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Man Pages


Manual Reference Pages  -  BIGARRAY.ARRAY1 (3)

NAME

Bigarray.Array1 - One-dimensional arrays.

CONTENTS

Module
Documentation

Module

Module Bigarray.Array1

Documentation

Module Array1
: sig end

One-dimensional arrays. The Array1 structure provides operations similar to those of Bigarray.Genarray , but specialized to the case of one-dimensional arrays. (The Array2 and Array3 structures below provide operations specialized for two- and three-dimensional arrays.) Statically knowing the number of dimensions of the array allows faster operations, and more precise static type-checking.

type (’a, ’b, ’c) t

The type of one-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 -> (’a, ’b, ’c) t

Array1.create kind layout dim returns a new bigarray of one dimension, whose size is dim . kind and layout determine the array element kind and the array layout as described for Genarray.create .

val dim : (’a, ’b, ’c) t -> int

Return the size (dimension) of the given one-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 -> ’a

Array1.get a x , or alternatively a.{x} , returns the element of a at index x . x must be greater or equal than 0 and strictly less than Array1.dim a if a has C layout. If a has Fortran layout, x must be greater or equal than 1 and less or equal than Array1.dim a . Otherwise, Invalid_argument is raised.

val set : (’a, ’b, ’c) t -> int -> ’a -> unit

Array1.set a x v , also written a.{x} <- v , stores the value v at index x in a . x must be inside the bounds of a as described in Bigarray.Array1.get ; otherwise, Invalid_argument is raised.

val sub : (’a, ’b, ’c) t -> int -> int -> (’a, ’b, ’c) t

Extract a sub-array of the given one-dimensional big array. See Genarray.sub_left for more details.

val blit : (’a, ’b, ’c) t -> (’a, ’b, ’c) t -> unit

Copy the first big array to the second big array. See Genarray.blit for more details.

val fill : (’a, ’b, ’c) t -> ’a -> unit

Fill the given big array with the given value. See Genarray.fill for more details.

val of_array : (’a, ’b) Bigarray.kind -> ’c Bigarray.layout -> ’a array -> (’a, ’b, ’c) t

Build a one-dimensional big array initialized from the given array.

val map_file : Unix.file_descr -> ?pos:int64 -> (’a, ’b) Bigarray.kind -> ’c Bigarray.layout -> bool -> int -> (’a, ’b, ’c) t

Memory mapping of a file as a one-dimensional big array. See Bigarray.Genarray.map_file for more details.

val unsafe_get : (’a, ’b, ’c) t -> int -> ’a

Like Bigarray.Array1.get , but bounds checking is not always performed. Use with caution and only when the program logic guarantees that the access is within bounds.

val unsafe_set : (’a, ’b, ’c) t -> int -> ’a -> unit

Like Bigarray.Array1.set , but bounds checking is not always performed. Use with caution and only when the program logic guarantees that the access is within bounds.

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OCamldoc BIGARRAY.ARRAY1 (3) 2016-03-17

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