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| Data.Array.IO | | Portability | non-portable (uses Data.Array.MArray) | | Stability | experimental | | Maintainer | libraries@haskell.org |
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| Description |
| Mutable boxed and unboxed arrays in the IO monad.
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| Synopsis |
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| IO arrays with boxed elements
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| IO arrays with unboxed elements
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| data IOUArray i e |
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 | |
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| castIOUArray :: IOUArray ix a -> IO (IOUArray ix b) |
| Casts an IOUArray with one element type into one with a
different element type. All the elements of the resulting array
are undefined (unless you know what you're doing...).
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| Overloaded mutable array interface
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| module Data.Array.MArray |
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| Doing I/O with IOUArrays
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| hGetArray |
| :: 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.
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| hPutArray |
| :: 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.
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| Produced by Haddock version 0.8 |
