carray 0.0.2 · OCaml Package

type 'a t

The type of C arrays

val length : 'a t -> int

Return the length (number of elements) of the given array

val get : 'a t -> int -> 'a

get a n gets an returns the element number n of the array a. The first element has number 0. The last element has number length length - 1.

val set : 'a t -> 'a -> int -> unit

set a n x modifies array a in place, replacing element number n with x

val make : int -> 'a -> 'a t

make n x returns a fresh array of length n, initialized with x. Each element of the array is a fresh copy of a. This is different from Array.make

val init : int -> (int -> 'a) -> 'a t

init n f returns a fresh array of length n, with element number i initialized to the result of f i. In other terms, init n f tabulates the results of f applied to the integers 0 to n-1.

val append : 'a t -> 'a t -> 'a t

append v1 v2 returns a fresh array containing the concatenation of the arrays v1 and v2.

Raises Invalid_argument if length v1 + length v2 > Sys.max_array_length

val concat : 'a t list -> 'a t

Same as append, but concatenates a list of arrays

val sub : 'a t -> int -> int -> 'a t

sub a pos len returns a fresh array of length len, containing the elements number pos to pos + len - 1 of array a.

val copy : 'a t -> 'a t

copy a returns a fresh copy of a

val fill : 'a t -> int -> int -> 'a -> unit

fill a pos len x modifies the array a in place, storing x in elements number pos to pos + len - 1.

Raises Invalid_argument if pos and len do not designate a valid subarray of a.

val blit : 'a t -> int -> 'a t -> int -> int -> unit

blit src src_pos dst dst_pos len copies len elements from array src, starting at element number src_pos, to array dst, starting at element number dst_pos. It works correctly even if src and dst are the same array, and the source and destination chunks overlap.

Raises Invalid_argument if src_pos and len do not designate a valid subarray of src, or if dst_pos and len do not designate a valid subarray of dst.

val of_list : 'a list -> 'a t

of_list l returns a C array with the same content than the list l

val to_list : 'a t -> 'a list

to_list a returns a Caml list with the same content than the array a

Iterators

val iter : ('a -> unit) -> 'a t -> unit

iter f a iterates f over a

val iteri : (int -> 'a -> unit) -> 'a t -> unit

Same as iter, but the function is applied to the index of the element as first argument, and the element itself as second argument

val map : ('a -> 'b) -> 'a t -> 'b t

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.(length a - 1) |].

val mapi : (int -> 'a -> 'b) -> 'a t -> 'b t

Same as map, but the function is applied to the index of the element as first argument, and the element itself as second argument.

Iterators on two arrays

Array scanning

val for_all : ('a -> bool) -> 'a t -> bool

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

val exists : ('a -> bool) -> 'a t -> bool

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

val mem : 'a -> 'a t -> bool

mem a set is true if and only if a is structurally equal to an element of l (i.e. there is an x in l such that compare a x = 0).

Arrays of pairs

Sorting

Arrays and Sequences

Additional functions compared to the module Array

val sub_noalloc : 'a t -> int -> int -> 'a t

sub_noalloc a pos len is the same than sub but does not perform allocation. The elements of the output are physically the same than the input. Consequently, modifying the elements of the input will modify the output, and inversely.

val of_array : 'a array -> 'a t

of_array a builds a C array with the same content than the Caml array a

val to_array : 'a t -> 'a array

to_array a returns a Caml array with the same content than the C array a

package carray