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+(***********************************************************************)
+(*                                                                     *)
+(*                           Objective Caml                            *)
+(*                                                                     *)
+(*            Xavier Leroy, projet Cristal, INRIA Rocquencourt         *)
+(*                                                                     *)
+(*  Copyright 1996 Institut National de Recherche en Informatique et   *)
+(*  en Automatique.  All rights reserved.  This file is distributed    *)
+(*  under the terms of the GNU Library General Public License, with    *)
+(*  the special exception on linking described in file ../LICENSE.     *)
+(*                                                                     *)
+(***********************************************************************)
+
+(* $Id$ *)
+
+(** Array operations. *)
+
+external length : 'a array -> int = "%array_length"
+(** Return the length (number of elements) of the given array. *)
+
+external get : 'a array -> int -> 'a = "%array_safe_get"
+(** [Array.get a n] returns the element number [n] of array [a].
+   The first element has number 0.
+   The last element has number [Array.length a - 1].
+   You can also write [a.(n)] instead of [Array.get a n].
+
+   Raise [Invalid_argument "index out of bounds"]
+   if [n] is outside the range 0 to [(Array.length a - 1)]. *)
+
+external set : 'a array -> int -> 'a -> unit = "%array_safe_set"
+(** [Array.set a n x] modifies array [a] in place, replacing
+   element number [n] with [x].
+   You can also write [a.(n) <- x] instead of [Array.set a n x].
+
+   Raise [Invalid_argument "index out of bounds"]
+   if [n] is outside the range 0 to [Array.length a - 1]. *)
+
+external make : int -> 'a -> 'a array = "caml_make_vect"
+(** [Array.make n x] returns a fresh array of length [n],
+   initialized with [x].
+   All the elements of this new array are initially
+   physically equal to [x] (in the sense of the [==] predicate).
+   Consequently, if [x] is mutable, it is shared among all elements
+   of the array, and modifying [x] through one of the array entries
+   will modify all other entries at the same time.
+
+   Raise [Invalid_argument] if [n < 0] or [n > Sys.max_array_length].
+   If the value of [x] is a floating-point number, then the maximum
+   size is only [Sys.max_array_length / 2].*)
+
+external create : int -> 'a -> 'a array = "caml_make_vect"
+(** @deprecated [Array.create] is an alias for {!ArrayLabels.make}. *)
+
+val init : int -> f:(int -> 'a) -> 'a array
+(** [Array.init n f] returns a fresh array of length [n],
+   with element number [i] initialized to the result of [f i].
+   In other terms, [Array.init n f] tabulates the results of [f]
+   applied to the integers [0] to [n-1].
+
+   Raise [Invalid_argument] if [n < 0] or [n > Sys.max_array_length].
+   If the return type of [f] is [float], then the maximum
+   size is only [Sys.max_array_length / 2].*)
+
+val make_matrix : dimx:int -> dimy:int -> 'a -> 'a array array
+(** [Array.make_matrix dimx dimy e] returns a two-dimensional array
+   (an array of arrays) with first dimension [dimx] and
+   second dimension [dimy]. All the elements of this new matrix
+   are initially physically equal to [e].
+   The element ([x,y]) of a matrix [m] is accessed
+   with the notation [m.(x).(y)].
+
+   Raise [Invalid_argument] if [dimx] or [dimy] is negative or
+   greater than [Sys.max_array_length].
+   If the value of [e] is a floating-point number, then the maximum
+   size is only [Sys.max_array_length / 2]. *)
+
+val create_matrix : dimx:int -> dimy:int -> 'a -> 'a array array
+(** @deprecated [Array.create_matrix] is an alias for
+   {!ArrayLabels.make_matrix}. *)
+
+val append : 'a array -> 'a array -> 'a array
+(** [Array.append v1 v2] returns a fresh array containing the
+   concatenation of the arrays [v1] and [v2]. *)
+
+val concat : 'a array list -> 'a array
+(** Same as [Array.append], but concatenates a list of arrays. *)
+
+val sub : 'a array -> pos:int -> len:int -> 'a array
+(** [Array.sub a start len] returns a fresh array of length [len],
+   containing the elements number [start] to [start + len - 1]
+   of array [a].
+
+   Raise [Invalid_argument "Array.sub"] if [start] and [len] do not
+   designate a valid subarray of [a]; that is, if
+   [start < 0], or [len < 0], or [start + len > Array.length a]. *)
+
+val copy : 'a array -> 'a array
+(** [Array.copy a] returns a copy of [a], that is, a fresh array
+   containing the same elements as [a]. *)
+
+val fill : 'a array -> pos:int -> len:int -> 'a -> unit
+(** [Array.fill a ofs len x] modifies the array [a] in place,
+   storing [x] in elements number [ofs] to [ofs + len - 1].
+
+   Raise [Invalid_argument "Array.fill"] if [ofs] and [len] do not
+   designate a valid subarray of [a]. *)
+
+val blit :
+  src:'a array -> src_pos:int -> dst:'a array -> dst_pos:int -> len:int ->
+    unit
+(** [Array.blit v1 o1 v2 o2 len] copies [len] elements
+   from array [v1], starting at element number [o1], to array [v2],
+   starting at element number [o2]. It works correctly even if
+   [v1] and [v2] are the same array, and the source and
+   destination chunks overlap.
+
+   Raise [Invalid_argument "Array.blit"] if [o1] and [len] do not
+   designate a valid subarray of [v1], or if [o2] and [len] do not
+   designate a valid subarray of [v2]. *)
+
+val to_list : 'a array -> 'a list
+(** [Array.to_list a] returns the list of all the elements of [a]. *)
+
+val of_list : 'a list -> 'a array
+(** [Array.of_list l] returns a fresh array containing the elements
+   of [l]. *)
+
+val iter : f:('a -> unit) -> 'a array -> unit
+(** [Array.iter f a] applies function [f] in turn to all
+   the elements of [a].  It is equivalent to
+   [f a.(0); f a.(1); ...; f a.(Array.length a - 1); ()]. *)
+
+val map : f:('a -> 'b) -> 'a array -> 'b array
+(** [Array.map f a] applies function [f] to all the elements of [a],
+   and builds an array with the results returned by [f]:
+   [[| f a.(0); f a.(1); ...; f a.(Array.length a - 1) |]]. *)
+
+val iteri : f:(int -> 'a -> unit) -> 'a array -> unit
+(** Same as {!ArrayLabels.iter}, but the
+   function is applied to the index of the element as first argument,
+   and the element itself as second argument. *)
+
+val mapi : f:(int -> 'a -> 'b) -> 'a array -> 'b array
+(** Same as {!ArrayLabels.map}, but the
+   function is applied to the index of the element as first argument,
+   and the element itself as second argument. *)
+
+val fold_left : f:('a -> 'b -> 'a) -> init:'a -> 'b array -> 'a
+(** [Array.fold_left f x a] computes
+   [f (... (f (f x a.(0)) a.(1)) ...) a.(n-1)],
+   where [n] is the length of the array [a]. *)
+
+val fold_right : f:('b -> 'a -> 'a) -> 'b array -> init:'a -> 'a
+(** [Array.fold_right f a x] computes
+   [f a.(0) (f a.(1) ( ... (f a.(n-1) x) ...))],
+   where [n] is the length of the array [a]. *)
+
+
+(** {6 Sorting} *)
+
+
+val sort : cmp:('a -> 'a -> int) -> 'a array -> unit
+(** Sort an array in increasing order according to a comparison
+   function.  The comparison function must return 0 if its arguments
+   compare as equal, a positive integer if the first is greater,
+   and a negative integer if the first is smaller (see below for a
+   complete specification).  For example, {!Pervasives.compare} is
+   a suitable comparison function, provided there are no floating-point
+   NaN values in the data.  After calling [Array.sort], the
+   array is sorted in place in increasing order.
+   [Array.sort] is guaranteed to run in constant heap space
+   and (at most) logarithmic stack space.
+
+   The current implementation uses Heap Sort.  It runs in constant
+   stack space.
+
+   Specification of the comparison function:
+   Let [a] be the array and [cmp] the comparison function.  The following
+   must be true for all x, y, z in a :
+-   [cmp x y] > 0 if and only if [cmp y x] < 0
+-   if [cmp x y] >= 0 and [cmp y z] >= 0 then [cmp x z] >= 0
+
+   When [Array.sort] returns, [a] contains the same elements as before,
+   reordered in such a way that for all i and j valid indices of [a] :
+-   [cmp a.(i) a.(j)] >= 0 if and only if i >= j
+*)
+
+val stable_sort : cmp:('a -> 'a -> int) -> 'a array -> unit
+(** Same as {!ArrayLabels.sort}, but the sorting algorithm is stable (i.e.
+   elements that compare equal are kept in their original order) and
+   not guaranteed to run in constant heap space.
+
+   The current implementation uses Merge Sort. It uses [n/2]
+   words of heap space, where [n] is the length of the array.
+   It is usually faster than the current implementation of {!ArrayLabels.sort}.
+*)
+
+val fast_sort : cmp:('a -> 'a -> int) -> 'a array -> unit
+(** Same as {!Array.sort} or {!Array.stable_sort}, whichever is faster
+    on typical input.
+*)
+
+
+(**/**)
+
+(** {6 Undocumented functions} *)
+
+external unsafe_get : 'a array -> int -> 'a = "%array_unsafe_get"
+external unsafe_set : 'a array -> int -> 'a -> unit = "%array_unsafe_set"