Data.Primitive.PVar

Documentation

PVar has significantly better performance characterisitcs over IORef, STRef and MutVar. This is because value is mutated directly in memory instead of following an extra pointer. Besides better performance there is another consequence of direct mutation, namely that values are always evaluated to normal form when being written into a PVar

Primitive variable

data PVar m a

Mutable variable with primitive value.

Since: 0.1.0

Instances

Prim a => Storable (PVar IO a)

poke+peek will result in a new copy of a PVar

Defined in Data.Primitive.PVar.Internal

Methods

sizeOf :: PVar IO a -> Int

alignment :: PVar IO a -> Int

peekElemOff :: Ptr (PVar IO a) -> Int -> IO (PVar IO a)

pokeElemOff :: Ptr (PVar IO a) -> Int -> PVar IO a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (PVar IO a)

pokeByteOff :: Ptr b -> Int -> PVar IO a -> IO ()

peek :: Ptr (PVar IO a) -> IO (PVar IO a)

poke :: Ptr (PVar IO a) -> PVar IO a -> IO ()

NFData (PVar m a)

Values are already written into PVar in NF, this instance is trivial.

Defined in Data.Primitive.PVar.Internal

Methods

rnf :: PVar m a -> ()

newPVar :: (PrimMonad m, Prim a) => a -> m (PVar m a)

Create a mutable variable in unpinned memory (i.e. GC can move it) with an initial value. This is a prefered way to create a mutable variable, since it will not contribute to memory fragmentation. For pinned memory versions see newPinnedPVar and newAlignedPinnedPVar

Since: 0.1.0

withPVarST

Arguments

:: Prim p

=> p

Initial value assigned to the mutable variable

-> (forall s. PVar (ST s) p -> ST s a)

Action to run

-> a

Result produced by the ST action

Run an ST action on a mutable variable.

Since: 0.1.0

Generic Operations

readPVar :: (PrimMonad m, Prim a) => PVar m a -> m a

Read a value from a mutable variable

Since: 0.1.0

writePVar :: (PrimMonad m, Prim a) => PVar m a -> a -> m ()

Write a value into a mutable variable

Since: 0.1.0

modifyPVar_ :: (PrimMonad m, Prim a) => PVar m a -> (a -> a) -> m ()

Apply a pure function to the contents of a mutable variable.

Since: 0.1.0

modifyPVar :: (PrimMonad m, Prim a) => PVar m a -> (a -> a) -> m a

Apply a pure function to the contents of a mutable variable. Returns the old value.

Since: 0.1.0

modifyPVarM_ :: (PrimMonad m, Prim a) => PVar m a -> (a -> m a) -> m ()

Apply a monadic action to the contents of a mutable variable.

Since: 0.1.0

modifyPVarM :: (PrimMonad m, Prim a) => PVar m a -> (a -> m a) -> m a

Apply a monadic action to the contents of a mutable variable. Returns the old value.

Since: 0.1.0

swapPVars_ :: (PrimMonad m, Prim a) => PVar m a -> PVar m a -> m ()

Swap contents of two mutable variables.

Since: 0.1.0

swapPVars :: (PrimMonad m, Prim a) => PVar m a -> PVar m a -> m (a, a)

Swap contents of two mutable variables. Returns their old values.

Since: 0.1.0

copyPVar

Arguments

:: (PrimMonad m, Prim a)

=> PVar m a

Source variable

-> PVar m a

Destination variable

-> m ()

Copy contents of one mutable variable PVar into another

Since: 0.1.0

sizeOfPVar :: Prim a => PVar m a -> Int

Size in bytes of a value stored inside the mutable variable. PVar itself is neither accessed nor evaluated.

Since: 0.1.0

alignmentPVar :: Prim a => PVar m a -> Int

Alignment in bytes of the value stored inside of the mutable variable. PVar itself is neither accessed nor evaluated.

Since: 0.1.0

Pinned memory

In theory it is unsafe to mix Storable and Prim operations on the same chunk of memory, because some instances can have differnet memory layouts for the same type. This is highly uncommon in practice and if you are intermixing the two concepts together you probably already know what you are doing.

newPinnedPVar :: (PrimMonad m, Prim a) => a -> m (PVar m a)

Create a mutable variable in pinned memory with an initial value.

Since: 0.1.0

newAlignedPinnedPVar :: (PrimMonad m, Prim a) => a -> m (PVar m a)

Create a mutable variable in pinned memory with an initial value and aligned according to its alignment

Since: 0.1.0

withPtrPVar :: (PrimMonad m, Prim a) => PVar n a -> (Ptr a -> m b) -> m (Maybe b)

Apply an action to the Ptr that references the mutable variable, but only if it is backed by pinned memory, cause otherwise it would be unsafe.

Since: 0.1.0

withStorablePVar

Arguments

:: (PrimMonad m, Storable a)

=> a

Initial value

-> (PVar m a -> Ptr a -> m b)

Action to run

-> m b

Apply an action to the newly allocated PVar and to the Ptr that references it. Memory allocated with number of bytes specified by sizeOf a is allocated and pinned, therefore it is safe to operate directly with the pointer as well as over FFI. Returning the pointer from the supplied action would be very unsafe, therefore return the PVar if you still need it afterwards, garbage colelctor will cleanup the memory when it is no longer needed.

Since: 0.1.0

withAlignedStorablePVar

Arguments

:: (PrimMonad m, Storable a)

=> a

Initial value

-> (PVar m a -> Ptr a -> m b)

Action to run

-> m b

Same withStorablePVar, except memory is aligned according to alignment.

Since: 0.1.0

copyPVarToPtr :: (PrimMonad m, Prim a) => PVar m a -> Ptr a -> m ()

Copy contents of a mutable variable PVar into a pointer Ptr

Since: 0.1.0

toForeignPtrPVar :: PVar IO a -> Maybe (ForeignPtr a)

Convert PVar into a ForeignPtr, but only if it is backed by pinned memory.

Since: 0.1.0

isPinnedPVar :: PVar m a -> Bool

Check if PVar is backed by pinned memory or not

Since: 0.1.0

peekPrim :: (Storable a, PrimMonad m) => Ptr a -> m a

Use Storable reading functionality inside the PrimMonad.

Since: 0.1.0

pokePrim :: (Storable a, PrimMonad m) => Ptr a -> a -> m ()

Use Storable wrting functionality inside the PrimMonad.

Since: 0.1.0

Atomic operations

atomicModifyIntPVar :: PrimMonad m => PVar m Int -> (Int -> (Int, a)) -> m a

Apply a function to an integer element of a PVar atomically. Implies a full memory barrier.

Since: 0.1.0

atomicModifyIntPVar_ :: PrimMonad m => PVar m Int -> (Int -> Int) -> m ()

Apply a function to an integer element of a PVar atomically. Returns the old value. Implies a full memory barrier.

Since: 0.1.0

atomicReadIntPVar :: PrimMonad m => PVar m Int -> m Int

Create a new PVar in pinned memory with an initial value in it aligned on the size of an Int. Implies a full memory barrier.

Since: 0.1.0

atomicWriteIntPVar :: PrimMonad m => PVar m Int -> Int -> m ()

Write a value into an PVar atomically. Implies a full memory barrier.

Since: 0.1.0

casIntPVar

Arguments

:: PrimMonad m

=> PVar m Int

Variable to mutate

-> Int

Old expected value

-> Int

New value

-> m Int

Old actual value

Compare and swap. This is a function that is used to implement modifyIntPVar. Implies a full memory barrier.

Since: 0.1.0

atomicAddIntPVar :: PrimMonad m => PVar m Int -> Int -> m Int

Add two numbers, corresponds to + done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

atomicSubIntPVar :: PrimMonad m => PVar m Int -> Int -> m Int

Subtract two numbers, corresponds to subtract done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

atomicAndIntPVar :: PrimMonad m => PVar m Int -> Int -> m Int

Binary conjuction (AND), corresponds to and done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

atomicNandIntPVar :: PrimMonad m => PVar m Int -> Int -> m Int

Binary negation of conjuction (Not AND), corresponds to \x y -> complement (x and y) done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

atomicOrIntPVar :: PrimMonad m => PVar m Int -> Int -> m Int

Binary disjunction (OR), corresponds to or done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

atomicXorIntPVar :: PrimMonad m => PVar m Int -> Int -> m Int

Binary exclusive disjunction (XOR), corresponds to xor done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

atomicNotIntPVar :: PrimMonad m => PVar m Int -> m Int

Binary negation (NOT), corresponds to ones' complement done atomically. Returns the previous value of the mutable variable. Implies a full memory barrier.

Since: 0.1.0

Re-exports

class Prim a

Class of types supporting primitive array operations. This includes interfacing with GC-managed memory (functions suffixed with ByteArray#) and interfacing with unmanaged memory (functions suffixed with Addr#). Endianness is platform-dependent.

Minimal complete definition

sizeOf#, alignment#, indexByteArray#, readByteArray#, writeByteArray#, setByteArray#, indexOffAddr#, readOffAddr#, writeOffAddr#, setOffAddr#

Instances

Prim Char

Defined in Data.Primitive.Types

Methods

sizeOf# :: Char -> Int#

alignment# :: Char -> Int#

indexByteArray# :: ByteArray# -> Int# -> Char

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Char#)

writeByteArray# :: MutableByteArray# s -> Int# -> Char -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Char -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Char

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Char#)

writeOffAddr# :: Addr# -> Int# -> Char -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Char -> State# s -> State# s

Prim Double

Defined in Data.Primitive.Types

Methods

sizeOf# :: Double -> Int#

alignment# :: Double -> Int#

indexByteArray# :: ByteArray# -> Int# -> Double

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Double#)

writeByteArray# :: MutableByteArray# s -> Int# -> Double -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Double -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Double

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Double#)

writeOffAddr# :: Addr# -> Int# -> Double -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Double -> State# s -> State# s

Prim Float

Defined in Data.Primitive.Types

Methods

sizeOf# :: Float -> Int#

alignment# :: Float -> Int#

indexByteArray# :: ByteArray# -> Int# -> Float

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Float#)

writeByteArray# :: MutableByteArray# s -> Int# -> Float -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Float -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Float

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Float#)

writeOffAddr# :: Addr# -> Int# -> Float -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Float -> State# s -> State# s

Prim Int

Defined in Data.Primitive.Types

Methods

sizeOf# :: Int -> Int#

alignment# :: Int -> Int#

indexByteArray# :: ByteArray# -> Int# -> Int

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Int#)

writeByteArray# :: MutableByteArray# s -> Int# -> Int -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Int -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Int

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Int#)

writeOffAddr# :: Addr# -> Int# -> Int -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Int -> State# s -> State# s

Prim Int8

Defined in Data.Primitive.Types

Methods

sizeOf# :: Int8 -> Int#

alignment# :: Int8 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Int8

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Int8#)

writeByteArray# :: MutableByteArray# s -> Int# -> Int8 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Int8 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Int8

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Int8#)

writeOffAddr# :: Addr# -> Int# -> Int8 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Int8 -> State# s -> State# s

Prim Int16

Defined in Data.Primitive.Types

Methods

sizeOf# :: Int16 -> Int#

alignment# :: Int16 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Int16

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Int16#)

writeByteArray# :: MutableByteArray# s -> Int# -> Int16 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Int16 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Int16

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Int16#)

writeOffAddr# :: Addr# -> Int# -> Int16 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Int16 -> State# s -> State# s

Prim Int32

Defined in Data.Primitive.Types

Methods

sizeOf# :: Int32 -> Int#

alignment# :: Int32 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Int32

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Int32#)

writeByteArray# :: MutableByteArray# s -> Int# -> Int32 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Int32 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Int32

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Int32#)

writeOffAddr# :: Addr# -> Int# -> Int32 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Int32 -> State# s -> State# s

Prim Int64

Defined in Data.Primitive.Types

Methods

sizeOf# :: Int64 -> Int#

alignment# :: Int64 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Int64

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Int64#)

writeByteArray# :: MutableByteArray# s -> Int# -> Int64 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Int64 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Int64

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Int64#)

writeOffAddr# :: Addr# -> Int# -> Int64 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Int64 -> State# s -> State# s

Prim Word

Defined in Data.Primitive.Types

Methods

sizeOf# :: Word -> Int#

alignment# :: Word -> Int#

indexByteArray# :: ByteArray# -> Int# -> Word

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Word#)

writeByteArray# :: MutableByteArray# s -> Int# -> Word -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Word -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Word

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Word#)

writeOffAddr# :: Addr# -> Int# -> Word -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Word -> State# s -> State# s

Prim Word8

Defined in Data.Primitive.Types

Methods

sizeOf# :: Word8 -> Int#

alignment# :: Word8 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Word8

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Word8#)

writeByteArray# :: MutableByteArray# s -> Int# -> Word8 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Word8 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Word8

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Word8#)

writeOffAddr# :: Addr# -> Int# -> Word8 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Word8 -> State# s -> State# s

Prim Word16

Defined in Data.Primitive.Types

Methods

sizeOf# :: Word16 -> Int#

alignment# :: Word16 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Word16

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Word16#)

writeByteArray# :: MutableByteArray# s -> Int# -> Word16 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Word16 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Word16

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Word16#)

writeOffAddr# :: Addr# -> Int# -> Word16 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Word16 -> State# s -> State# s

Prim Word32

Defined in Data.Primitive.Types

Methods

sizeOf# :: Word32 -> Int#

alignment# :: Word32 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Word32

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Word32#)

writeByteArray# :: MutableByteArray# s -> Int# -> Word32 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Word32 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Word32

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Word32#)

writeOffAddr# :: Addr# -> Int# -> Word32 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Word32 -> State# s -> State# s

Prim Word64

Defined in Data.Primitive.Types

Methods

sizeOf# :: Word64 -> Int#

alignment# :: Word64 -> Int#

indexByteArray# :: ByteArray# -> Int# -> Word64

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Word64#)

writeByteArray# :: MutableByteArray# s -> Int# -> Word64 -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Word64 -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Word64

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Word64#)

writeOffAddr# :: Addr# -> Int# -> Word64 -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Word64 -> State# s -> State# s

Prim CDev

Defined in Data.Primitive.Types

Methods

sizeOf# :: CDev -> Int#

alignment# :: CDev -> Int#

indexByteArray# :: ByteArray# -> Int# -> CDev

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CDev#)

writeByteArray# :: MutableByteArray# s -> Int# -> CDev -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CDev -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CDev

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CDev#)

writeOffAddr# :: Addr# -> Int# -> CDev -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CDev -> State# s -> State# s

Prim CIno

Defined in Data.Primitive.Types

Methods

sizeOf# :: CIno -> Int#

alignment# :: CIno -> Int#

indexByteArray# :: ByteArray# -> Int# -> CIno

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CIno#)

writeByteArray# :: MutableByteArray# s -> Int# -> CIno -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CIno -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CIno

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CIno#)

writeOffAddr# :: Addr# -> Int# -> CIno -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CIno -> State# s -> State# s

Prim CMode

Defined in Data.Primitive.Types

Methods

sizeOf# :: CMode -> Int#

alignment# :: CMode -> Int#

indexByteArray# :: ByteArray# -> Int# -> CMode

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CMode#)

writeByteArray# :: MutableByteArray# s -> Int# -> CMode -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CMode -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CMode

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CMode#)

writeOffAddr# :: Addr# -> Int# -> CMode -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CMode -> State# s -> State# s

Prim COff

Defined in Data.Primitive.Types

Methods

sizeOf# :: COff -> Int#

alignment# :: COff -> Int#

indexByteArray# :: ByteArray# -> Int# -> COff

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, COff#)

writeByteArray# :: MutableByteArray# s -> Int# -> COff -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> COff -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> COff

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, COff#)

writeOffAddr# :: Addr# -> Int# -> COff -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> COff -> State# s -> State# s

Prim CPid

Defined in Data.Primitive.Types

Methods

sizeOf# :: CPid -> Int#

alignment# :: CPid -> Int#

indexByteArray# :: ByteArray# -> Int# -> CPid

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CPid#)

writeByteArray# :: MutableByteArray# s -> Int# -> CPid -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CPid -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CPid

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CPid#)

writeOffAddr# :: Addr# -> Int# -> CPid -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CPid -> State# s -> State# s

Prim CSsize

Defined in Data.Primitive.Types

Methods

sizeOf# :: CSsize -> Int#

alignment# :: CSsize -> Int#

indexByteArray# :: ByteArray# -> Int# -> CSsize

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CSsize#)

writeByteArray# :: MutableByteArray# s -> Int# -> CSsize -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CSsize -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CSsize

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CSsize#)

writeOffAddr# :: Addr# -> Int# -> CSsize -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CSsize -> State# s -> State# s

Prim CGid

Defined in Data.Primitive.Types

Methods

sizeOf# :: CGid -> Int#

alignment# :: CGid -> Int#

indexByteArray# :: ByteArray# -> Int# -> CGid

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CGid#)

writeByteArray# :: MutableByteArray# s -> Int# -> CGid -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CGid -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CGid

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CGid#)

writeOffAddr# :: Addr# -> Int# -> CGid -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CGid -> State# s -> State# s

Prim CNlink

Defined in Data.Primitive.Types

Methods

sizeOf# :: CNlink -> Int#

alignment# :: CNlink -> Int#

indexByteArray# :: ByteArray# -> Int# -> CNlink

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CNlink#)

writeByteArray# :: MutableByteArray# s -> Int# -> CNlink -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CNlink -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CNlink

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CNlink#)

writeOffAddr# :: Addr# -> Int# -> CNlink -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CNlink -> State# s -> State# s

Prim CUid

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUid -> Int#

alignment# :: CUid -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUid

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUid#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUid -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUid -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUid

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUid#)

writeOffAddr# :: Addr# -> Int# -> CUid -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUid -> State# s -> State# s

Prim CCc

Defined in Data.Primitive.Types

Methods

sizeOf# :: CCc -> Int#

alignment# :: CCc -> Int#

indexByteArray# :: ByteArray# -> Int# -> CCc

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CCc#)

writeByteArray# :: MutableByteArray# s -> Int# -> CCc -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CCc -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CCc

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CCc#)

writeOffAddr# :: Addr# -> Int# -> CCc -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CCc -> State# s -> State# s

Prim CSpeed

Defined in Data.Primitive.Types

Methods

sizeOf# :: CSpeed -> Int#

alignment# :: CSpeed -> Int#

indexByteArray# :: ByteArray# -> Int# -> CSpeed

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CSpeed#)

writeByteArray# :: MutableByteArray# s -> Int# -> CSpeed -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CSpeed -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CSpeed

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CSpeed#)

writeOffAddr# :: Addr# -> Int# -> CSpeed -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CSpeed -> State# s -> State# s

Prim CTcflag

Defined in Data.Primitive.Types

Methods

sizeOf# :: CTcflag -> Int#

alignment# :: CTcflag -> Int#

indexByteArray# :: ByteArray# -> Int# -> CTcflag

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CTcflag#)

writeByteArray# :: MutableByteArray# s -> Int# -> CTcflag -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CTcflag -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CTcflag

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CTcflag#)

writeOffAddr# :: Addr# -> Int# -> CTcflag -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CTcflag -> State# s -> State# s

Prim CRLim

Defined in Data.Primitive.Types

Methods

sizeOf# :: CRLim -> Int#

alignment# :: CRLim -> Int#

indexByteArray# :: ByteArray# -> Int# -> CRLim

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CRLim#)

writeByteArray# :: MutableByteArray# s -> Int# -> CRLim -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CRLim -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CRLim

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CRLim#)

writeOffAddr# :: Addr# -> Int# -> CRLim -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CRLim -> State# s -> State# s

Prim CBlkSize

Defined in Data.Primitive.Types

Methods

sizeOf# :: CBlkSize -> Int#

alignment# :: CBlkSize -> Int#

indexByteArray# :: ByteArray# -> Int# -> CBlkSize

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CBlkSize#)

writeByteArray# :: MutableByteArray# s -> Int# -> CBlkSize -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CBlkSize -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CBlkSize

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CBlkSize#)

writeOffAddr# :: Addr# -> Int# -> CBlkSize -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CBlkSize -> State# s -> State# s

Prim CBlkCnt

Defined in Data.Primitive.Types

Methods

sizeOf# :: CBlkCnt -> Int#

alignment# :: CBlkCnt -> Int#

indexByteArray# :: ByteArray# -> Int# -> CBlkCnt

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CBlkCnt#)

writeByteArray# :: MutableByteArray# s -> Int# -> CBlkCnt -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CBlkCnt -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CBlkCnt

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CBlkCnt#)

writeOffAddr# :: Addr# -> Int# -> CBlkCnt -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CBlkCnt -> State# s -> State# s

Prim CClockId

Defined in Data.Primitive.Types

Methods

sizeOf# :: CClockId -> Int#

alignment# :: CClockId -> Int#

indexByteArray# :: ByteArray# -> Int# -> CClockId

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CClockId#)

writeByteArray# :: MutableByteArray# s -> Int# -> CClockId -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CClockId -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CClockId

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CClockId#)

writeOffAddr# :: Addr# -> Int# -> CClockId -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CClockId -> State# s -> State# s

Prim CFsBlkCnt

Defined in Data.Primitive.Types

Methods

sizeOf# :: CFsBlkCnt -> Int#

alignment# :: CFsBlkCnt -> Int#

indexByteArray# :: ByteArray# -> Int# -> CFsBlkCnt

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CFsBlkCnt#)

writeByteArray# :: MutableByteArray# s -> Int# -> CFsBlkCnt -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CFsBlkCnt -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CFsBlkCnt

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CFsBlkCnt#)

writeOffAddr# :: Addr# -> Int# -> CFsBlkCnt -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CFsBlkCnt -> State# s -> State# s

Prim CFsFilCnt

Defined in Data.Primitive.Types

Methods

sizeOf# :: CFsFilCnt -> Int#

alignment# :: CFsFilCnt -> Int#

indexByteArray# :: ByteArray# -> Int# -> CFsFilCnt

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CFsFilCnt#)

writeByteArray# :: MutableByteArray# s -> Int# -> CFsFilCnt -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CFsFilCnt -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CFsFilCnt

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CFsFilCnt#)

writeOffAddr# :: Addr# -> Int# -> CFsFilCnt -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CFsFilCnt -> State# s -> State# s

Prim CId

Defined in Data.Primitive.Types

Methods

sizeOf# :: CId -> Int#

alignment# :: CId -> Int#

indexByteArray# :: ByteArray# -> Int# -> CId

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CId#)

writeByteArray# :: MutableByteArray# s -> Int# -> CId -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CId -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CId

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CId#)

writeOffAddr# :: Addr# -> Int# -> CId -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CId -> State# s -> State# s

Prim CKey

Defined in Data.Primitive.Types

Methods

sizeOf# :: CKey -> Int#

alignment# :: CKey -> Int#

indexByteArray# :: ByteArray# -> Int# -> CKey

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CKey#)

writeByteArray# :: MutableByteArray# s -> Int# -> CKey -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CKey -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CKey

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CKey#)

writeOffAddr# :: Addr# -> Int# -> CKey -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CKey -> State# s -> State# s

Prim CTimer

Defined in Data.Primitive.Types

Methods

sizeOf# :: CTimer -> Int#

alignment# :: CTimer -> Int#

indexByteArray# :: ByteArray# -> Int# -> CTimer

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CTimer#)

writeByteArray# :: MutableByteArray# s -> Int# -> CTimer -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CTimer -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CTimer

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CTimer#)

writeOffAddr# :: Addr# -> Int# -> CTimer -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CTimer -> State# s -> State# s

Prim Fd

Defined in Data.Primitive.Types

Methods

sizeOf# :: Fd -> Int#

alignment# :: Fd -> Int#

indexByteArray# :: ByteArray# -> Int# -> Fd

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Fd#)

writeByteArray# :: MutableByteArray# s -> Int# -> Fd -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Fd -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Fd

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Fd#)

writeOffAddr# :: Addr# -> Int# -> Fd -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Fd -> State# s -> State# s

Prim CChar

Defined in Data.Primitive.Types

Methods

sizeOf# :: CChar -> Int#

alignment# :: CChar -> Int#

indexByteArray# :: ByteArray# -> Int# -> CChar

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CChar#)

writeByteArray# :: MutableByteArray# s -> Int# -> CChar -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CChar -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CChar

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CChar#)

writeOffAddr# :: Addr# -> Int# -> CChar -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CChar -> State# s -> State# s

Prim CSChar

Defined in Data.Primitive.Types

Methods

sizeOf# :: CSChar -> Int#

alignment# :: CSChar -> Int#

indexByteArray# :: ByteArray# -> Int# -> CSChar

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CSChar#)

writeByteArray# :: MutableByteArray# s -> Int# -> CSChar -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CSChar -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CSChar

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CSChar#)

writeOffAddr# :: Addr# -> Int# -> CSChar -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CSChar -> State# s -> State# s

Prim CUChar

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUChar -> Int#

alignment# :: CUChar -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUChar

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUChar#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUChar -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUChar -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUChar

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUChar#)

writeOffAddr# :: Addr# -> Int# -> CUChar -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUChar -> State# s -> State# s

Prim CShort

Defined in Data.Primitive.Types

Methods

sizeOf# :: CShort -> Int#

alignment# :: CShort -> Int#

indexByteArray# :: ByteArray# -> Int# -> CShort

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CShort#)

writeByteArray# :: MutableByteArray# s -> Int# -> CShort -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CShort -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CShort

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CShort#)

writeOffAddr# :: Addr# -> Int# -> CShort -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CShort -> State# s -> State# s

Prim CUShort

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUShort -> Int#

alignment# :: CUShort -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUShort

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUShort#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUShort -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUShort -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUShort

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUShort#)

writeOffAddr# :: Addr# -> Int# -> CUShort -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUShort -> State# s -> State# s

Prim CInt

Defined in Data.Primitive.Types

Methods

sizeOf# :: CInt -> Int#

alignment# :: CInt -> Int#

indexByteArray# :: ByteArray# -> Int# -> CInt

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CInt#)

writeByteArray# :: MutableByteArray# s -> Int# -> CInt -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CInt -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CInt

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CInt#)

writeOffAddr# :: Addr# -> Int# -> CInt -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CInt -> State# s -> State# s

Prim CUInt

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUInt -> Int#

alignment# :: CUInt -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUInt

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUInt#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUInt -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUInt -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUInt

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUInt#)

writeOffAddr# :: Addr# -> Int# -> CUInt -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUInt -> State# s -> State# s

Prim CLong

Defined in Data.Primitive.Types

Methods

sizeOf# :: CLong -> Int#

alignment# :: CLong -> Int#

indexByteArray# :: ByteArray# -> Int# -> CLong

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CLong#)

writeByteArray# :: MutableByteArray# s -> Int# -> CLong -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CLong -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CLong

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CLong#)

writeOffAddr# :: Addr# -> Int# -> CLong -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CLong -> State# s -> State# s

Prim CULong

Defined in Data.Primitive.Types

Methods

sizeOf# :: CULong -> Int#

alignment# :: CULong -> Int#

indexByteArray# :: ByteArray# -> Int# -> CULong

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CULong#)

writeByteArray# :: MutableByteArray# s -> Int# -> CULong -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CULong -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CULong

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CULong#)

writeOffAddr# :: Addr# -> Int# -> CULong -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CULong -> State# s -> State# s

Prim CLLong

Defined in Data.Primitive.Types

Methods

sizeOf# :: CLLong -> Int#

alignment# :: CLLong -> Int#

indexByteArray# :: ByteArray# -> Int# -> CLLong

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CLLong#)

writeByteArray# :: MutableByteArray# s -> Int# -> CLLong -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CLLong -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CLLong

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CLLong#)

writeOffAddr# :: Addr# -> Int# -> CLLong -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CLLong -> State# s -> State# s

Prim CULLong

Defined in Data.Primitive.Types

Methods

sizeOf# :: CULLong -> Int#

alignment# :: CULLong -> Int#

indexByteArray# :: ByteArray# -> Int# -> CULLong

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CULLong#)

writeByteArray# :: MutableByteArray# s -> Int# -> CULLong -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CULLong -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CULLong

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CULLong#)

writeOffAddr# :: Addr# -> Int# -> CULLong -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CULLong -> State# s -> State# s

Prim CBool

Defined in Data.Primitive.Types

Methods

sizeOf# :: CBool -> Int#

alignment# :: CBool -> Int#

indexByteArray# :: ByteArray# -> Int# -> CBool

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CBool#)

writeByteArray# :: MutableByteArray# s -> Int# -> CBool -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CBool -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CBool

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CBool#)

writeOffAddr# :: Addr# -> Int# -> CBool -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CBool -> State# s -> State# s

Prim CFloat

Defined in Data.Primitive.Types

Methods

sizeOf# :: CFloat -> Int#

alignment# :: CFloat -> Int#

indexByteArray# :: ByteArray# -> Int# -> CFloat

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CFloat#)

writeByteArray# :: MutableByteArray# s -> Int# -> CFloat -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CFloat -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CFloat

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CFloat#)

writeOffAddr# :: Addr# -> Int# -> CFloat -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CFloat -> State# s -> State# s

Prim CDouble

Defined in Data.Primitive.Types

Methods

sizeOf# :: CDouble -> Int#

alignment# :: CDouble -> Int#

indexByteArray# :: ByteArray# -> Int# -> CDouble

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CDouble#)

writeByteArray# :: MutableByteArray# s -> Int# -> CDouble -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CDouble -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CDouble

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CDouble#)

writeOffAddr# :: Addr# -> Int# -> CDouble -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CDouble -> State# s -> State# s

Prim CPtrdiff

Defined in Data.Primitive.Types

Methods

sizeOf# :: CPtrdiff -> Int#

alignment# :: CPtrdiff -> Int#

indexByteArray# :: ByteArray# -> Int# -> CPtrdiff

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CPtrdiff#)

writeByteArray# :: MutableByteArray# s -> Int# -> CPtrdiff -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CPtrdiff -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CPtrdiff

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CPtrdiff#)

writeOffAddr# :: Addr# -> Int# -> CPtrdiff -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CPtrdiff -> State# s -> State# s

Prim CSize

Defined in Data.Primitive.Types

Methods

sizeOf# :: CSize -> Int#

alignment# :: CSize -> Int#

indexByteArray# :: ByteArray# -> Int# -> CSize

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CSize#)

writeByteArray# :: MutableByteArray# s -> Int# -> CSize -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CSize -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CSize

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CSize#)

writeOffAddr# :: Addr# -> Int# -> CSize -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CSize -> State# s -> State# s

Prim CWchar

Defined in Data.Primitive.Types

Methods

sizeOf# :: CWchar -> Int#

alignment# :: CWchar -> Int#

indexByteArray# :: ByteArray# -> Int# -> CWchar

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CWchar#)

writeByteArray# :: MutableByteArray# s -> Int# -> CWchar -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CWchar -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CWchar

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CWchar#)

writeOffAddr# :: Addr# -> Int# -> CWchar -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CWchar -> State# s -> State# s

Prim CSigAtomic

Defined in Data.Primitive.Types

Methods

sizeOf# :: CSigAtomic -> Int#

alignment# :: CSigAtomic -> Int#

indexByteArray# :: ByteArray# -> Int# -> CSigAtomic

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CSigAtomic#)

writeByteArray# :: MutableByteArray# s -> Int# -> CSigAtomic -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CSigAtomic -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CSigAtomic

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CSigAtomic#)

writeOffAddr# :: Addr# -> Int# -> CSigAtomic -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CSigAtomic -> State# s -> State# s

Prim CClock

Defined in Data.Primitive.Types

Methods

sizeOf# :: CClock -> Int#

alignment# :: CClock -> Int#

indexByteArray# :: ByteArray# -> Int# -> CClock

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CClock#)

writeByteArray# :: MutableByteArray# s -> Int# -> CClock -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CClock -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CClock

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CClock#)

writeOffAddr# :: Addr# -> Int# -> CClock -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CClock -> State# s -> State# s

Prim CTime

Defined in Data.Primitive.Types

Methods

sizeOf# :: CTime -> Int#

alignment# :: CTime -> Int#

indexByteArray# :: ByteArray# -> Int# -> CTime

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CTime#)

writeByteArray# :: MutableByteArray# s -> Int# -> CTime -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CTime -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CTime

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CTime#)

writeOffAddr# :: Addr# -> Int# -> CTime -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CTime -> State# s -> State# s

Prim CUSeconds

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUSeconds -> Int#

alignment# :: CUSeconds -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUSeconds

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUSeconds#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUSeconds -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUSeconds -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUSeconds

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUSeconds#)

writeOffAddr# :: Addr# -> Int# -> CUSeconds -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUSeconds -> State# s -> State# s

Prim CSUSeconds

Defined in Data.Primitive.Types

Methods

sizeOf# :: CSUSeconds -> Int#

alignment# :: CSUSeconds -> Int#

indexByteArray# :: ByteArray# -> Int# -> CSUSeconds

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CSUSeconds#)

writeByteArray# :: MutableByteArray# s -> Int# -> CSUSeconds -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CSUSeconds -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CSUSeconds

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CSUSeconds#)

writeOffAddr# :: Addr# -> Int# -> CSUSeconds -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CSUSeconds -> State# s -> State# s

Prim CIntPtr

Defined in Data.Primitive.Types

Methods

sizeOf# :: CIntPtr -> Int#

alignment# :: CIntPtr -> Int#

indexByteArray# :: ByteArray# -> Int# -> CIntPtr

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CIntPtr#)

writeByteArray# :: MutableByteArray# s -> Int# -> CIntPtr -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CIntPtr -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CIntPtr

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CIntPtr#)

writeOffAddr# :: Addr# -> Int# -> CIntPtr -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CIntPtr -> State# s -> State# s

Prim CUIntPtr

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUIntPtr -> Int#

alignment# :: CUIntPtr -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUIntPtr

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUIntPtr#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUIntPtr -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUIntPtr -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUIntPtr

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUIntPtr#)

writeOffAddr# :: Addr# -> Int# -> CUIntPtr -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUIntPtr -> State# s -> State# s

Prim CIntMax

Defined in Data.Primitive.Types

Methods

sizeOf# :: CIntMax -> Int#

alignment# :: CIntMax -> Int#

indexByteArray# :: ByteArray# -> Int# -> CIntMax

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CIntMax#)

writeByteArray# :: MutableByteArray# s -> Int# -> CIntMax -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CIntMax -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CIntMax

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CIntMax#)

writeOffAddr# :: Addr# -> Int# -> CIntMax -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CIntMax -> State# s -> State# s

Prim CUIntMax

Defined in Data.Primitive.Types

Methods

sizeOf# :: CUIntMax -> Int#

alignment# :: CUIntMax -> Int#

indexByteArray# :: ByteArray# -> Int# -> CUIntMax

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, CUIntMax#)

writeByteArray# :: MutableByteArray# s -> Int# -> CUIntMax -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> CUIntMax -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> CUIntMax

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, CUIntMax#)

writeOffAddr# :: Addr# -> Int# -> CUIntMax -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> CUIntMax -> State# s -> State# s

Prim (StablePtr a)

Defined in Data.Primitive.Types

Methods

sizeOf# :: StablePtr a -> Int#

alignment# :: StablePtr a -> Int#

indexByteArray# :: ByteArray# -> Int# -> StablePtr a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, StablePtr a#)

writeByteArray# :: MutableByteArray# s -> Int# -> StablePtr a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> StablePtr a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> StablePtr a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, StablePtr a#)

writeOffAddr# :: Addr# -> Int# -> StablePtr a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> StablePtr a -> State# s -> State# s

Prim (Ptr a)

Defined in Data.Primitive.Types

Methods

sizeOf# :: Ptr a -> Int#

alignment# :: Ptr a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Ptr a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Ptr a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Ptr a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Ptr a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Ptr a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Ptr a#)

writeOffAddr# :: Addr# -> Int# -> Ptr a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Ptr a -> State# s -> State# s

Prim (FunPtr a)

Defined in Data.Primitive.Types

Methods

sizeOf# :: FunPtr a -> Int#

alignment# :: FunPtr a -> Int#

indexByteArray# :: ByteArray# -> Int# -> FunPtr a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, FunPtr a#)

writeByteArray# :: MutableByteArray# s -> Int# -> FunPtr a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> FunPtr a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> FunPtr a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, FunPtr a#)

writeOffAddr# :: Addr# -> Int# -> FunPtr a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> FunPtr a -> State# s -> State# s

Prim a => Prim (Min a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Min a -> Int#

alignment# :: Min a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Min a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Min a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Min a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Min a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Min a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Min a#)

writeOffAddr# :: Addr# -> Int# -> Min a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Min a -> State# s -> State# s

Prim a => Prim (Max a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Max a -> Int#

alignment# :: Max a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Max a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Max a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Max a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Max a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Max a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Max a#)

writeOffAddr# :: Addr# -> Int# -> Max a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Max a -> State# s -> State# s

Prim a => Prim (First a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: First a -> Int#

alignment# :: First a -> Int#

indexByteArray# :: ByteArray# -> Int# -> First a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, First a#)

writeByteArray# :: MutableByteArray# s -> Int# -> First a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> First a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> First a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, First a#)

writeOffAddr# :: Addr# -> Int# -> First a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> First a -> State# s -> State# s

Prim a => Prim (Last a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Last a -> Int#

alignment# :: Last a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Last a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Last a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Last a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Last a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Last a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Last a#)

writeOffAddr# :: Addr# -> Int# -> Last a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Last a -> State# s -> State# s

Prim a => Prim (Identity a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Identity a -> Int#

alignment# :: Identity a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Identity a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Identity a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Identity a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Identity a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Identity a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Identity a#)

writeOffAddr# :: Addr# -> Int# -> Identity a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Identity a -> State# s -> State# s

Prim a => Prim (Dual a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Dual a -> Int#

alignment# :: Dual a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Dual a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Dual a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Dual a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Dual a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Dual a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Dual a#)

writeOffAddr# :: Addr# -> Int# -> Dual a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Dual a -> State# s -> State# s

Prim a => Prim (Sum a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Sum a -> Int#

alignment# :: Sum a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Sum a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Sum a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Sum a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Sum a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Sum a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Sum a#)

writeOffAddr# :: Addr# -> Int# -> Sum a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Sum a -> State# s -> State# s

Prim a => Prim (Product a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Product a -> Int#

alignment# :: Product a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Product a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Product a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Product a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Product a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Product a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Product a#)

writeOffAddr# :: Addr# -> Int# -> Product a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Product a -> State# s -> State# s

Prim a => Prim (Down a)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Down a -> Int#

alignment# :: Down a -> Int#

indexByteArray# :: ByteArray# -> Int# -> Down a

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Down a#)

writeByteArray# :: MutableByteArray# s -> Int# -> Down a -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Down a -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Down a

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Down a#)

writeOffAddr# :: Addr# -> Int# -> Down a -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Down a -> State# s -> State# s

Prim a => Prim (Const a b)

Since: primitive-0.6.5.0

Defined in Data.Primitive.Types

Methods

sizeOf# :: Const a b -> Int#

alignment# :: Const a b -> Int#

indexByteArray# :: ByteArray# -> Int# -> Const a b

readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (#State# s, Const a b#)

writeByteArray# :: MutableByteArray# s -> Int# -> Const a b -> State# s -> State# s

setByteArray# :: MutableByteArray# s -> Int# -> Int# -> Const a b -> State# s -> State# s

indexOffAddr# :: Addr# -> Int# -> Const a b

readOffAddr# :: Addr# -> Int# -> State# s -> (#State# s, Const a b#)

writeOffAddr# :: Addr# -> Int# -> Const a b -> State# s -> State# s

setOffAddr# :: Addr# -> Int# -> Int# -> Const a b -> State# s -> State# s

class Monad m => PrimMonad (m :: Type -> Type)

Class of monads which can perform primitive state-transformer actions

Minimal complete definition

primitive

Associated Types

type PrimState (m :: Type -> Type) :: Type

State token type

Instances

PrimMonad IO

Defined in Control.Monad.Primitive

Associated Types

type PrimState IO :: Type

Methods

primitive :: (State# (PrimState IO) -> (#State# (PrimState IO), a#)) -> IO a

PrimMonad (ST s)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ST s) :: Type

Methods

primitive :: (State# (PrimState (ST s)) -> (#State# (PrimState (ST s)), a#)) -> ST s a

PrimMonad m => PrimMonad (MaybeT m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (MaybeT m) :: Type

Methods

primitive :: (State# (PrimState (MaybeT m)) -> (#State# (PrimState (MaybeT m)), a#)) -> MaybeT m a

PrimMonad m => PrimMonad (ListT m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ListT m) :: Type

Methods

primitive :: (State# (PrimState (ListT m)) -> (#State# (PrimState (ListT m)), a#)) -> ListT m a

(Monoid w, PrimMonad m) => PrimMonad (WriterT w m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (WriterT w m) :: Type

Methods

primitive :: (State# (PrimState (WriterT w m)) -> (#State# (PrimState (WriterT w m)), a#)) -> WriterT w m a

(Monoid w, PrimMonad m) => PrimMonad (AccumT w m)

Since: primitive-0.6.3.0

Defined in Control.Monad.Primitive

Associated Types

type PrimState (AccumT w m) :: Type

Methods

primitive :: (State# (PrimState (AccumT w m)) -> (#State# (PrimState (AccumT w m)), a#)) -> AccumT w m a

(Monoid w, PrimMonad m) => PrimMonad (WriterT w m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (WriterT w m) :: Type

Methods

primitive :: (State# (PrimState (WriterT w m)) -> (#State# (PrimState (WriterT w m)), a#)) -> WriterT w m a

PrimMonad m => PrimMonad (StateT s m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (StateT s m) :: Type

Methods

primitive :: (State# (PrimState (StateT s m)) -> (#State# (PrimState (StateT s m)), a#)) -> StateT s m a

PrimMonad m => PrimMonad (StateT s m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (StateT s m) :: Type

Methods

primitive :: (State# (PrimState (StateT s m)) -> (#State# (PrimState (StateT s m)), a#)) -> StateT s m a

PrimMonad m => PrimMonad (SelectT r m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (SelectT r m) :: Type

Methods

primitive :: (State# (PrimState (SelectT r m)) -> (#State# (PrimState (SelectT r m)), a#)) -> SelectT r m a

PrimMonad m => PrimMonad (IdentityT m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (IdentityT m) :: Type

Methods

primitive :: (State# (PrimState (IdentityT m)) -> (#State# (PrimState (IdentityT m)), a#)) -> IdentityT m a

PrimMonad m => PrimMonad (ExceptT e m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ExceptT e m) :: Type

Methods

primitive :: (State# (PrimState (ExceptT e m)) -> (#State# (PrimState (ExceptT e m)), a#)) -> ExceptT e m a

(Error e, PrimMonad m) => PrimMonad (ErrorT e m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ErrorT e m) :: Type

Methods

primitive :: (State# (PrimState (ErrorT e m)) -> (#State# (PrimState (ErrorT e m)), a#)) -> ErrorT e m a

PrimMonad m => PrimMonad (ReaderT r m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ReaderT r m) :: Type

Methods

primitive :: (State# (PrimState (ReaderT r m)) -> (#State# (PrimState (ReaderT r m)), a#)) -> ReaderT r m a

PrimMonad m => PrimMonad (ContT r m)

Since: primitive-0.6.3.0

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ContT r m) :: Type

Methods

primitive :: (State# (PrimState (ContT r m)) -> (#State# (PrimState (ContT r m)), a#)) -> ContT r m a

(Monoid w, PrimMonad m) => PrimMonad (RWST r w s m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (RWST r w s m) :: Type

Methods

primitive :: (State# (PrimState (RWST r w s m)) -> (#State# (PrimState (RWST r w s m)), a#)) -> RWST r w s m a

(Monoid w, PrimMonad m) => PrimMonad (RWST r w s m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (RWST r w s m) :: Type

Methods

primitive :: (State# (PrimState (RWST r w s m)) -> (#State# (PrimState (RWST r w s m)), a#)) -> RWST r w s m a

data RealWorld :: Type

RealWorld is deeply magical. It is primitive, but it is not unlifted (hence ptrArg). We never manipulate values of type RealWorld; it's only used in the type system, to parameterise State#.

sizeOf :: Prim a => a -> Int

Size of values of type a. The argument is not used.

This function has existed since 0.1, but was moved from Primitive to Types in version 0.6.3.0

alignment :: Prim a => a -> Int

Alignment of values of type a. The argument is not used.

This function has existed since 0.1, but was moved from Primitive to Types in version 0.6.3.0

data ST s a

The strict state-transformer monad. A computation of type ST s a transforms an internal state indexed by s, and returns a value of type a. The s parameter is either

• an uninstantiated type variable (inside invocations of runST), or
• RealWorld (inside invocations of stToIO).

It serves to keep the internal states of different invocations of runST separate from each other and from invocations of stToIO.

The >>= and >> operations are strict in the state (though not in values stored in the state). For example,

runST (writeSTRef _|_ v >>= f) = _|_

Instances

Monad (ST s)

Since: base-2.1

Defined in GHC.ST

Methods

(>>=) :: ST s a -> (a -> ST s b) -> ST s b

(>>) :: ST s a -> ST s b -> ST s b

return :: a -> ST s a

fail :: String -> ST s a

Functor (ST s)

Since: base-2.1

Defined in GHC.ST

Methods

fmap :: (a -> b) -> ST s a -> ST s b

(<$) :: a -> ST s b -> ST s a

MonadFail (ST s)

Since: base-4.11.0.0

Defined in GHC.ST

Methods

fail :: String -> ST s a

Applicative (ST s)

Since: base-4.4.0.0

Defined in GHC.ST

Methods

pure :: a -> ST s a

(<*>) :: ST s (a -> b) -> ST s a -> ST s b

liftA2 :: (a -> b -> c) -> ST s a -> ST s b -> ST s c

(*>) :: ST s a -> ST s b -> ST s b

(<*) :: ST s a -> ST s b -> ST s a

PrimMonad (ST s)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ST s) :: Type

Methods

primitive :: (State# (PrimState (ST s)) -> (#State# (PrimState (ST s)), a#)) -> ST s a

PrimBase (ST s)

Defined in Control.Monad.Primitive

Methods

internal :: ST s a -> State# (PrimState (ST s)) -> (#State# (PrimState (ST s)), a#)

Show (ST s a)

Since: base-2.1

Defined in GHC.ST

Methods

showsPrec :: Int -> ST s a -> ShowS

show :: ST s a -> String

showList :: [ST s a] -> ShowS

Semigroup a => Semigroup (ST s a)

Since: base-4.11.0.0

Defined in GHC.ST

Methods

(<>) :: ST s a -> ST s a -> ST s a

sconcat :: NonEmpty (ST s a) -> ST s a

stimes :: Integral b => b -> ST s a -> ST s a

Monoid a => Monoid (ST s a)

Since: base-4.11.0.0

Defined in GHC.ST

Methods

mempty :: ST s a

mappend :: ST s a -> ST s a -> ST s a

mconcat :: [ST s a] -> ST s a

type PrimState (ST s)

Defined in Control.Monad.Primitive

type PrimState (ST s) = s

runST :: (forall s. ST s a) -> a

Return the value computed by a state transformer computation. The forall ensures that the internal state used by the ST computation is inaccessible to the rest of the program.

class Storable a where

The member functions of this class facilitate writing values of primitive types to raw memory (which may have been allocated with the above mentioned routines) and reading values from blocks of raw memory. The class, furthermore, includes support for computing the storage requirements and alignment restrictions of storable types.

Memory addresses are represented as values of type Ptr a, for some a which is an instance of class Storable. The type argument to Ptr helps provide some valuable type safety in FFI code (you can't mix pointers of different types without an explicit cast), while helping the Haskell type system figure out which marshalling method is needed for a given pointer.

All marshalling between Haskell and a foreign language ultimately boils down to translating Haskell data structures into the binary representation of a corresponding data structure of the foreign language and vice versa. To code this marshalling in Haskell, it is necessary to manipulate primitive data types stored in unstructured memory blocks. The class Storable facilitates this manipulation on all types for which it is instantiated, which are the standard basic types of Haskell, the fixed size Int types (Int8, Int16, Int32, Int64), the fixed size Word types (Word8, Word16, Word32, Word64), StablePtr, all types from Foreign.C.Types, as well as Ptr.

Minimal complete definition

sizeOf, alignment, (peek | peekElemOff | peekByteOff), (poke | pokeElemOff | pokeByteOff)

Methods

peek :: Ptr a -> IO a

Read a value from the given memory location.

Note that the peek and poke functions might require properly aligned addresses to function correctly. This is architecture dependent; thus, portable code should ensure that when peeking or poking values of some type a, the alignment constraint for a, as given by the function alignment is fulfilled.

poke :: Ptr a -> a -> IO ()

Write the given value to the given memory location. Alignment restrictions might apply; see peek.

Instances

Storable Bool

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Bool -> Int

alignment :: Bool -> Int

peekElemOff :: Ptr Bool -> Int -> IO Bool

pokeElemOff :: Ptr Bool -> Int -> Bool -> IO ()

peekByteOff :: Ptr b -> Int -> IO Bool

pokeByteOff :: Ptr b -> Int -> Bool -> IO ()

peek :: Ptr Bool -> IO Bool

poke :: Ptr Bool -> Bool -> IO ()

Storable Char

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Char -> Int

alignment :: Char -> Int

peekElemOff :: Ptr Char -> Int -> IO Char

pokeElemOff :: Ptr Char -> Int -> Char -> IO ()

peekByteOff :: Ptr b -> Int -> IO Char

pokeByteOff :: Ptr b -> Int -> Char -> IO ()

peek :: Ptr Char -> IO Char

poke :: Ptr Char -> Char -> IO ()

Storable Double

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Double -> Int

alignment :: Double -> Int

peekElemOff :: Ptr Double -> Int -> IO Double

pokeElemOff :: Ptr Double -> Int -> Double -> IO ()

peekByteOff :: Ptr b -> Int -> IO Double

pokeByteOff :: Ptr b -> Int -> Double -> IO ()

peek :: Ptr Double -> IO Double

poke :: Ptr Double -> Double -> IO ()

Storable Float

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Float -> Int

alignment :: Float -> Int

peekElemOff :: Ptr Float -> Int -> IO Float

pokeElemOff :: Ptr Float -> Int -> Float -> IO ()

peekByteOff :: Ptr b -> Int -> IO Float

pokeByteOff :: Ptr b -> Int -> Float -> IO ()

peek :: Ptr Float -> IO Float

poke :: Ptr Float -> Float -> IO ()

Storable Int

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Int -> Int

alignment :: Int -> Int

peekElemOff :: Ptr Int -> Int -> IO Int

pokeElemOff :: Ptr Int -> Int -> Int -> IO ()

peekByteOff :: Ptr b -> Int -> IO Int

pokeByteOff :: Ptr b -> Int -> Int -> IO ()

peek :: Ptr Int -> IO Int

poke :: Ptr Int -> Int -> IO ()

Storable Int8

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Int8 -> Int

alignment :: Int8 -> Int

peekElemOff :: Ptr Int8 -> Int -> IO Int8

pokeElemOff :: Ptr Int8 -> Int -> Int8 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Int8

pokeByteOff :: Ptr b -> Int -> Int8 -> IO ()

peek :: Ptr Int8 -> IO Int8

poke :: Ptr Int8 -> Int8 -> IO ()

Storable Int16

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Int16 -> Int

alignment :: Int16 -> Int

peekElemOff :: Ptr Int16 -> Int -> IO Int16

pokeElemOff :: Ptr Int16 -> Int -> Int16 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Int16

pokeByteOff :: Ptr b -> Int -> Int16 -> IO ()

peek :: Ptr Int16 -> IO Int16

poke :: Ptr Int16 -> Int16 -> IO ()

Storable Int32

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Int32 -> Int

alignment :: Int32 -> Int

peekElemOff :: Ptr Int32 -> Int -> IO Int32

pokeElemOff :: Ptr Int32 -> Int -> Int32 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Int32

pokeByteOff :: Ptr b -> Int -> Int32 -> IO ()

peek :: Ptr Int32 -> IO Int32

poke :: Ptr Int32 -> Int32 -> IO ()

Storable Int64

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Int64 -> Int

alignment :: Int64 -> Int

peekElemOff :: Ptr Int64 -> Int -> IO Int64

pokeElemOff :: Ptr Int64 -> Int -> Int64 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Int64

pokeByteOff :: Ptr b -> Int -> Int64 -> IO ()

peek :: Ptr Int64 -> IO Int64

poke :: Ptr Int64 -> Int64 -> IO ()

Storable Word

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Word -> Int

alignment :: Word -> Int

peekElemOff :: Ptr Word -> Int -> IO Word

pokeElemOff :: Ptr Word -> Int -> Word -> IO ()

peekByteOff :: Ptr b -> Int -> IO Word

pokeByteOff :: Ptr b -> Int -> Word -> IO ()

peek :: Ptr Word -> IO Word

poke :: Ptr Word -> Word -> IO ()

Storable Word8

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Word8 -> Int

alignment :: Word8 -> Int

peekElemOff :: Ptr Word8 -> Int -> IO Word8

pokeElemOff :: Ptr Word8 -> Int -> Word8 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Word8

pokeByteOff :: Ptr b -> Int -> Word8 -> IO ()

peek :: Ptr Word8 -> IO Word8

poke :: Ptr Word8 -> Word8 -> IO ()

Storable Word16

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Word16 -> Int

alignment :: Word16 -> Int

peekElemOff :: Ptr Word16 -> Int -> IO Word16

pokeElemOff :: Ptr Word16 -> Int -> Word16 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Word16

pokeByteOff :: Ptr b -> Int -> Word16 -> IO ()

peek :: Ptr Word16 -> IO Word16

poke :: Ptr Word16 -> Word16 -> IO ()

Storable Word32

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Word32 -> Int

alignment :: Word32 -> Int

peekElemOff :: Ptr Word32 -> Int -> IO Word32

pokeElemOff :: Ptr Word32 -> Int -> Word32 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Word32

pokeByteOff :: Ptr b -> Int -> Word32 -> IO ()

peek :: Ptr Word32 -> IO Word32

poke :: Ptr Word32 -> Word32 -> IO ()

Storable Word64

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Word64 -> Int

alignment :: Word64 -> Int

peekElemOff :: Ptr Word64 -> Int -> IO Word64

pokeElemOff :: Ptr Word64 -> Int -> Word64 -> IO ()

peekByteOff :: Ptr b -> Int -> IO Word64

pokeByteOff :: Ptr b -> Int -> Word64 -> IO ()

peek :: Ptr Word64 -> IO Word64

poke :: Ptr Word64 -> Word64 -> IO ()

Storable ()

Since: base-4.9.0.0

Defined in Foreign.Storable

Methods

sizeOf :: () -> Int

alignment :: () -> Int

peekElemOff :: Ptr () -> Int -> IO ()

pokeElemOff :: Ptr () -> Int -> () -> IO ()

peekByteOff :: Ptr b -> Int -> IO ()

pokeByteOff :: Ptr b -> Int -> () -> IO ()

peek :: Ptr () -> IO ()

poke :: Ptr () -> () -> IO ()

Storable CDev

Defined in System.Posix.Types

Methods

sizeOf :: CDev -> Int

alignment :: CDev -> Int

peekElemOff :: Ptr CDev -> Int -> IO CDev

pokeElemOff :: Ptr CDev -> Int -> CDev -> IO ()

peekByteOff :: Ptr b -> Int -> IO CDev

pokeByteOff :: Ptr b -> Int -> CDev -> IO ()

peek :: Ptr CDev -> IO CDev

poke :: Ptr CDev -> CDev -> IO ()

Storable CIno

Defined in System.Posix.Types

Methods

sizeOf :: CIno -> Int

alignment :: CIno -> Int

peekElemOff :: Ptr CIno -> Int -> IO CIno

pokeElemOff :: Ptr CIno -> Int -> CIno -> IO ()

peekByteOff :: Ptr b -> Int -> IO CIno

pokeByteOff :: Ptr b -> Int -> CIno -> IO ()

peek :: Ptr CIno -> IO CIno

poke :: Ptr CIno -> CIno -> IO ()

Storable CMode

Defined in System.Posix.Types

Methods

sizeOf :: CMode -> Int

alignment :: CMode -> Int

peekElemOff :: Ptr CMode -> Int -> IO CMode

pokeElemOff :: Ptr CMode -> Int -> CMode -> IO ()

peekByteOff :: Ptr b -> Int -> IO CMode

pokeByteOff :: Ptr b -> Int -> CMode -> IO ()

peek :: Ptr CMode -> IO CMode

poke :: Ptr CMode -> CMode -> IO ()

Storable COff

Defined in System.Posix.Types

Methods

sizeOf :: COff -> Int

alignment :: COff -> Int

peekElemOff :: Ptr COff -> Int -> IO COff

pokeElemOff :: Ptr COff -> Int -> COff -> IO ()

peekByteOff :: Ptr b -> Int -> IO COff

pokeByteOff :: Ptr b -> Int -> COff -> IO ()

peek :: Ptr COff -> IO COff

poke :: Ptr COff -> COff -> IO ()

Storable CPid

Defined in System.Posix.Types

Methods

sizeOf :: CPid -> Int

alignment :: CPid -> Int

peekElemOff :: Ptr CPid -> Int -> IO CPid

pokeElemOff :: Ptr CPid -> Int -> CPid -> IO ()

peekByteOff :: Ptr b -> Int -> IO CPid

pokeByteOff :: Ptr b -> Int -> CPid -> IO ()

peek :: Ptr CPid -> IO CPid

poke :: Ptr CPid -> CPid -> IO ()

Storable CSsize

Defined in System.Posix.Types

Methods

sizeOf :: CSsize -> Int

alignment :: CSsize -> Int

peekElemOff :: Ptr CSsize -> Int -> IO CSsize

pokeElemOff :: Ptr CSsize -> Int -> CSsize -> IO ()

peekByteOff :: Ptr b -> Int -> IO CSsize

pokeByteOff :: Ptr b -> Int -> CSsize -> IO ()

peek :: Ptr CSsize -> IO CSsize

poke :: Ptr CSsize -> CSsize -> IO ()

Storable CGid

Defined in System.Posix.Types

Methods

sizeOf :: CGid -> Int

alignment :: CGid -> Int

peekElemOff :: Ptr CGid -> Int -> IO CGid

pokeElemOff :: Ptr CGid -> Int -> CGid -> IO ()

peekByteOff :: Ptr b -> Int -> IO CGid

pokeByteOff :: Ptr b -> Int -> CGid -> IO ()

peek :: Ptr CGid -> IO CGid

poke :: Ptr CGid -> CGid -> IO ()

Storable CNlink

Defined in System.Posix.Types

Methods

sizeOf :: CNlink -> Int

alignment :: CNlink -> Int

peekElemOff :: Ptr CNlink -> Int -> IO CNlink

pokeElemOff :: Ptr CNlink -> Int -> CNlink -> IO ()

peekByteOff :: Ptr b -> Int -> IO CNlink

pokeByteOff :: Ptr b -> Int -> CNlink -> IO ()

peek :: Ptr CNlink -> IO CNlink

poke :: Ptr CNlink -> CNlink -> IO ()

Storable CUid

Defined in System.Posix.Types

Methods

sizeOf :: CUid -> Int

alignment :: CUid -> Int

peekElemOff :: Ptr CUid -> Int -> IO CUid

pokeElemOff :: Ptr CUid -> Int -> CUid -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUid

pokeByteOff :: Ptr b -> Int -> CUid -> IO ()

peek :: Ptr CUid -> IO CUid

poke :: Ptr CUid -> CUid -> IO ()

Storable CCc

Defined in System.Posix.Types

Methods

sizeOf :: CCc -> Int

alignment :: CCc -> Int

peekElemOff :: Ptr CCc -> Int -> IO CCc

pokeElemOff :: Ptr CCc -> Int -> CCc -> IO ()

peekByteOff :: Ptr b -> Int -> IO CCc

pokeByteOff :: Ptr b -> Int -> CCc -> IO ()

peek :: Ptr CCc -> IO CCc

poke :: Ptr CCc -> CCc -> IO ()

Storable CSpeed

Defined in System.Posix.Types

Methods

sizeOf :: CSpeed -> Int

alignment :: CSpeed -> Int

peekElemOff :: Ptr CSpeed -> Int -> IO CSpeed

pokeElemOff :: Ptr CSpeed -> Int -> CSpeed -> IO ()

peekByteOff :: Ptr b -> Int -> IO CSpeed

pokeByteOff :: Ptr b -> Int -> CSpeed -> IO ()

peek :: Ptr CSpeed -> IO CSpeed

poke :: Ptr CSpeed -> CSpeed -> IO ()

Storable CTcflag

Defined in System.Posix.Types

Methods

sizeOf :: CTcflag -> Int

alignment :: CTcflag -> Int

peekElemOff :: Ptr CTcflag -> Int -> IO CTcflag

pokeElemOff :: Ptr CTcflag -> Int -> CTcflag -> IO ()

peekByteOff :: Ptr b -> Int -> IO CTcflag

pokeByteOff :: Ptr b -> Int -> CTcflag -> IO ()

peek :: Ptr CTcflag -> IO CTcflag

poke :: Ptr CTcflag -> CTcflag -> IO ()

Storable CRLim

Defined in System.Posix.Types

Methods

sizeOf :: CRLim -> Int

alignment :: CRLim -> Int

peekElemOff :: Ptr CRLim -> Int -> IO CRLim

pokeElemOff :: Ptr CRLim -> Int -> CRLim -> IO ()

peekByteOff :: Ptr b -> Int -> IO CRLim

pokeByteOff :: Ptr b -> Int -> CRLim -> IO ()

peek :: Ptr CRLim -> IO CRLim

poke :: Ptr CRLim -> CRLim -> IO ()

Storable CBlkSize

Defined in System.Posix.Types

Methods

sizeOf :: CBlkSize -> Int

alignment :: CBlkSize -> Int

peekElemOff :: Ptr CBlkSize -> Int -> IO CBlkSize

pokeElemOff :: Ptr CBlkSize -> Int -> CBlkSize -> IO ()

peekByteOff :: Ptr b -> Int -> IO CBlkSize

pokeByteOff :: Ptr b -> Int -> CBlkSize -> IO ()

peek :: Ptr CBlkSize -> IO CBlkSize

poke :: Ptr CBlkSize -> CBlkSize -> IO ()

Storable CBlkCnt

Defined in System.Posix.Types

Methods

sizeOf :: CBlkCnt -> Int

alignment :: CBlkCnt -> Int

peekElemOff :: Ptr CBlkCnt -> Int -> IO CBlkCnt

pokeElemOff :: Ptr CBlkCnt -> Int -> CBlkCnt -> IO ()

peekByteOff :: Ptr b -> Int -> IO CBlkCnt

pokeByteOff :: Ptr b -> Int -> CBlkCnt -> IO ()

peek :: Ptr CBlkCnt -> IO CBlkCnt

poke :: Ptr CBlkCnt -> CBlkCnt -> IO ()

Storable CClockId

Defined in System.Posix.Types

Methods

sizeOf :: CClockId -> Int

alignment :: CClockId -> Int

peekElemOff :: Ptr CClockId -> Int -> IO CClockId

pokeElemOff :: Ptr CClockId -> Int -> CClockId -> IO ()

peekByteOff :: Ptr b -> Int -> IO CClockId

pokeByteOff :: Ptr b -> Int -> CClockId -> IO ()

peek :: Ptr CClockId -> IO CClockId

poke :: Ptr CClockId -> CClockId -> IO ()

Storable CFsBlkCnt

Defined in System.Posix.Types

Methods

sizeOf :: CFsBlkCnt -> Int

alignment :: CFsBlkCnt -> Int

peekElemOff :: Ptr CFsBlkCnt -> Int -> IO CFsBlkCnt

pokeElemOff :: Ptr CFsBlkCnt -> Int -> CFsBlkCnt -> IO ()

peekByteOff :: Ptr b -> Int -> IO CFsBlkCnt

pokeByteOff :: Ptr b -> Int -> CFsBlkCnt -> IO ()

peek :: Ptr CFsBlkCnt -> IO CFsBlkCnt

poke :: Ptr CFsBlkCnt -> CFsBlkCnt -> IO ()

Storable CFsFilCnt

Defined in System.Posix.Types

Methods

sizeOf :: CFsFilCnt -> Int

alignment :: CFsFilCnt -> Int

peekElemOff :: Ptr CFsFilCnt -> Int -> IO CFsFilCnt

pokeElemOff :: Ptr CFsFilCnt -> Int -> CFsFilCnt -> IO ()

peekByteOff :: Ptr b -> Int -> IO CFsFilCnt

pokeByteOff :: Ptr b -> Int -> CFsFilCnt -> IO ()

peek :: Ptr CFsFilCnt -> IO CFsFilCnt

poke :: Ptr CFsFilCnt -> CFsFilCnt -> IO ()

Storable CId

Defined in System.Posix.Types

Methods

sizeOf :: CId -> Int

alignment :: CId -> Int

peekElemOff :: Ptr CId -> Int -> IO CId

pokeElemOff :: Ptr CId -> Int -> CId -> IO ()

peekByteOff :: Ptr b -> Int -> IO CId

pokeByteOff :: Ptr b -> Int -> CId -> IO ()

peek :: Ptr CId -> IO CId

poke :: Ptr CId -> CId -> IO ()

Storable CKey

Defined in System.Posix.Types

Methods

sizeOf :: CKey -> Int

alignment :: CKey -> Int

peekElemOff :: Ptr CKey -> Int -> IO CKey

pokeElemOff :: Ptr CKey -> Int -> CKey -> IO ()

peekByteOff :: Ptr b -> Int -> IO CKey

pokeByteOff :: Ptr b -> Int -> CKey -> IO ()

peek :: Ptr CKey -> IO CKey

poke :: Ptr CKey -> CKey -> IO ()

Storable CTimer

Defined in System.Posix.Types

Methods

sizeOf :: CTimer -> Int

alignment :: CTimer -> Int

peekElemOff :: Ptr CTimer -> Int -> IO CTimer

pokeElemOff :: Ptr CTimer -> Int -> CTimer -> IO ()

peekByteOff :: Ptr b -> Int -> IO CTimer

pokeByteOff :: Ptr b -> Int -> CTimer -> IO ()

peek :: Ptr CTimer -> IO CTimer

poke :: Ptr CTimer -> CTimer -> IO ()

Storable Fd

Defined in System.Posix.Types

Methods

sizeOf :: Fd -> Int

alignment :: Fd -> Int

peekElemOff :: Ptr Fd -> Int -> IO Fd

pokeElemOff :: Ptr Fd -> Int -> Fd -> IO ()

peekByteOff :: Ptr b -> Int -> IO Fd

pokeByteOff :: Ptr b -> Int -> Fd -> IO ()

peek :: Ptr Fd -> IO Fd

poke :: Ptr Fd -> Fd -> IO ()

Storable CChar

Defined in Foreign.C.Types

Methods

sizeOf :: CChar -> Int

alignment :: CChar -> Int

peekElemOff :: Ptr CChar -> Int -> IO CChar

pokeElemOff :: Ptr CChar -> Int -> CChar -> IO ()

peekByteOff :: Ptr b -> Int -> IO CChar

pokeByteOff :: Ptr b -> Int -> CChar -> IO ()

peek :: Ptr CChar -> IO CChar

poke :: Ptr CChar -> CChar -> IO ()

Storable CSChar

Defined in Foreign.C.Types

Methods

sizeOf :: CSChar -> Int

alignment :: CSChar -> Int

peekElemOff :: Ptr CSChar -> Int -> IO CSChar

pokeElemOff :: Ptr CSChar -> Int -> CSChar -> IO ()

peekByteOff :: Ptr b -> Int -> IO CSChar

pokeByteOff :: Ptr b -> Int -> CSChar -> IO ()

peek :: Ptr CSChar -> IO CSChar

poke :: Ptr CSChar -> CSChar -> IO ()

Storable CUChar

Defined in Foreign.C.Types

Methods

sizeOf :: CUChar -> Int

alignment :: CUChar -> Int

peekElemOff :: Ptr CUChar -> Int -> IO CUChar

pokeElemOff :: Ptr CUChar -> Int -> CUChar -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUChar

pokeByteOff :: Ptr b -> Int -> CUChar -> IO ()

peek :: Ptr CUChar -> IO CUChar

poke :: Ptr CUChar -> CUChar -> IO ()

Storable CShort

Defined in Foreign.C.Types

Methods

sizeOf :: CShort -> Int

alignment :: CShort -> Int

peekElemOff :: Ptr CShort -> Int -> IO CShort

pokeElemOff :: Ptr CShort -> Int -> CShort -> IO ()

peekByteOff :: Ptr b -> Int -> IO CShort

pokeByteOff :: Ptr b -> Int -> CShort -> IO ()

peek :: Ptr CShort -> IO CShort

poke :: Ptr CShort -> CShort -> IO ()

Storable CUShort

Defined in Foreign.C.Types

Methods

sizeOf :: CUShort -> Int

alignment :: CUShort -> Int

peekElemOff :: Ptr CUShort -> Int -> IO CUShort

pokeElemOff :: Ptr CUShort -> Int -> CUShort -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUShort

pokeByteOff :: Ptr b -> Int -> CUShort -> IO ()

peek :: Ptr CUShort -> IO CUShort

poke :: Ptr CUShort -> CUShort -> IO ()

Storable CInt

Defined in Foreign.C.Types

Methods

sizeOf :: CInt -> Int

alignment :: CInt -> Int

peekElemOff :: Ptr CInt -> Int -> IO CInt

pokeElemOff :: Ptr CInt -> Int -> CInt -> IO ()

peekByteOff :: Ptr b -> Int -> IO CInt

pokeByteOff :: Ptr b -> Int -> CInt -> IO ()

peek :: Ptr CInt -> IO CInt

poke :: Ptr CInt -> CInt -> IO ()

Storable CUInt

Defined in Foreign.C.Types

Methods

sizeOf :: CUInt -> Int

alignment :: CUInt -> Int

peekElemOff :: Ptr CUInt -> Int -> IO CUInt

pokeElemOff :: Ptr CUInt -> Int -> CUInt -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUInt

pokeByteOff :: Ptr b -> Int -> CUInt -> IO ()

peek :: Ptr CUInt -> IO CUInt

poke :: Ptr CUInt -> CUInt -> IO ()

Storable CLong

Defined in Foreign.C.Types

Methods

sizeOf :: CLong -> Int

alignment :: CLong -> Int

peekElemOff :: Ptr CLong -> Int -> IO CLong

pokeElemOff :: Ptr CLong -> Int -> CLong -> IO ()

peekByteOff :: Ptr b -> Int -> IO CLong

pokeByteOff :: Ptr b -> Int -> CLong -> IO ()

peek :: Ptr CLong -> IO CLong

poke :: Ptr CLong -> CLong -> IO ()

Storable CULong

Defined in Foreign.C.Types

Methods

sizeOf :: CULong -> Int

alignment :: CULong -> Int

peekElemOff :: Ptr CULong -> Int -> IO CULong

pokeElemOff :: Ptr CULong -> Int -> CULong -> IO ()

peekByteOff :: Ptr b -> Int -> IO CULong

pokeByteOff :: Ptr b -> Int -> CULong -> IO ()

peek :: Ptr CULong -> IO CULong

poke :: Ptr CULong -> CULong -> IO ()

Storable CLLong

Defined in Foreign.C.Types

Methods

sizeOf :: CLLong -> Int

alignment :: CLLong -> Int

peekElemOff :: Ptr CLLong -> Int -> IO CLLong

pokeElemOff :: Ptr CLLong -> Int -> CLLong -> IO ()

peekByteOff :: Ptr b -> Int -> IO CLLong

pokeByteOff :: Ptr b -> Int -> CLLong -> IO ()

peek :: Ptr CLLong -> IO CLLong

poke :: Ptr CLLong -> CLLong -> IO ()

Storable CULLong

Defined in Foreign.C.Types

Methods

sizeOf :: CULLong -> Int

alignment :: CULLong -> Int

peekElemOff :: Ptr CULLong -> Int -> IO CULLong

pokeElemOff :: Ptr CULLong -> Int -> CULLong -> IO ()

peekByteOff :: Ptr b -> Int -> IO CULLong

pokeByteOff :: Ptr b -> Int -> CULLong -> IO ()

peek :: Ptr CULLong -> IO CULLong

poke :: Ptr CULLong -> CULLong -> IO ()

Storable CBool

Defined in Foreign.C.Types

Methods

sizeOf :: CBool -> Int

alignment :: CBool -> Int

peekElemOff :: Ptr CBool -> Int -> IO CBool

pokeElemOff :: Ptr CBool -> Int -> CBool -> IO ()

peekByteOff :: Ptr b -> Int -> IO CBool

pokeByteOff :: Ptr b -> Int -> CBool -> IO ()

peek :: Ptr CBool -> IO CBool

poke :: Ptr CBool -> CBool -> IO ()

Storable CFloat

Defined in Foreign.C.Types

Methods

sizeOf :: CFloat -> Int

alignment :: CFloat -> Int

peekElemOff :: Ptr CFloat -> Int -> IO CFloat

pokeElemOff :: Ptr CFloat -> Int -> CFloat -> IO ()

peekByteOff :: Ptr b -> Int -> IO CFloat

pokeByteOff :: Ptr b -> Int -> CFloat -> IO ()

peek :: Ptr CFloat -> IO CFloat

poke :: Ptr CFloat -> CFloat -> IO ()

Storable CDouble

Defined in Foreign.C.Types

Methods

sizeOf :: CDouble -> Int

alignment :: CDouble -> Int

peekElemOff :: Ptr CDouble -> Int -> IO CDouble

pokeElemOff :: Ptr CDouble -> Int -> CDouble -> IO ()

peekByteOff :: Ptr b -> Int -> IO CDouble

pokeByteOff :: Ptr b -> Int -> CDouble -> IO ()

peek :: Ptr CDouble -> IO CDouble

poke :: Ptr CDouble -> CDouble -> IO ()

Storable CPtrdiff

Defined in Foreign.C.Types

Methods

sizeOf :: CPtrdiff -> Int

alignment :: CPtrdiff -> Int

peekElemOff :: Ptr CPtrdiff -> Int -> IO CPtrdiff

pokeElemOff :: Ptr CPtrdiff -> Int -> CPtrdiff -> IO ()

peekByteOff :: Ptr b -> Int -> IO CPtrdiff

pokeByteOff :: Ptr b -> Int -> CPtrdiff -> IO ()

peek :: Ptr CPtrdiff -> IO CPtrdiff

poke :: Ptr CPtrdiff -> CPtrdiff -> IO ()

Storable CSize

Defined in Foreign.C.Types

Methods

sizeOf :: CSize -> Int

alignment :: CSize -> Int

peekElemOff :: Ptr CSize -> Int -> IO CSize

pokeElemOff :: Ptr CSize -> Int -> CSize -> IO ()

peekByteOff :: Ptr b -> Int -> IO CSize

pokeByteOff :: Ptr b -> Int -> CSize -> IO ()

peek :: Ptr CSize -> IO CSize

poke :: Ptr CSize -> CSize -> IO ()

Storable CWchar

Defined in Foreign.C.Types

Methods

sizeOf :: CWchar -> Int

alignment :: CWchar -> Int

peekElemOff :: Ptr CWchar -> Int -> IO CWchar

pokeElemOff :: Ptr CWchar -> Int -> CWchar -> IO ()

peekByteOff :: Ptr b -> Int -> IO CWchar

pokeByteOff :: Ptr b -> Int -> CWchar -> IO ()

peek :: Ptr CWchar -> IO CWchar

poke :: Ptr CWchar -> CWchar -> IO ()

Storable CSigAtomic

Defined in Foreign.C.Types

Methods

sizeOf :: CSigAtomic -> Int

alignment :: CSigAtomic -> Int

peekElemOff :: Ptr CSigAtomic -> Int -> IO CSigAtomic

pokeElemOff :: Ptr CSigAtomic -> Int -> CSigAtomic -> IO ()

peekByteOff :: Ptr b -> Int -> IO CSigAtomic

pokeByteOff :: Ptr b -> Int -> CSigAtomic -> IO ()

peek :: Ptr CSigAtomic -> IO CSigAtomic

poke :: Ptr CSigAtomic -> CSigAtomic -> IO ()

Storable CClock

Defined in Foreign.C.Types

Methods

sizeOf :: CClock -> Int

alignment :: CClock -> Int

peekElemOff :: Ptr CClock -> Int -> IO CClock

pokeElemOff :: Ptr CClock -> Int -> CClock -> IO ()

peekByteOff :: Ptr b -> Int -> IO CClock

pokeByteOff :: Ptr b -> Int -> CClock -> IO ()

peek :: Ptr CClock -> IO CClock

poke :: Ptr CClock -> CClock -> IO ()

Storable CTime

Defined in Foreign.C.Types

Methods

sizeOf :: CTime -> Int

alignment :: CTime -> Int

peekElemOff :: Ptr CTime -> Int -> IO CTime

pokeElemOff :: Ptr CTime -> Int -> CTime -> IO ()

peekByteOff :: Ptr b -> Int -> IO CTime

pokeByteOff :: Ptr b -> Int -> CTime -> IO ()

peek :: Ptr CTime -> IO CTime

poke :: Ptr CTime -> CTime -> IO ()

Storable CUSeconds

Defined in Foreign.C.Types

Methods

sizeOf :: CUSeconds -> Int

alignment :: CUSeconds -> Int

peekElemOff :: Ptr CUSeconds -> Int -> IO CUSeconds

pokeElemOff :: Ptr CUSeconds -> Int -> CUSeconds -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUSeconds

pokeByteOff :: Ptr b -> Int -> CUSeconds -> IO ()

peek :: Ptr CUSeconds -> IO CUSeconds

poke :: Ptr CUSeconds -> CUSeconds -> IO ()

Storable CSUSeconds

Defined in Foreign.C.Types

Methods

sizeOf :: CSUSeconds -> Int

alignment :: CSUSeconds -> Int

peekElemOff :: Ptr CSUSeconds -> Int -> IO CSUSeconds

pokeElemOff :: Ptr CSUSeconds -> Int -> CSUSeconds -> IO ()

peekByteOff :: Ptr b -> Int -> IO CSUSeconds

pokeByteOff :: Ptr b -> Int -> CSUSeconds -> IO ()

peek :: Ptr CSUSeconds -> IO CSUSeconds

poke :: Ptr CSUSeconds -> CSUSeconds -> IO ()

Storable CIntPtr

Defined in Foreign.C.Types

Methods

sizeOf :: CIntPtr -> Int

alignment :: CIntPtr -> Int

peekElemOff :: Ptr CIntPtr -> Int -> IO CIntPtr

pokeElemOff :: Ptr CIntPtr -> Int -> CIntPtr -> IO ()

peekByteOff :: Ptr b -> Int -> IO CIntPtr

pokeByteOff :: Ptr b -> Int -> CIntPtr -> IO ()

peek :: Ptr CIntPtr -> IO CIntPtr

poke :: Ptr CIntPtr -> CIntPtr -> IO ()

Storable CUIntPtr

Defined in Foreign.C.Types

Methods

sizeOf :: CUIntPtr -> Int

alignment :: CUIntPtr -> Int

peekElemOff :: Ptr CUIntPtr -> Int -> IO CUIntPtr

pokeElemOff :: Ptr CUIntPtr -> Int -> CUIntPtr -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUIntPtr

pokeByteOff :: Ptr b -> Int -> CUIntPtr -> IO ()

peek :: Ptr CUIntPtr -> IO CUIntPtr

poke :: Ptr CUIntPtr -> CUIntPtr -> IO ()

Storable CIntMax

Defined in Foreign.C.Types

Methods

sizeOf :: CIntMax -> Int

alignment :: CIntMax -> Int

peekElemOff :: Ptr CIntMax -> Int -> IO CIntMax

pokeElemOff :: Ptr CIntMax -> Int -> CIntMax -> IO ()

peekByteOff :: Ptr b -> Int -> IO CIntMax

pokeByteOff :: Ptr b -> Int -> CIntMax -> IO ()

peek :: Ptr CIntMax -> IO CIntMax

poke :: Ptr CIntMax -> CIntMax -> IO ()

Storable CUIntMax

Defined in Foreign.C.Types

Methods

sizeOf :: CUIntMax -> Int

alignment :: CUIntMax -> Int

peekElemOff :: Ptr CUIntMax -> Int -> IO CUIntMax

pokeElemOff :: Ptr CUIntMax -> Int -> CUIntMax -> IO ()

peekByteOff :: Ptr b -> Int -> IO CUIntMax

pokeByteOff :: Ptr b -> Int -> CUIntMax -> IO ()

peek :: Ptr CUIntMax -> IO CUIntMax

poke :: Ptr CUIntMax -> CUIntMax -> IO ()

Storable Fingerprint

Since: base-4.4.0.0

Defined in Foreign.Storable

Methods

sizeOf :: Fingerprint -> Int

alignment :: Fingerprint -> Int

peekElemOff :: Ptr Fingerprint -> Int -> IO Fingerprint

pokeElemOff :: Ptr Fingerprint -> Int -> Fingerprint -> IO ()

peekByteOff :: Ptr b -> Int -> IO Fingerprint

pokeByteOff :: Ptr b -> Int -> Fingerprint -> IO ()

peek :: Ptr Fingerprint -> IO Fingerprint

poke :: Ptr Fingerprint -> Fingerprint -> IO ()

(Storable a, Integral a) => Storable (Ratio a)

Since: base-4.8.0.0

Defined in Foreign.Storable

Methods

sizeOf :: Ratio a -> Int

alignment :: Ratio a -> Int

peekElemOff :: Ptr (Ratio a) -> Int -> IO (Ratio a)

pokeElemOff :: Ptr (Ratio a) -> Int -> Ratio a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (Ratio a)

pokeByteOff :: Ptr b -> Int -> Ratio a -> IO ()

peek :: Ptr (Ratio a) -> IO (Ratio a)

poke :: Ptr (Ratio a) -> Ratio a -> IO ()

Storable (StablePtr a)

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: StablePtr a -> Int

alignment :: StablePtr a -> Int

peekElemOff :: Ptr (StablePtr a) -> Int -> IO (StablePtr a)

pokeElemOff :: Ptr (StablePtr a) -> Int -> StablePtr a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (StablePtr a)

pokeByteOff :: Ptr b -> Int -> StablePtr a -> IO ()

peek :: Ptr (StablePtr a) -> IO (StablePtr a)

poke :: Ptr (StablePtr a) -> StablePtr a -> IO ()

Storable (Ptr a)

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: Ptr a -> Int

alignment :: Ptr a -> Int

peekElemOff :: Ptr (Ptr a) -> Int -> IO (Ptr a)

pokeElemOff :: Ptr (Ptr a) -> Int -> Ptr a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (Ptr a)

pokeByteOff :: Ptr b -> Int -> Ptr a -> IO ()

peek :: Ptr (Ptr a) -> IO (Ptr a)

poke :: Ptr (Ptr a) -> Ptr a -> IO ()

Storable (FunPtr a)

Since: base-2.1

Defined in Foreign.Storable

Methods

sizeOf :: FunPtr a -> Int

alignment :: FunPtr a -> Int

peekElemOff :: Ptr (FunPtr a) -> Int -> IO (FunPtr a)

pokeElemOff :: Ptr (FunPtr a) -> Int -> FunPtr a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (FunPtr a)

pokeByteOff :: Ptr b -> Int -> FunPtr a -> IO ()

peek :: Ptr (FunPtr a) -> IO (FunPtr a)

poke :: Ptr (FunPtr a) -> FunPtr a -> IO ()

Storable a => Storable (Complex a)

Since: base-4.8.0.0

Defined in Data.Complex

Methods

sizeOf :: Complex a -> Int

alignment :: Complex a -> Int

peekElemOff :: Ptr (Complex a) -> Int -> IO (Complex a)

pokeElemOff :: Ptr (Complex a) -> Int -> Complex a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (Complex a)

pokeByteOff :: Ptr b -> Int -> Complex a -> IO ()

peek :: Ptr (Complex a) -> IO (Complex a)

poke :: Ptr (Complex a) -> Complex a -> IO ()

Storable a => Storable (Identity a)

Since: base-4.9.0.0

Defined in Data.Functor.Identity

Methods

sizeOf :: Identity a -> Int

alignment :: Identity a -> Int

peekElemOff :: Ptr (Identity a) -> Int -> IO (Identity a)

pokeElemOff :: Ptr (Identity a) -> Int -> Identity a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (Identity a)

pokeByteOff :: Ptr b -> Int -> Identity a -> IO ()

peek :: Ptr (Identity a) -> IO (Identity a)

poke :: Ptr (Identity a) -> Identity a -> IO ()

Prim a => Storable (PrimStorable a)

Defined in Data.Primitive.Types

Methods

sizeOf :: PrimStorable a -> Int

alignment :: PrimStorable a -> Int

peekElemOff :: Ptr (PrimStorable a) -> Int -> IO (PrimStorable a)

pokeElemOff :: Ptr (PrimStorable a) -> Int -> PrimStorable a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (PrimStorable a)

pokeByteOff :: Ptr b -> Int -> PrimStorable a -> IO ()

peek :: Ptr (PrimStorable a) -> IO (PrimStorable a)

poke :: Ptr (PrimStorable a) -> PrimStorable a -> IO ()

Prim a => Storable (PVar IO a)

poke+peek will result in a new copy of a PVar

Defined in Data.Primitive.PVar.Internal

Methods

sizeOf :: PVar IO a -> Int

alignment :: PVar IO a -> Int

peekElemOff :: Ptr (PVar IO a) -> Int -> IO (PVar IO a)

pokeElemOff :: Ptr (PVar IO a) -> Int -> PVar IO a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (PVar IO a)

pokeByteOff :: Ptr b -> Int -> PVar IO a -> IO ()

peek :: Ptr (PVar IO a) -> IO (PVar IO a)

poke :: Ptr (PVar IO a) -> PVar IO a -> IO ()

Storable a => Storable (Const a b)

Since: base-4.9.0.0

Defined in Data.Functor.Const

Methods

sizeOf :: Const a b -> Int

alignment :: Const a b -> Int

peekElemOff :: Ptr (Const a b) -> Int -> IO (Const a b)

pokeElemOff :: Ptr (Const a b) -> Int -> Const a b -> IO ()

peekByteOff :: Ptr b0 -> Int -> IO (Const a b)

pokeByteOff :: Ptr b0 -> Int -> Const a b -> IO ()

peek :: Ptr (Const a b) -> IO (Const a b)

poke :: Ptr (Const a b) -> Const a b -> IO ()