| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Data.Primitive.PrimArray
- data PrimArray a = PrimArray ByteArray#
- data MutablePrimArray s a = MutablePrimArray (MutableByteArray# s)
- newPrimArray :: forall m a. (PrimMonad m, Prim a) => Int -> m (MutablePrimArray (PrimState m) a)
- readPrimArray :: (Prim a, PrimMonad m) => MutablePrimArray (PrimState m) a -> Int -> m a
- writePrimArray :: (Prim a, PrimMonad m) => MutablePrimArray (PrimState m) a -> Int -> a -> m ()
- indexPrimArray :: forall a. Prim a => PrimArray a -> Int -> a
- unsafeFreezePrimArray :: PrimMonad m => MutablePrimArray (PrimState m) a -> m (PrimArray a)
- unsafeThawPrimArray :: PrimMonad m => PrimArray a -> m (MutablePrimArray (PrimState m) a)
- copyPrimArray :: forall m a. (PrimMonad m, Prim a) => MutablePrimArray (PrimState m) a -> Int -> PrimArray a -> Int -> Int -> m ()
- copyMutablePrimArray :: forall m a. (PrimMonad m, Prim a) => MutablePrimArray (PrimState m) a -> Int -> MutablePrimArray (PrimState m) a -> Int -> Int -> m ()
- setPrimArray :: (Prim a, PrimMonad m) => MutablePrimArray (PrimState m) a -> Int -> Int -> a -> m ()
- sameMutablePrimArray :: MutablePrimArray s a -> MutablePrimArray s a -> Bool
- getSizeofMutablePrimArray :: forall m a. (PrimMonad m, Prim a) => MutablePrimArray (PrimState m) a -> m Int
Types
data MutablePrimArray s a Source #
Mutable primitive arrays associated with a primitive state token
Constructors
| MutablePrimArray (MutableByteArray# s) |
Allocation
newPrimArray :: forall m a. (PrimMonad m, Prim a) => Int -> m (MutablePrimArray (PrimState m) a) Source #
Element Access
readPrimArray :: (Prim a, PrimMonad m) => MutablePrimArray (PrimState m) a -> Int -> m a Source #
writePrimArray :: (Prim a, PrimMonad m) => MutablePrimArray (PrimState m) a -> Int -> a -> m () Source #
indexPrimArray :: forall a. Prim a => PrimArray a -> Int -> a Source #
Read a primitive value from the array.
Freezing and Thawing
unsafeFreezePrimArray :: PrimMonad m => MutablePrimArray (PrimState m) a -> m (PrimArray a) Source #
Convert a mutable byte array to an immutable one without copying. The array should not be modified after the conversion.
unsafeThawPrimArray :: PrimMonad m => PrimArray a -> m (MutablePrimArray (PrimState m) a) Source #
Convert an immutable array to a mutable one without copying. The original array should not be used after the conversion.
Block Operations
Arguments
| :: (PrimMonad m, Prim a) | |
| => MutablePrimArray (PrimState m) a | destination array |
| -> Int | offset into destination array |
| -> PrimArray a | source array |
| -> Int | offset into source array |
| -> Int | number of bytes to copy |
| -> m () |
Copy part of an array into another mutable array.
Arguments
| :: (PrimMonad m, Prim a) | |
| => MutablePrimArray (PrimState m) a | destination array |
| -> Int | offset into destination array |
| -> MutablePrimArray (PrimState m) a | source array |
| -> Int | offset into source array |
| -> Int | number of bytes to copy |
| -> m () |
Copy part of a mutable array into another mutable array. In the case that the destination and source arrays are the same, the regions may overlap.
Arguments
| :: (Prim a, PrimMonad m) | |
| => MutablePrimArray (PrimState m) a | array to fill |
| -> Int | offset into array |
| -> Int | number of values to fill |
| -> a | value to fill with |
| -> m () |
Fill a slice of a mutable byte array with a value.
Information
sameMutablePrimArray :: MutablePrimArray s a -> MutablePrimArray s a -> Bool Source #
Check if the two arrays refer to the same memory block.
getSizeofMutablePrimArray Source #
Arguments
| :: (PrimMonad m, Prim a) | |
| => MutablePrimArray (PrimState m) a | array |
| -> m Int |
Get the size of the mutable array.