module Array2: sig .. end
Two-dimensional arrays. The
Array2 structure provides operations
similar to those of
Bigarray.Genarray, but specialized to the
case of two-dimensional arrays.
type ('a, 'b, 'c) t
The type of two-dimensional big arrays whose elements have
OCaml type 'a, representation kind 'b, and memory layout 'c.
val create : ('a, 'b) Bigarray.kind ->
'c Bigarray.layout -> int -> int -> ('a, 'b, 'c) t
Array2.create kind layout dim1 dim2 returns a new bigarray of
two dimension, whose size is
dim1 in the first dimension
and
dim2 in the second dimension.
kind and
layout
determine the array element kind and the array layout
as described for
Bigarray.Genarray.create.
val dim1 : ('a, 'b, 'c) t -> int
Return the first dimension of the given two-dimensional big array.
val dim2 : ('a, 'b, 'c) t -> int
Return the second dimension of the given two-dimensional big array.
val kind : ('a, 'b, 'c) t -> ('a, 'b) Bigarray.kind
Return the kind of the given big array.
val layout : ('a, 'b, 'c) t -> 'c Bigarray.layout
Return the layout of the given big array.
val get : ('a, 'b, 'c) t -> int -> int -> 'a
Array2.get a x y, also written
a.{x,y},
returns the element of
a at coordinates (
x,
y).
x and
y must be within the bounds
of
a, as described for
Bigarray.Genarray.get;
otherwise,
Invalid_argument is raised.
val set : ('a, 'b, 'c) t -> int -> int -> 'a -> unit
Array2.set a x y v, or alternatively
a.{x,y} <- v,
stores the value
v at coordinates (
x,
y) in
a.
x and
y must be within the bounds of
a,
as described for
Bigarray.Genarray.set;
otherwise,
Invalid_argument is raised.
val blit : ('a, 'b, 'c) t -> ('a, 'b, 'c) t -> unit
val fill : ('a, 'b, 'c) t -> 'a -> unit
val of_array : ('a, 'b) Bigarray.kind ->
'c Bigarray.layout -> 'a array array -> ('a, 'b, 'c) t
Build a two-dimensional big array initialized from the
given array of arrays.
val unsafe_get : ('a, 'b, 'c) t -> int -> int -> 'a
val unsafe_set : ('a, 'b, 'c) t -> int -> int -> 'a -> unit