> 'a -> int) -> 'a list -> 'a list
    end
    module String : sig
      external length : string -> int
      external get : string -> int -> char
      external set : string -> int -> char -> unit
      external create : int -> string
      val make : int -> char -> string
      val copy : string -> string
      val sub : string -> pos:int -> len:int -> string
      val fill : string -> pos:int -> len:int -> char -> unit
      val blit :
        src:string -> src_pos:int -> dst:string -> dst_pos:int -> len:int -> unit
      val concat : sep:string -> string list -> string
      val escaped : string -> string
      val index : string -> char -> int
      val rindex : string -> char -> int
      val index_from : string -> int -> char -> int
      val rindex_from : string -> int -> char -> int
      val contains : string -> char -> bool
      val contains_from : string -> int -> char -> bool
      val rcontains_from : string -> int -> char -> bool
      val uppercase : string -> string
      val lowercase : string -> string
      val capitalize : string -> string
      val uncapitalize : string -> string
      external unsafe_get : string -> int -> char
      external unsafe_set : string -> int -> char -> unit
      external unsafe_blit :
        src:string -> src_pos:int -> dst:string -> dst_pos:int -> len:int -> unit
      external unsafe_fill : string -> pos:int -> len:int -> char -> unit
    end