Module Array: array operations
val length : 'a array -> int
-
Return the length (number of elements) of the given array.
val get: 'a array -> int -> 'a
-
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.
Raise Invalid_argument "Array.get" if n is outside the range
0 to (Array.length a - 1).
You can also write a.(n) instead of Array.get a n.
val set: 'a array -> int -> 'a -> unit
-
Array.set a n x modifies array a in place, replacing
element number n with x.
Raise Invalid_argument "Array.set" if n is outside the range
0 to Array.length a - 1.
You can also write a.(n) <- x instead of Array.set a n x.
val make: int -> 'a -> 'a array
val create: int -> 'a -> 'a array
-
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.
val init: int -> (int -> 'a) -> 'a array
-
Array.init n f returns a fresh array of length n,
with element number i equal to f i.
val make_matrix: int -> int -> 'a -> 'a array array
val create_matrix: int -> 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).
val append: 'a array -> 'a array -> 'a array
-
Array.append v1 v2 returns a fresh array containing the
concatenation of arrays v1 and v2.
val concat: 'a array list -> 'a array
-
Same as Array.append, but catenates a list of arrays.
val sub: 'a array -> int -> 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 -> int -> 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: 'a array -> int -> 'a array -> int -> 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: ('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: ('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: (int -> 'a -> unit) -> 'a array -> unit
val mapi: (int -> 'a -> 'b) -> 'a array -> 'b array
-
Same as Array.iter and Array.map respectively, but the
function is applied to the index of the element as first argument,
and the element itself as second argument.
val fold_left: ('a -> 'b -> 'a) -> '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: ('b -> 'a -> 'a) -> 'b array -> '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.