The type of C arrays

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

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.

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

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

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.

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

Same as append, but concatenates a list of arrays

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

copy a returns a fresh copy of a

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.

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.

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

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

iter f a iterates f over a

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

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) |].

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

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).

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).

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).

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.

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

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