extlib 1.8.0 · OCaml Package

type 'a t = 'a array

val rev : 'a array -> 'a array

New functions

Array reversal.

val rev_in_place : 'a array -> unit

In-place array reversal. The array argument is updated.

val iter2 : ('a -> 'b -> unit) -> 'a array -> 'b array -> unit

Array.iter2 f [|a1; ...; an|] [|b1; ...; bn|] performs calls f a1 b1; ...; f an bn in that order.

raises Invalid_argument
if the length of a1 does not equal the length of a2.

val map2 : ('a -> 'b -> 'c) -> 'a array -> 'b array -> 'c array

Array.map2 f [|a1; ...; an|] [|b1; ...; bn|] creates new array [|f a1 b1; ...; f an bn|].

raises Invalid_argument
if the length of a1 does not equal the length of a2.

val for_all : ('a -> bool) -> 'a array -> bool

for_all p [a1; ...; an] checks if all elements of the array satisfy the predicate p. That is, it returns (p a1) && (p a2) && ... && (p an).

val exists : ('a -> bool) -> 'a array -> bool

exists p [a1; ...; an] checks if at least one element of the array satisfies the predicate p. That is, it returns (p a1) || (p a2) || ... || (p an).

val mem : 'a -> 'a array -> bool

mem m a is true if and only if m is equal to an element of a.

val memq : 'a -> 'a array -> bool

Same as Array.mem but uses physical equality instead of structural equality to compare array elements.

val find : ('a -> bool) -> 'a array -> 'a

find p a returns the first element of array a that satisfies the predicate p. Raise Not_found if there is no value that satisfies p in the array a.

val findi : ('a -> bool) -> 'a array -> int

findi p a returns the index of the first element of array a that satisfies the predicate p. Raise Not_found if there is no value that satisfies p in the array a.

val filter : ('a -> bool) -> 'a array -> 'a array

filter p a returns all the elements of the array a that satisfy the predicate p. The order of the elements in the input array is preserved.

val find_all : ('a -> bool) -> 'a array -> 'a array

find_all is another name for Array.filter.

val partition : ('a -> bool) -> 'a array -> 'a array * 'a array

partition p a returns a pair of arrays (a1, a2), where a1 is the array of all the elements of a that satisfy the predicate p, and a2 is the array of all the elements of a that do not satisfy p. The order of the elements in the input array is preserved.

Enumerations

val enum : 'a array -> 'a Enum.t

Returns an enumeration of the elements of an array.

val of_enum : 'a Enum.t -> 'a array

Build an array from an enumeration.

Compatibility functions

These functions are reimplemented in extlib when they are missing from the stdlib

val create_float : int -> float array

val make_float : int -> float array

module Floatarray : sig ... end

val for_all2 : ('a -> 'b -> bool) -> 'a array -> 'b array -> bool

Same as Array.for_all, but for a two-argument predicate.

raises Invalid_argument
if the two arrays have different lengths.

val exists2 : ('a -> 'b -> bool) -> 'a array -> 'b array -> bool

Same as Array.exists, but for a two-argument predicate.

raises Invalid_argument
if the two arrays have different lengths.

Old functions

These functions are already part of the Ocaml standard library and have not been modified. Please refer to the Ocaml Manual for documentation.

val length : 'a array -> int

val get : 'a array -> int -> 'a

val set : 'a array -> int -> 'a -> unit

val make : int -> 'a -> 'a array

val create : int -> 'a -> 'a array

val init : int -> (int -> 'a) -> 'a array

val make_matrix : int -> int -> 'a -> 'a array array

val create_matrix : int -> int -> 'a -> 'a array array

val append : 'a array -> 'a array -> 'a array

val concat : 'a array list -> 'a array

val sub : 'a array -> int -> int -> 'a array

val copy : 'a array -> 'a array

val fill : 'a array -> int -> int -> 'a -> unit

val blit : 'a array -> int -> 'a array -> int -> int -> unit

val to_list : 'a array -> 'a list

val of_list : 'a list -> 'a array

val iter : ('a -> unit) -> 'a array -> unit

val map : ('a -> 'b) -> 'a array -> 'b array

val iteri : (int -> 'a -> unit) -> 'a array -> unit

val mapi : (int -> 'a -> 'b) -> 'a array -> 'b array

val fold_left : ('a -> 'b -> 'a) -> 'a -> 'b array -> 'a

val fold_right : ('b -> 'a -> 'a) -> 'b array -> 'a -> 'a

val sort : ('a -> 'a -> int) -> 'a array -> unit

val stable_sort : ('a -> 'a -> int) -> 'a array -> unit

val fast_sort : ('a -> 'a -> int) -> 'a array -> unit

val unsafe_get : 'a array -> int -> 'a

val unsafe_set : 'a array -> int -> 'a -> unit

val to_seq : 'a array -> 'a Stdlib.Seq.t

*_seq functions were introduced in OCaml 4.07.0, and are _not_ implemented in extlib for older OCaml versions

val to_seqi : 'a array -> (int * 'a) Stdlib.Seq.t

val of_seq : 'a Stdlib.Seq.t -> 'a array

package extlib

Enumerations

Compatibility functions

Old functions