Data.Vector.Storable.Mutable

Mutable vectors based on Storable.

Mutable vectors of Storable types

data MVector s a

Mutable Storable-based vectors.

Constructors

MVector !Int !(ForeignPtr a)

Instances

Storable a => MVector MVector a

Defined in Data.Vector.Storable.Mutable

Methods

basicLength :: MVector s a -> Int

basicUnsafeSlice :: Int -> Int -> MVector s a -> MVector s a

basicOverlaps :: MVector s a -> MVector s a -> Bool

basicUnsafeNew :: Int -> ST s (MVector s a)

basicInitialize :: MVector s a -> ST s ()

basicUnsafeReplicate :: Int -> a -> ST s (MVector s a)

basicUnsafeRead :: MVector s a -> Int -> ST s a

basicUnsafeWrite :: MVector s a -> Int -> a -> ST s ()

basicClear :: MVector s a -> ST s ()

basicSet :: MVector s a -> a -> ST s ()

basicUnsafeCopy :: MVector s a -> MVector s a -> ST s ()

basicUnsafeMove :: MVector s a -> MVector s a -> ST s ()

basicUnsafeGrow :: MVector s a -> Int -> ST s (MVector s a)

NFData1 (MVector s)

Defined in Data.Vector.Storable.Mutable

Methods

liftRnf :: (a -> ()) -> MVector s a -> ()

NFData (MVector s a)

Defined in Data.Vector.Storable.Mutable

Methods

rnf :: MVector s a -> ()

type IOVector = MVector RealWorld

type STVector s = MVector s

Accessors

Length information

length :: Storable a => MVector s a -> Int

Length of the mutable vector.

null :: Storable a => MVector s a -> Bool

Check whether the vector is empty.

Extracting subvectors

slice

Arguments

:: Storable a

=> Int

i starting index

-> Int

n length

-> MVector s a

-> MVector s a

Yield a part of the mutable vector without copying it. The vector must contain at least i+n elements.

init :: Storable a => MVector s a -> MVector s a

Drop the last element of the mutable vector without making a copy. If the vector is empty, an exception is thrown.

tail :: Storable a => MVector s a -> MVector s a

Drop the first element of the mutable vector without making a copy. If the vector is empty, an exception is thrown.

take :: Storable a => Int -> MVector s a -> MVector s a

Take the n first elements of the mutable vector without making a copy. For negative n, the empty vector is returned. If n is larger than the vector's length, the vector is returned unchanged.

drop :: Storable a => Int -> MVector s a -> MVector s a

Drop the n first element of the mutable vector without making a copy. For negative n, the vector is returned unchanged. If n is larger than the vector's length, the empty vector is returned.

splitAt :: Storable a => Int -> MVector s a -> (MVector s a, MVector s a)

O(1) Split the mutable vector into the first n elements and the remainder, without copying.

Note that splitAt n v is equivalent to (take n v, drop n v), but slightly more efficient.

unsafeSlice

Arguments

:: Storable a

=> Int

starting index

-> Int

length of the slice

-> MVector s a

-> MVector s a

Yield a part of the mutable vector without copying it. No bounds checks are performed.

unsafeInit :: Storable a => MVector s a -> MVector s a

Same as init, but doesn't do range checks.

unsafeTail :: Storable a => MVector s a -> MVector s a

Same as tail, but doesn't do range checks.

unsafeTake :: Storable a => Int -> MVector s a -> MVector s a

Unsafe variant of take. If n is out of range, it will simply create an invalid slice that likely violate memory safety.

unsafeDrop :: Storable a => Int -> MVector s a -> MVector s a

Unsafe variant of drop. If n is out of range, it will simply create an invalid slice that likely violate memory safety.

Overlapping

overlaps :: Storable a => MVector s a -> MVector s a -> Bool

Check whether two vectors overlap.

Construction

Initialisation

new :: (PrimMonad m, Storable a) => Int -> m (MVector (PrimState m) a)

Create a mutable vector of the given length.

unsafeNew :: (PrimMonad m, Storable a) => Int -> m (MVector (PrimState m) a)

Create a mutable vector of the given length. The vector content is uninitialized, which means it is filled with whatever the underlying memory buffer happens to contain.

Since: 0.5

replicate :: (PrimMonad m, Storable a) => Int -> a -> m (MVector (PrimState m) a)

Create a mutable vector of the given length (0 if the length is negative) and fill it with an initial value.

replicateM :: (PrimMonad m, Storable a) => Int -> m a -> m (MVector (PrimState m) a)

Create a mutable vector of the given length (0 if the length is negative) and fill it with values produced by repeatedly executing the monadic action.

generate :: (PrimMonad m, Storable a) => Int -> (Int -> a) -> m (MVector (PrimState m) a)

O(n) Create a mutable vector of the given length (0 if the length is negative) and fill it with the results of applying the function to each index. Iteration starts at index 0.

Since: 0.12.3.0

generateM :: (PrimMonad m, Storable a) => Int -> (Int -> m a) -> m (MVector (PrimState m) a)

O(n) Create a mutable vector of the given length (0 if the length is negative) and fill it with the results of applying the monadic function to each index. Iteration starts at index 0.

Since: 0.12.3.0

clone :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> m (MVector (PrimState m) a)

Create a copy of a mutable vector.

Growing

grow :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> m (MVector (PrimState m) a)

Grow a storable vector by the given number of elements. The number must be non-negative. This has the same semantics as grow for generic vectors.

Examples

>>> import qualified Data.Vector.Storable as VS
>>> import qualified Data.Vector.Storable.Mutable as MVS
>>> mv <- VS.thaw $ VS.fromList ([10, 20, 30] :: [Int])
>>> mv' <- MVS.grow mv 2

Extra memory at the end of the newly allocated vector is initialized to 0 bytes, which for Storable instances will usually correspond to some default value for a particular type, e.g. 0 for Int, False for Bool, etc. However, if unsafeGrow was used instead, this would not have been guaranteed and some garbage would be there instead.

>>> VS.freeze mv'
[10,20,30,0,0]

Having the extra space we can write new values in there:

>>> MVS.write mv' 3 999
>>> VS.freeze mv'
[10,20,30,999,0]

It is important to note that the source mutable vector is not affected when the newly allocated one is mutated.

>>> MVS.write mv' 2 888
>>> VS.freeze mv'
[10,20,888,999,0]
>>> VS.freeze mv
[10,20,30]

Since: 0.5

unsafeGrow :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> m (MVector (PrimState m) a)

Grow a vector by the given number of elements. The number must be non-negative, but this is not checked. This has the same semantics as unsafeGrow for generic vectors.

Since: 0.5

Restricting memory usage

clear :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> m ()

Reset all elements of the vector to some undefined value, clearing all references to external objects. This is a noop.

Accessing individual elements

read :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> m a

Yield the element at the given position. Will throw an exception if the index is out of range.

Examples

>>> import qualified Data.Vector.Storable.Mutable as MVS
>>> v <- MVS.generate 10 (\x -> x*x)
>>> MVS.read v 3
9

readMaybe :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> m (Maybe a)

Yield the element at the given position. Returns Nothing if the index is out of range.

Examples

>>> import qualified Data.Vector.Storable.Mutable as MVS
>>> v <- MVS.generate 10 (\x -> x*x)
>>> MVS.readMaybe v 3
Just 9
>>> MVS.readMaybe v 13
Nothing

Since: 0.13

write :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> a -> m ()

Replace the element at the given position.

modify :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> (a -> a) -> Int -> m ()

Modify the element at the given position.

modifyM :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> (a -> m a) -> Int -> m ()

Modify the element at the given position using a monadic function.

Since: 0.12.3.0

swap :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> Int -> m ()

Swap the elements at the given positions.

exchange :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> a -> m a

Replace the element at the given position and return the old element.

unsafeRead :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> m a

Yield the element at the given position. No bounds checks are performed.

unsafeWrite :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> a -> m ()

Replace the element at the given position. No bounds checks are performed.

unsafeModify :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> (a -> a) -> Int -> m ()

Modify the element at the given position. No bounds checks are performed.

unsafeModifyM :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> (a -> m a) -> Int -> m ()

Modify the element at the given position using a monadic function. No bounds checks are performed.

Since: 0.12.3.0

unsafeSwap :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> Int -> m ()

Swap the elements at the given positions. No bounds checks are performed.

unsafeExchange :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> Int -> a -> m a

Replace the element at the given position and return the old element. No bounds checks are performed.

Folds

mapM_ :: (PrimMonad m, Storable a) => (a -> m b) -> MVector (PrimState m) a -> m ()

O(n) Apply the monadic action to every element of the vector, discarding the results.

Since: 0.12.3.0

imapM_ :: (PrimMonad m, Storable a) => (Int -> a -> m b) -> MVector (PrimState m) a -> m ()

O(n) Apply the monadic action to every element of the vector and its index, discarding the results.

Since: 0.12.3.0

forM_ :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> (a -> m b) -> m ()

O(n) Apply the monadic action to every element of the vector, discarding the results. It's the same as flip mapM_.

Since: 0.12.3.0

iforM_ :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> (Int -> a -> m b) -> m ()

O(n) Apply the monadic action to every element of the vector and its index, discarding the results. It's the same as flip imapM_.

Since: 0.12.3.0

foldl :: (PrimMonad m, Storable a) => (b -> a -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure left fold.

Since: 0.12.3.0

foldl' :: (PrimMonad m, Storable a) => (b -> a -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure left fold with strict accumulator.

Since: 0.12.3.0

foldM :: (PrimMonad m, Storable a) => (b -> a -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic fold.

Since: 0.12.3.0

foldM' :: (PrimMonad m, Storable a) => (b -> a -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic fold with strict accumulator.

Since: 0.12.3.0

foldr :: (PrimMonad m, Storable a) => (a -> b -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure right fold.

Since: 0.12.3.0

foldr' :: (PrimMonad m, Storable a) => (a -> b -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure right fold with strict accumulator.

Since: 0.12.3.0

foldrM :: (PrimMonad m, Storable a) => (a -> b -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic right fold.

Since: 0.12.3.0

foldrM' :: (PrimMonad m, Storable a) => (a -> b -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic right fold with strict accumulator.

Since: 0.12.3.0

ifoldl :: (PrimMonad m, Storable a) => (b -> Int -> a -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure left fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldl' :: (PrimMonad m, Storable a) => (b -> Int -> a -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure left fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

ifoldM :: (PrimMonad m, Storable a) => (b -> Int -> a -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldM' :: (PrimMonad m, Storable a) => (b -> Int -> a -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

ifoldr :: (PrimMonad m, Storable a) => (Int -> a -> b -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure right fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldr' :: (PrimMonad m, Storable a) => (Int -> a -> b -> b) -> b -> MVector (PrimState m) a -> m b

O(n) Pure right fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

ifoldrM :: (PrimMonad m, Storable a) => (Int -> a -> b -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic right fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldrM' :: (PrimMonad m, Storable a) => (Int -> a -> b -> m b) -> b -> MVector (PrimState m) a -> m b

O(n) Monadic right fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

Modifying vectors

nextPermutation :: (PrimMonad m, Storable e, Ord e) => MVector (PrimState m) e -> m Bool

Compute the (lexicographically) next permutation of the given vector in-place. Returns False when the input is the last permutation.

Filling and copying

set :: (PrimMonad m, Storable a) => MVector (PrimState m) a -> a -> m ()

Set all elements of the vector to the given value.

copy

Arguments

:: (PrimMonad m, Storable a)

=> MVector (PrimState m) a

target

-> MVector (PrimState m) a

source

-> m ()

Copy a vector. The two vectors must have the same length and may not overlap.

move

Arguments

:: (PrimMonad m, Storable a)

=> MVector (PrimState m) a

target

-> MVector (PrimState m) a

source

-> m ()

Move the contents of a vector. The two vectors must have the same length.

If the vectors do not overlap, then this is equivalent to copy. Otherwise, the copying is performed as if the source vector were copied to a temporary vector and then the temporary vector was copied to the target vector.

unsafeCopy

Arguments

:: (PrimMonad m, Storable a)

=> MVector (PrimState m) a

target

-> MVector (PrimState m) a

source

-> m ()

Copy a vector. The two vectors must have the same length and may not overlap, but this is not checked.

unsafeMove

Arguments

:: (PrimMonad m, Storable a)

=> MVector (PrimState m) a

target

-> MVector (PrimState m) a

source

-> m ()

Move the contents of a vector. The two vectors must have the same length, but this is not checked.

If the vectors do not overlap, then this is equivalent to unsafeCopy. Otherwise, the copying is performed as if the source vector were copied to a temporary vector and then the temporary vector was copied to the target vector.

Unsafe conversions

unsafeCast :: forall a b s. (Storable a, Storable b) => MVector s a -> MVector s b

O(1) Unsafely cast a mutable vector from one element type to another. The operation just changes the type of the underlying pointer and does not modify the elements.

The resulting vector contains as many elements as can fit into the underlying memory block.

unsafeCoerceMVector :: Coercible a b => MVector s a -> MVector s b

O(1) Unsafely coerce a mutable vector from one element type to another, representationally equal type. The operation just changes the type of the underlying pointer and does not modify the elements.

This is marginally safer than unsafeCast, since this function imposes an extra Coercible constraint. This function is still not safe, however, since it cannot guarantee that the two types have memory-compatible Storable instances.

Raw pointers

unsafeFromForeignPtr

Arguments

:: Storable a

=> ForeignPtr a

pointer

-> Int

offset

-> Int

length

-> MVector s a

O(1) Create a mutable vector from a ForeignPtr with an offset and a length.

Modifying data through the ForeignPtr afterwards is unsafe if the vector could have been frozen before the modification.

If your offset is 0, it is more efficient to use unsafeFromForeignPtr0.

unsafeFromForeignPtr0

Arguments

:: ForeignPtr a

pointer

-> Int

length

-> MVector s a

O(1) Create a mutable vector from a ForeignPtr and a length.

It is assumed that the pointer points directly to the data (no offset). Use unsafeFromForeignPtr if you need to specify an offset.

Modifying data through the ForeignPtr afterwards is unsafe if the vector could have been frozen before the modification.

unsafeToForeignPtr :: MVector s a -> (ForeignPtr a, Int, Int)

O(1) Yield the underlying ForeignPtr together with the offset to the data and its length. Modifying the data through the ForeignPtr is unsafe if the vector could have been frozen before the modification.

unsafeToForeignPtr0 :: MVector s a -> (ForeignPtr a, Int)

O(1) Yield the underlying ForeignPtr together with its length.

You can assume that the pointer points directly to the data (no offset).

Modifying the data through the ForeignPtr is unsafe if the vector could have been frozen before the modification.

unsafeWith :: Storable a => IOVector a -> (Ptr a -> IO b) -> IO b

Pass a pointer to the vector's data to the IO action. Modifying data through the pointer is unsafe if the vector could have been frozen before the modification.

Re-exports

class Storable a

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)

Instances

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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 IntPtr

Defined in Foreign.Ptr

Methods

sizeOf :: IntPtr -> Int

alignment :: IntPtr -> Int

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

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

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

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

peek :: Ptr IntPtr -> IO IntPtr

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

Storable WordPtr

Defined in Foreign.Ptr

Methods

sizeOf :: WordPtr -> Int

alignment :: WordPtr -> Int

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

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

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

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

peek :: Ptr WordPtr -> IO WordPtr

poke :: Ptr WordPtr -> WordPtr -> 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 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 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 IoSubSystem

Since: base-4.9.0.0

Defined in GHC.RTS.Flags

Methods

sizeOf :: IoSubSystem -> Int

alignment :: IoSubSystem -> Int

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

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

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

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

peek :: Ptr IoSubSystem -> IO IoSubSystem

poke :: Ptr IoSubSystem -> IoSubSystem -> 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 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 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 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 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 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 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 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 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 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 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 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 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 CNfds

Defined in System.Posix.Types

Methods

sizeOf :: CNfds -> Int

alignment :: CNfds -> Int

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

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

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

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

peek :: Ptr CNfds -> IO CNfds

poke :: Ptr CNfds -> CNfds -> 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 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 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 CSocklen

Defined in System.Posix.Types

Methods

sizeOf :: CSocklen -> Int

alignment :: CSocklen -> Int

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

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

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

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

peek :: Ptr CSocklen -> IO CSocklen

poke :: Ptr CSocklen -> CSocklen -> 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 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 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 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 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 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 ()

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 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 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 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 ()

Storable a => Storable (Down a)

Since: base-4.14.0.0

Defined in Data.Ord

Methods

sizeOf :: Down a -> Int

alignment :: Down a -> Int

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

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

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

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

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

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

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 ()

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 ()

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

Class of monads which can perform primitive state-transformer actions.

Minimal complete definition

primitive

Instances

PrimMonad IO

Defined in Control.Monad.Primitive

Associated Types

type PrimState IO

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)

Methods

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

PrimMonad (ST s)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ST s)

Methods

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

PrimMonad m => PrimMonad (ListT m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ListT m)

Methods

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

PrimMonad m => PrimMonad (MaybeT m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (MaybeT m)

Methods

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

Methods

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

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

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ErrorT e m)

Methods

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

PrimMonad m => PrimMonad (ExceptT e m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ExceptT e m)

Methods

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

PrimMonad m => PrimMonad (IdentityT m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (IdentityT m)

Methods

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

PrimMonad m => PrimMonad (ReaderT r m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (ReaderT r m)

Methods

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

PrimMonad m => PrimMonad (SelectT r m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (SelectT r m)

Methods

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

PrimMonad m => PrimMonad (StateT s m)

Defined in Control.Monad.Primitive

Associated Types

type PrimState (StateT s m)

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)

Methods

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

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

Defined in Control.Monad.Primitive

Associated Types

type PrimState (WriterT w m)

Methods

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

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

Defined in Control.Monad.Primitive

Associated Types

type PrimState (WriterT w m)

Methods

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

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

Defined in Control.Monad.Primitive

Associated Types

type PrimState (WriterT w m)

Methods

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

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)

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)

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)

Methods

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

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

State token type.

Instances

type PrimState IO

Defined in Control.Monad.Primitive

type PrimState IO = RealWorld

type PrimState (ST s)

Defined in Control.Monad.Primitive

type PrimState (ST s) = s

type PrimState (ST s)

Defined in Control.Monad.Primitive

type PrimState (ST s) = s

type PrimState (ListT m)

Defined in Control.Monad.Primitive

type PrimState (ListT m) = PrimState m

type PrimState (MaybeT m)

Defined in Control.Monad.Primitive

type PrimState (MaybeT m) = PrimState m

type PrimState (AccumT w m)

Defined in Control.Monad.Primitive

type PrimState (AccumT w m) = PrimState m

type PrimState (ErrorT e m)

Defined in Control.Monad.Primitive

type PrimState (ErrorT e m) = PrimState m

type PrimState (ExceptT e m)

Defined in Control.Monad.Primitive

type PrimState (ExceptT e m) = PrimState m

type PrimState (IdentityT m)

Defined in Control.Monad.Primitive

type PrimState (IdentityT m) = PrimState m

type PrimState (ReaderT r m)

Defined in Control.Monad.Primitive

type PrimState (ReaderT r m) = PrimState m

type PrimState (SelectT r m)

Defined in Control.Monad.Primitive

type PrimState (SelectT r m) = PrimState m

type PrimState (StateT s m)

Defined in Control.Monad.Primitive

type PrimState (StateT s m) = PrimState m

type PrimState (StateT s m)

Defined in Control.Monad.Primitive

type PrimState (StateT s m) = PrimState m

type PrimState (WriterT w m)

Defined in Control.Monad.Primitive

type PrimState (WriterT w m) = PrimState m

type PrimState (WriterT w m)

Defined in Control.Monad.Primitive

type PrimState (WriterT w m) = PrimState m

type PrimState (WriterT w m)

Defined in Control.Monad.Primitive

type PrimState (WriterT w m) = PrimState m

type PrimState (ContT r m)

Defined in Control.Monad.Primitive

type PrimState (ContT r m) = PrimState m

type PrimState (RWST r w s m)

Defined in Control.Monad.Primitive

type PrimState (RWST r w s m) = PrimState m

type PrimState (RWST r w s m)

Defined in Control.Monad.Primitive

type PrimState (RWST r w s m) = PrimState m

type PrimState (RWST r w s m)

Defined in Control.Monad.Primitive

type PrimState (RWST r w s m) = PrimState m

data RealWorld

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#.