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/Haskell 7

Data.Array.IO

Copyright (c) The University of Glasgow 2001
License BSD-style (see the file libraries/base/LICENSE)
Maintainer [email protected]
Stability experimental
Portability non-portable (uses Data.Array.MArray)
Safe Haskell None
Language Haskell2010

Description

Mutable boxed and unboxed arrays in the IO monad.

IO arrays with boxed elements

data IOArray i e :: * -> * -> * Source

An IOArray is a mutable, boxed, non-strict array in the IO monad. The type arguments are as follows:

  • i: the index type of the array (should be an instance of Ix)
  • e: the element type of the array.

Instances

IO arrays with unboxed elements

data IOUArray i e Source

Mutable, unboxed, strict arrays in the IO monad. The type arguments are as follows:

  • i: the index type of the array (should be an instance of Ix)
  • e: the element type of the array. Only certain element types are supported: see Data.Array.MArray for a list of instances.

Instances

Overloaded mutable array interface

module Data.Array.MArray

Doing I/O with IOUArrays

hGetArray Source

Arguments

:: Handle

Handle to read from
-> IOUArray Int Word8

Array in which to place the values
-> Int

Number of Word8s to read
-> IO Int

Returns: the number of Word8s actually read, which might be smaller than the number requested if the end of file was reached.

Reads a number of Word8s from the specified Handle directly into an array.

hPutArray Source

Arguments

:: Handle

Handle to write to
-> IOUArray Int Word8

Array to write from
-> Int

Number of Word8s to write
-> IO ()

Writes an array of Word8 to the specified Handle.

© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/7.10.3/docs/html/libraries/array-0.5.1.0/Data-Array-IO.html