Copyright	(c) The FFI task force 2001
License	see libraries/base/LICENSE
Maintainer	ffi@haskell.org
Stability	provisional
Portability	portable
Safe Haskell	Safe
Language	Haskell2010

Foreign.Storable

Description

The module Foreign.Storable provides most elementary support for marshalling and is part of the language-independent portion of the Foreign Function Interface (FFI), and will normally be imported via the Foreign module.

Synopsis

class Storable a where
- sizeOf :: a -> Int
- alignment :: a -> Int
- peekElemOff :: Ptr a -> Int -> IO a
- pokeElemOff :: Ptr a -> Int -> a -> IO ()
- peekByteOff :: Ptr b -> Int -> IO a
- pokeByteOff :: Ptr b -> Int -> a -> IO ()
- peek :: Ptr a -> IO a
- poke :: Ptr a -> a -> IO ()

Documentation

class Storable a where Source #

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

sizeOf :: a -> Int Source #

Computes the storage requirements (in bytes) of the argument. The value of the argument is not used.

alignment :: a -> Int Source #

Computes the alignment constraint of the argument. An alignment constraint x is fulfilled by any address divisible by x. The alignment must be a power of two if this instance is to be used with alloca or allocaArray. The value of the argument is not used.

peekElemOff :: Ptr a -> Int -> IO a Source #

Read a value from a memory area regarded as an array of values of the same kind. The first argument specifies the start address of the array and the second the index into the array (the first element of the array has index 0). The following equality holds,

peekElemOff addr idx = IOExts.fixIO $ \result ->
  peek (addr `plusPtr` (idx * sizeOf result))

Note that this is only a specification, not necessarily the concrete implementation of the function.

pokeElemOff :: Ptr a -> Int -> a -> IO () Source #

Write a value to a memory area regarded as an array of values of the same kind. The following equality holds:

pokeElemOff addr idx x =
  poke (addr `plusPtr` (idx * sizeOf x)) x

peekByteOff :: Ptr b -> Int -> IO a Source #

Read a value from a memory location given by a base address and offset. The following equality holds:

peekByteOff addr off = peek (addr `plusPtr` off)

pokeByteOff :: Ptr b -> Int -> a -> IO () Source #

Write a value to a memory location given by a base address and offset. The following equality holds:

pokeByteOff addr off x = poke (addr `plusPtr` off) x

peek :: Ptr a -> IO a Source #

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 () Source #

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

Instances

Instances details

Storable Fingerprint Source #	Since: base-4.4.0.0
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Fingerprint -> Int Source # alignment :: Fingerprint -> Int Source # peekElemOff :: Ptr Fingerprint -> Int -> IO Fingerprint Source # pokeElemOff :: Ptr Fingerprint -> Int -> Fingerprint -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Fingerprint Source # pokeByteOff :: Ptr b -> Int -> Fingerprint -> IO () Source # peek :: Ptr Fingerprint -> IO Fingerprint Source # poke :: Ptr Fingerprint -> Fingerprint -> IO () Source #
Storable CBool Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CBool -> Int Source # alignment :: CBool -> Int Source # peekElemOff :: Ptr CBool -> Int -> IO CBool Source # pokeElemOff :: Ptr CBool -> Int -> CBool -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CBool Source # pokeByteOff :: Ptr b -> Int -> CBool -> IO () Source # peek :: Ptr CBool -> IO CBool Source # poke :: Ptr CBool -> CBool -> IO () Source #
Storable CChar Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CChar -> Int Source # alignment :: CChar -> Int Source # peekElemOff :: Ptr CChar -> Int -> IO CChar Source # pokeElemOff :: Ptr CChar -> Int -> CChar -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CChar Source # pokeByteOff :: Ptr b -> Int -> CChar -> IO () Source # peek :: Ptr CChar -> IO CChar Source # poke :: Ptr CChar -> CChar -> IO () Source #
Storable CClock Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CClock -> Int Source # alignment :: CClock -> Int Source # peekElemOff :: Ptr CClock -> Int -> IO CClock Source # pokeElemOff :: Ptr CClock -> Int -> CClock -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CClock Source # pokeByteOff :: Ptr b -> Int -> CClock -> IO () Source # peek :: Ptr CClock -> IO CClock Source # poke :: Ptr CClock -> CClock -> IO () Source #
Storable CDouble Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CDouble -> Int Source # alignment :: CDouble -> Int Source # peekElemOff :: Ptr CDouble -> Int -> IO CDouble Source # pokeElemOff :: Ptr CDouble -> Int -> CDouble -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CDouble Source # pokeByteOff :: Ptr b -> Int -> CDouble -> IO () Source # peek :: Ptr CDouble -> IO CDouble Source # poke :: Ptr CDouble -> CDouble -> IO () Source #
Storable CFloat Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CFloat -> Int Source # alignment :: CFloat -> Int Source # peekElemOff :: Ptr CFloat -> Int -> IO CFloat Source # pokeElemOff :: Ptr CFloat -> Int -> CFloat -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CFloat Source # pokeByteOff :: Ptr b -> Int -> CFloat -> IO () Source # peek :: Ptr CFloat -> IO CFloat Source # poke :: Ptr CFloat -> CFloat -> IO () Source #
Storable CInt Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CInt -> Int Source # alignment :: CInt -> Int Source # peekElemOff :: Ptr CInt -> Int -> IO CInt Source # pokeElemOff :: Ptr CInt -> Int -> CInt -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CInt Source # pokeByteOff :: Ptr b -> Int -> CInt -> IO () Source # peek :: Ptr CInt -> IO CInt Source # poke :: Ptr CInt -> CInt -> IO () Source #
Storable CIntMax Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CIntMax -> Int Source # alignment :: CIntMax -> Int Source # peekElemOff :: Ptr CIntMax -> Int -> IO CIntMax Source # pokeElemOff :: Ptr CIntMax -> Int -> CIntMax -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CIntMax Source # pokeByteOff :: Ptr b -> Int -> CIntMax -> IO () Source # peek :: Ptr CIntMax -> IO CIntMax Source # poke :: Ptr CIntMax -> CIntMax -> IO () Source #
Storable CIntPtr Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CIntPtr -> Int Source # alignment :: CIntPtr -> Int Source # peekElemOff :: Ptr CIntPtr -> Int -> IO CIntPtr Source # pokeElemOff :: Ptr CIntPtr -> Int -> CIntPtr -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CIntPtr Source # pokeByteOff :: Ptr b -> Int -> CIntPtr -> IO () Source # peek :: Ptr CIntPtr -> IO CIntPtr Source # poke :: Ptr CIntPtr -> CIntPtr -> IO () Source #
Storable CLLong Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CLLong -> Int Source # alignment :: CLLong -> Int Source # peekElemOff :: Ptr CLLong -> Int -> IO CLLong Source # pokeElemOff :: Ptr CLLong -> Int -> CLLong -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CLLong Source # pokeByteOff :: Ptr b -> Int -> CLLong -> IO () Source # peek :: Ptr CLLong -> IO CLLong Source # poke :: Ptr CLLong -> CLLong -> IO () Source #
Storable CLong Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CLong -> Int Source # alignment :: CLong -> Int Source # peekElemOff :: Ptr CLong -> Int -> IO CLong Source # pokeElemOff :: Ptr CLong -> Int -> CLong -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CLong Source # pokeByteOff :: Ptr b -> Int -> CLong -> IO () Source # peek :: Ptr CLong -> IO CLong Source # poke :: Ptr CLong -> CLong -> IO () Source #
Storable CPtrdiff Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CPtrdiff -> Int Source # alignment :: CPtrdiff -> Int Source # peekElemOff :: Ptr CPtrdiff -> Int -> IO CPtrdiff Source # pokeElemOff :: Ptr CPtrdiff -> Int -> CPtrdiff -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CPtrdiff Source # pokeByteOff :: Ptr b -> Int -> CPtrdiff -> IO () Source # peek :: Ptr CPtrdiff -> IO CPtrdiff Source # poke :: Ptr CPtrdiff -> CPtrdiff -> IO () Source #
Storable CSChar Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CSChar -> Int Source # alignment :: CSChar -> Int Source # peekElemOff :: Ptr CSChar -> Int -> IO CSChar Source # pokeElemOff :: Ptr CSChar -> Int -> CSChar -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSChar Source # pokeByteOff :: Ptr b -> Int -> CSChar -> IO () Source # peek :: Ptr CSChar -> IO CSChar Source # poke :: Ptr CSChar -> CSChar -> IO () Source #
Storable CSUSeconds Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CSUSeconds -> Int Source # alignment :: CSUSeconds -> Int Source # peekElemOff :: Ptr CSUSeconds -> Int -> IO CSUSeconds Source # pokeElemOff :: Ptr CSUSeconds -> Int -> CSUSeconds -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSUSeconds Source # pokeByteOff :: Ptr b -> Int -> CSUSeconds -> IO () Source # peek :: Ptr CSUSeconds -> IO CSUSeconds Source # poke :: Ptr CSUSeconds -> CSUSeconds -> IO () Source #
Storable CShort Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CShort -> Int Source # alignment :: CShort -> Int Source # peekElemOff :: Ptr CShort -> Int -> IO CShort Source # pokeElemOff :: Ptr CShort -> Int -> CShort -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CShort Source # pokeByteOff :: Ptr b -> Int -> CShort -> IO () Source # peek :: Ptr CShort -> IO CShort Source # poke :: Ptr CShort -> CShort -> IO () Source #
Storable CSigAtomic Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CSigAtomic -> Int Source # alignment :: CSigAtomic -> Int Source # peekElemOff :: Ptr CSigAtomic -> Int -> IO CSigAtomic Source # pokeElemOff :: Ptr CSigAtomic -> Int -> CSigAtomic -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSigAtomic Source # pokeByteOff :: Ptr b -> Int -> CSigAtomic -> IO () Source # peek :: Ptr CSigAtomic -> IO CSigAtomic Source # poke :: Ptr CSigAtomic -> CSigAtomic -> IO () Source #
Storable CSize Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CSize -> Int Source # alignment :: CSize -> Int Source # peekElemOff :: Ptr CSize -> Int -> IO CSize Source # pokeElemOff :: Ptr CSize -> Int -> CSize -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSize Source # pokeByteOff :: Ptr b -> Int -> CSize -> IO () Source # peek :: Ptr CSize -> IO CSize Source # poke :: Ptr CSize -> CSize -> IO () Source #
Storable CTime Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CTime -> Int Source # alignment :: CTime -> Int Source # peekElemOff :: Ptr CTime -> Int -> IO CTime Source # pokeElemOff :: Ptr CTime -> Int -> CTime -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CTime Source # pokeByteOff :: Ptr b -> Int -> CTime -> IO () Source # peek :: Ptr CTime -> IO CTime Source # poke :: Ptr CTime -> CTime -> IO () Source #
Storable CUChar Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CUChar -> Int Source # alignment :: CUChar -> Int Source # peekElemOff :: Ptr CUChar -> Int -> IO CUChar Source # pokeElemOff :: Ptr CUChar -> Int -> CUChar -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUChar Source # pokeByteOff :: Ptr b -> Int -> CUChar -> IO () Source # peek :: Ptr CUChar -> IO CUChar Source # poke :: Ptr CUChar -> CUChar -> IO () Source #
Storable CUInt Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CUInt -> Int Source # alignment :: CUInt -> Int Source # peekElemOff :: Ptr CUInt -> Int -> IO CUInt Source # pokeElemOff :: Ptr CUInt -> Int -> CUInt -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUInt Source # pokeByteOff :: Ptr b -> Int -> CUInt -> IO () Source # peek :: Ptr CUInt -> IO CUInt Source # poke :: Ptr CUInt -> CUInt -> IO () Source #
Storable CUIntMax Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CUIntMax -> Int Source # alignment :: CUIntMax -> Int Source # peekElemOff :: Ptr CUIntMax -> Int -> IO CUIntMax Source # pokeElemOff :: Ptr CUIntMax -> Int -> CUIntMax -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUIntMax Source # pokeByteOff :: Ptr b -> Int -> CUIntMax -> IO () Source # peek :: Ptr CUIntMax -> IO CUIntMax Source # poke :: Ptr CUIntMax -> CUIntMax -> IO () Source #
Storable CUIntPtr Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CUIntPtr -> Int Source # alignment :: CUIntPtr -> Int Source # peekElemOff :: Ptr CUIntPtr -> Int -> IO CUIntPtr Source # pokeElemOff :: Ptr CUIntPtr -> Int -> CUIntPtr -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUIntPtr Source # pokeByteOff :: Ptr b -> Int -> CUIntPtr -> IO () Source # peek :: Ptr CUIntPtr -> IO CUIntPtr Source # poke :: Ptr CUIntPtr -> CUIntPtr -> IO () Source #
Storable CULLong Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CULLong -> Int Source # alignment :: CULLong -> Int Source # peekElemOff :: Ptr CULLong -> Int -> IO CULLong Source # pokeElemOff :: Ptr CULLong -> Int -> CULLong -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CULLong Source # pokeByteOff :: Ptr b -> Int -> CULLong -> IO () Source # peek :: Ptr CULLong -> IO CULLong Source # poke :: Ptr CULLong -> CULLong -> IO () Source #
Storable CULong Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CULong -> Int Source # alignment :: CULong -> Int Source # peekElemOff :: Ptr CULong -> Int -> IO CULong Source # pokeElemOff :: Ptr CULong -> Int -> CULong -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CULong Source # pokeByteOff :: Ptr b -> Int -> CULong -> IO () Source # peek :: Ptr CULong -> IO CULong Source # poke :: Ptr CULong -> CULong -> IO () Source #
Storable CUSeconds Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CUSeconds -> Int Source # alignment :: CUSeconds -> Int Source # peekElemOff :: Ptr CUSeconds -> Int -> IO CUSeconds Source # pokeElemOff :: Ptr CUSeconds -> Int -> CUSeconds -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUSeconds Source # pokeByteOff :: Ptr b -> Int -> CUSeconds -> IO () Source # peek :: Ptr CUSeconds -> IO CUSeconds Source # poke :: Ptr CUSeconds -> CUSeconds -> IO () Source #
Storable CUShort Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CUShort -> Int Source # alignment :: CUShort -> Int Source # peekElemOff :: Ptr CUShort -> Int -> IO CUShort Source # pokeElemOff :: Ptr CUShort -> Int -> CUShort -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUShort Source # pokeByteOff :: Ptr b -> Int -> CUShort -> IO () Source # peek :: Ptr CUShort -> IO CUShort Source # poke :: Ptr CUShort -> CUShort -> IO () Source #
Storable CWchar Source #
Instance details Defined in GHC.Internal.Foreign.C.Types Methods sizeOf :: CWchar -> Int Source # alignment :: CWchar -> Int Source # peekElemOff :: Ptr CWchar -> Int -> IO CWchar Source # pokeElemOff :: Ptr CWchar -> Int -> CWchar -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CWchar Source # pokeByteOff :: Ptr b -> Int -> CWchar -> IO () Source # peek :: Ptr CWchar -> IO CWchar Source # poke :: Ptr CWchar -> CWchar -> IO () Source #
Storable IntPtr Source #
Instance details Defined in GHC.Internal.Foreign.Ptr Methods sizeOf :: IntPtr -> Int Source # alignment :: IntPtr -> Int Source # peekElemOff :: Ptr IntPtr -> Int -> IO IntPtr Source # pokeElemOff :: Ptr IntPtr -> Int -> IntPtr -> IO () Source # peekByteOff :: Ptr b -> Int -> IO IntPtr Source # pokeByteOff :: Ptr b -> Int -> IntPtr -> IO () Source # peek :: Ptr IntPtr -> IO IntPtr Source # poke :: Ptr IntPtr -> IntPtr -> IO () Source #
Storable WordPtr Source #
Instance details Defined in GHC.Internal.Foreign.Ptr Methods sizeOf :: WordPtr -> Int Source # alignment :: WordPtr -> Int Source # peekElemOff :: Ptr WordPtr -> Int -> IO WordPtr Source # pokeElemOff :: Ptr WordPtr -> Int -> WordPtr -> IO () Source # peekByteOff :: Ptr b -> Int -> IO WordPtr Source # pokeByteOff :: Ptr b -> Int -> WordPtr -> IO () Source # peek :: Ptr WordPtr -> IO WordPtr Source # poke :: Ptr WordPtr -> WordPtr -> IO () Source #
Storable HalfWord Source #
Instance details Defined in GHC.Internal.Heap.InfoTable.Types Methods sizeOf :: HalfWord -> Int Source # alignment :: HalfWord -> Int Source # peekElemOff :: Ptr HalfWord -> Int -> IO HalfWord Source # pokeElemOff :: Ptr HalfWord -> Int -> HalfWord -> IO () Source # peekByteOff :: Ptr b -> Int -> IO HalfWord Source # pokeByteOff :: Ptr b -> Int -> HalfWord -> IO () Source # peek :: Ptr HalfWord -> IO HalfWord Source # poke :: Ptr HalfWord -> HalfWord -> IO () Source #
Storable Int16 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Int16 -> Int Source # alignment :: Int16 -> Int Source # peekElemOff :: Ptr Int16 -> Int -> IO Int16 Source # pokeElemOff :: Ptr Int16 -> Int -> Int16 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Int16 Source # pokeByteOff :: Ptr b -> Int -> Int16 -> IO () Source # peek :: Ptr Int16 -> IO Int16 Source # poke :: Ptr Int16 -> Int16 -> IO () Source #
Storable Int32 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Int32 -> Int Source # alignment :: Int32 -> Int Source # peekElemOff :: Ptr Int32 -> Int -> IO Int32 Source # pokeElemOff :: Ptr Int32 -> Int -> Int32 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Int32 Source # pokeByteOff :: Ptr b -> Int -> Int32 -> IO () Source # peek :: Ptr Int32 -> IO Int32 Source # poke :: Ptr Int32 -> Int32 -> IO () Source #
Storable Int64 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Int64 -> Int Source # alignment :: Int64 -> Int Source # peekElemOff :: Ptr Int64 -> Int -> IO Int64 Source # pokeElemOff :: Ptr Int64 -> Int -> Int64 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Int64 Source # pokeByteOff :: Ptr b -> Int -> Int64 -> IO () Source # peek :: Ptr Int64 -> IO Int64 Source # poke :: Ptr Int64 -> Int64 -> IO () Source #
Storable Int8 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Int8 -> Int Source # alignment :: Int8 -> Int Source # peekElemOff :: Ptr Int8 -> Int -> IO Int8 Source # pokeElemOff :: Ptr Int8 -> Int -> Int8 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Int8 Source # pokeByteOff :: Ptr b -> Int -> Int8 -> IO () Source # peek :: Ptr Int8 -> IO Int8 Source # poke :: Ptr Int8 -> Int8 -> IO () Source #
Storable CBlkCnt Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CBlkCnt -> Int Source # alignment :: CBlkCnt -> Int Source # peekElemOff :: Ptr CBlkCnt -> Int -> IO CBlkCnt Source # pokeElemOff :: Ptr CBlkCnt -> Int -> CBlkCnt -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CBlkCnt Source # pokeByteOff :: Ptr b -> Int -> CBlkCnt -> IO () Source # peek :: Ptr CBlkCnt -> IO CBlkCnt Source # poke :: Ptr CBlkCnt -> CBlkCnt -> IO () Source #
Storable CBlkSize Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CBlkSize -> Int Source # alignment :: CBlkSize -> Int Source # peekElemOff :: Ptr CBlkSize -> Int -> IO CBlkSize Source # pokeElemOff :: Ptr CBlkSize -> Int -> CBlkSize -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CBlkSize Source # pokeByteOff :: Ptr b -> Int -> CBlkSize -> IO () Source # peek :: Ptr CBlkSize -> IO CBlkSize Source # poke :: Ptr CBlkSize -> CBlkSize -> IO () Source #
Storable CCc Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CCc -> Int Source # alignment :: CCc -> Int Source # peekElemOff :: Ptr CCc -> Int -> IO CCc Source # pokeElemOff :: Ptr CCc -> Int -> CCc -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CCc Source # pokeByteOff :: Ptr b -> Int -> CCc -> IO () Source # peek :: Ptr CCc -> IO CCc Source # poke :: Ptr CCc -> CCc -> IO () Source #
Storable CClockId Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CClockId -> Int Source # alignment :: CClockId -> Int Source # peekElemOff :: Ptr CClockId -> Int -> IO CClockId Source # pokeElemOff :: Ptr CClockId -> Int -> CClockId -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CClockId Source # pokeByteOff :: Ptr b -> Int -> CClockId -> IO () Source # peek :: Ptr CClockId -> IO CClockId Source # poke :: Ptr CClockId -> CClockId -> IO () Source #
Storable CDev Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CDev -> Int Source # alignment :: CDev -> Int Source # peekElemOff :: Ptr CDev -> Int -> IO CDev Source # pokeElemOff :: Ptr CDev -> Int -> CDev -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CDev Source # pokeByteOff :: Ptr b -> Int -> CDev -> IO () Source # peek :: Ptr CDev -> IO CDev Source # poke :: Ptr CDev -> CDev -> IO () Source #
Storable CFsBlkCnt Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CFsBlkCnt -> Int Source # alignment :: CFsBlkCnt -> Int Source # peekElemOff :: Ptr CFsBlkCnt -> Int -> IO CFsBlkCnt Source # pokeElemOff :: Ptr CFsBlkCnt -> Int -> CFsBlkCnt -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CFsBlkCnt Source # pokeByteOff :: Ptr b -> Int -> CFsBlkCnt -> IO () Source # peek :: Ptr CFsBlkCnt -> IO CFsBlkCnt Source # poke :: Ptr CFsBlkCnt -> CFsBlkCnt -> IO () Source #
Storable CFsFilCnt Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CFsFilCnt -> Int Source # alignment :: CFsFilCnt -> Int Source # peekElemOff :: Ptr CFsFilCnt -> Int -> IO CFsFilCnt Source # pokeElemOff :: Ptr CFsFilCnt -> Int -> CFsFilCnt -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CFsFilCnt Source # pokeByteOff :: Ptr b -> Int -> CFsFilCnt -> IO () Source # peek :: Ptr CFsFilCnt -> IO CFsFilCnt Source # poke :: Ptr CFsFilCnt -> CFsFilCnt -> IO () Source #
Storable CGid Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CGid -> Int Source # alignment :: CGid -> Int Source # peekElemOff :: Ptr CGid -> Int -> IO CGid Source # pokeElemOff :: Ptr CGid -> Int -> CGid -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CGid Source # pokeByteOff :: Ptr b -> Int -> CGid -> IO () Source # peek :: Ptr CGid -> IO CGid Source # poke :: Ptr CGid -> CGid -> IO () Source #
Storable CId Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CId -> Int Source # alignment :: CId -> Int Source # peekElemOff :: Ptr CId -> Int -> IO CId Source # pokeElemOff :: Ptr CId -> Int -> CId -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CId Source # pokeByteOff :: Ptr b -> Int -> CId -> IO () Source # peek :: Ptr CId -> IO CId Source # poke :: Ptr CId -> CId -> IO () Source #
Storable CIno Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CIno -> Int Source # alignment :: CIno -> Int Source # peekElemOff :: Ptr CIno -> Int -> IO CIno Source # pokeElemOff :: Ptr CIno -> Int -> CIno -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CIno Source # pokeByteOff :: Ptr b -> Int -> CIno -> IO () Source # peek :: Ptr CIno -> IO CIno Source # poke :: Ptr CIno -> CIno -> IO () Source #
Storable CKey Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CKey -> Int Source # alignment :: CKey -> Int Source # peekElemOff :: Ptr CKey -> Int -> IO CKey Source # pokeElemOff :: Ptr CKey -> Int -> CKey -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CKey Source # pokeByteOff :: Ptr b -> Int -> CKey -> IO () Source # peek :: Ptr CKey -> IO CKey Source # poke :: Ptr CKey -> CKey -> IO () Source #
Storable CMode Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CMode -> Int Source # alignment :: CMode -> Int Source # peekElemOff :: Ptr CMode -> Int -> IO CMode Source # pokeElemOff :: Ptr CMode -> Int -> CMode -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CMode Source # pokeByteOff :: Ptr b -> Int -> CMode -> IO () Source # peek :: Ptr CMode -> IO CMode Source # poke :: Ptr CMode -> CMode -> IO () Source #
Storable CNfds Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CNfds -> Int Source # alignment :: CNfds -> Int Source # peekElemOff :: Ptr CNfds -> Int -> IO CNfds Source # pokeElemOff :: Ptr CNfds -> Int -> CNfds -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CNfds Source # pokeByteOff :: Ptr b -> Int -> CNfds -> IO () Source # peek :: Ptr CNfds -> IO CNfds Source # poke :: Ptr CNfds -> CNfds -> IO () Source #
Storable CNlink Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CNlink -> Int Source # alignment :: CNlink -> Int Source # peekElemOff :: Ptr CNlink -> Int -> IO CNlink Source # pokeElemOff :: Ptr CNlink -> Int -> CNlink -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CNlink Source # pokeByteOff :: Ptr b -> Int -> CNlink -> IO () Source # peek :: Ptr CNlink -> IO CNlink Source # poke :: Ptr CNlink -> CNlink -> IO () Source #
Storable COff Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: COff -> Int Source # alignment :: COff -> Int Source # peekElemOff :: Ptr COff -> Int -> IO COff Source # pokeElemOff :: Ptr COff -> Int -> COff -> IO () Source # peekByteOff :: Ptr b -> Int -> IO COff Source # pokeByteOff :: Ptr b -> Int -> COff -> IO () Source # peek :: Ptr COff -> IO COff Source # poke :: Ptr COff -> COff -> IO () Source #
Storable CPid Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CPid -> Int Source # alignment :: CPid -> Int Source # peekElemOff :: Ptr CPid -> Int -> IO CPid Source # pokeElemOff :: Ptr CPid -> Int -> CPid -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CPid Source # pokeByteOff :: Ptr b -> Int -> CPid -> IO () Source # peek :: Ptr CPid -> IO CPid Source # poke :: Ptr CPid -> CPid -> IO () Source #
Storable CRLim Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CRLim -> Int Source # alignment :: CRLim -> Int Source # peekElemOff :: Ptr CRLim -> Int -> IO CRLim Source # pokeElemOff :: Ptr CRLim -> Int -> CRLim -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CRLim Source # pokeByteOff :: Ptr b -> Int -> CRLim -> IO () Source # peek :: Ptr CRLim -> IO CRLim Source # poke :: Ptr CRLim -> CRLim -> IO () Source #
Storable CSocklen Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CSocklen -> Int Source # alignment :: CSocklen -> Int Source # peekElemOff :: Ptr CSocklen -> Int -> IO CSocklen Source # pokeElemOff :: Ptr CSocklen -> Int -> CSocklen -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSocklen Source # pokeByteOff :: Ptr b -> Int -> CSocklen -> IO () Source # peek :: Ptr CSocklen -> IO CSocklen Source # poke :: Ptr CSocklen -> CSocklen -> IO () Source #
Storable CSpeed Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CSpeed -> Int Source # alignment :: CSpeed -> Int Source # peekElemOff :: Ptr CSpeed -> Int -> IO CSpeed Source # pokeElemOff :: Ptr CSpeed -> Int -> CSpeed -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSpeed Source # pokeByteOff :: Ptr b -> Int -> CSpeed -> IO () Source # peek :: Ptr CSpeed -> IO CSpeed Source # poke :: Ptr CSpeed -> CSpeed -> IO () Source #
Storable CSsize Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CSsize -> Int Source # alignment :: CSsize -> Int Source # peekElemOff :: Ptr CSsize -> Int -> IO CSsize Source # pokeElemOff :: Ptr CSsize -> Int -> CSsize -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CSsize Source # pokeByteOff :: Ptr b -> Int -> CSsize -> IO () Source # peek :: Ptr CSsize -> IO CSsize Source # poke :: Ptr CSsize -> CSsize -> IO () Source #
Storable CTcflag Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CTcflag -> Int Source # alignment :: CTcflag -> Int Source # peekElemOff :: Ptr CTcflag -> Int -> IO CTcflag Source # pokeElemOff :: Ptr CTcflag -> Int -> CTcflag -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CTcflag Source # pokeByteOff :: Ptr b -> Int -> CTcflag -> IO () Source # peek :: Ptr CTcflag -> IO CTcflag Source # poke :: Ptr CTcflag -> CTcflag -> IO () Source #
Storable CTimer Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CTimer -> Int Source # alignment :: CTimer -> Int Source # peekElemOff :: Ptr CTimer -> Int -> IO CTimer Source # pokeElemOff :: Ptr CTimer -> Int -> CTimer -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CTimer Source # pokeByteOff :: Ptr b -> Int -> CTimer -> IO () Source # peek :: Ptr CTimer -> IO CTimer Source # poke :: Ptr CTimer -> CTimer -> IO () Source #
Storable CUid Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: CUid -> Int Source # alignment :: CUid -> Int Source # peekElemOff :: Ptr CUid -> Int -> IO CUid Source # pokeElemOff :: Ptr CUid -> Int -> CUid -> IO () Source # peekByteOff :: Ptr b -> Int -> IO CUid Source # pokeByteOff :: Ptr b -> Int -> CUid -> IO () Source # peek :: Ptr CUid -> IO CUid Source # poke :: Ptr CUid -> CUid -> IO () Source #
Storable Fd Source #
Instance details Defined in GHC.Internal.System.Posix.Types Methods sizeOf :: Fd -> Int Source # alignment :: Fd -> Int Source # peekElemOff :: Ptr Fd -> Int -> IO Fd Source # pokeElemOff :: Ptr Fd -> Int -> Fd -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Fd Source # pokeByteOff :: Ptr b -> Int -> Fd -> IO () Source # peek :: Ptr Fd -> IO Fd Source # poke :: Ptr Fd -> Fd -> IO () Source #
Storable Word16 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Word16 -> Int Source # alignment :: Word16 -> Int Source # peekElemOff :: Ptr Word16 -> Int -> IO Word16 Source # pokeElemOff :: Ptr Word16 -> Int -> Word16 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Word16 Source # pokeByteOff :: Ptr b -> Int -> Word16 -> IO () Source # peek :: Ptr Word16 -> IO Word16 Source # poke :: Ptr Word16 -> Word16 -> IO () Source #
Storable Word32 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Word32 -> Int Source # alignment :: Word32 -> Int Source # peekElemOff :: Ptr Word32 -> Int -> IO Word32 Source # pokeElemOff :: Ptr Word32 -> Int -> Word32 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Word32 Source # pokeByteOff :: Ptr b -> Int -> Word32 -> IO () Source # peek :: Ptr Word32 -> IO Word32 Source # poke :: Ptr Word32 -> Word32 -> IO () Source #
Storable Word64 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Word64 -> Int Source # alignment :: Word64 -> Int Source # peekElemOff :: Ptr Word64 -> Int -> IO Word64 Source # pokeElemOff :: Ptr Word64 -> Int -> Word64 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Word64 Source # pokeByteOff :: Ptr b -> Int -> Word64 -> IO () Source # peek :: Ptr Word64 -> IO Word64 Source # poke :: Ptr Word64 -> Word64 -> IO () Source #
Storable Word8 Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Word8 -> Int Source # alignment :: Word8 -> Int Source # peekElemOff :: Ptr Word8 -> Int -> IO Word8 Source # pokeElemOff :: Ptr Word8 -> Int -> Word8 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Word8 Source # pokeByteOff :: Ptr b -> Int -> Word8 -> IO () Source # peek :: Ptr Word8 -> IO Word8 Source # poke :: Ptr Word8 -> Word8 -> IO () Source #
Storable () Source #	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: () -> Int Source # alignment :: () -> Int Source # peekElemOff :: Ptr () -> Int -> IO () Source # pokeElemOff :: Ptr () -> Int -> () -> IO () Source # peekByteOff :: Ptr b -> Int -> IO () Source # pokeByteOff :: Ptr b -> Int -> () -> IO () Source # peek :: Ptr () -> IO () Source # poke :: Ptr () -> () -> IO () Source #
Storable Bool Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Bool -> Int Source # alignment :: Bool -> Int Source # peekElemOff :: Ptr Bool -> Int -> IO Bool Source # pokeElemOff :: Ptr Bool -> Int -> Bool -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Bool Source # pokeByteOff :: Ptr b -> Int -> Bool -> IO () Source # peek :: Ptr Bool -> IO Bool Source # poke :: Ptr Bool -> Bool -> IO () Source #
Storable Char Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Char -> Int Source # alignment :: Char -> Int Source # peekElemOff :: Ptr Char -> Int -> IO Char Source # pokeElemOff :: Ptr Char -> Int -> Char -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Char Source # pokeByteOff :: Ptr b -> Int -> Char -> IO () Source # peek :: Ptr Char -> IO Char Source # poke :: Ptr Char -> Char -> IO () Source #
Storable Double Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Double -> Int Source # alignment :: Double -> Int Source # peekElemOff :: Ptr Double -> Int -> IO Double Source # pokeElemOff :: Ptr Double -> Int -> Double -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Double Source # pokeByteOff :: Ptr b -> Int -> Double -> IO () Source # peek :: Ptr Double -> IO Double Source # poke :: Ptr Double -> Double -> IO () Source #
Storable Float Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Float -> Int Source # alignment :: Float -> Int Source # peekElemOff :: Ptr Float -> Int -> IO Float Source # pokeElemOff :: Ptr Float -> Int -> Float -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Float Source # pokeByteOff :: Ptr b -> Int -> Float -> IO () Source # peek :: Ptr Float -> IO Float Source # poke :: Ptr Float -> Float -> IO () Source #
Storable Int Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Int -> Int Source # alignment :: Int -> Int Source # peekElemOff :: Ptr Int -> Int -> IO Int Source # pokeElemOff :: Ptr Int -> Int -> Int -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Int Source # pokeByteOff :: Ptr b -> Int -> Int -> IO () Source # peek :: Ptr Int -> IO Int Source # poke :: Ptr Int -> Int -> IO () Source #
Storable Word Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Word -> Int Source # alignment :: Word -> Int Source # peekElemOff :: Ptr Word -> Int -> IO Word Source # pokeElemOff :: Ptr Word -> Int -> Word -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Word Source # pokeByteOff :: Ptr b -> Int -> Word -> IO () Source # peek :: Ptr Word -> IO Word Source # poke :: Ptr Word -> Word -> IO () Source #
Storable a => Storable (Complex a) Source #	Since: base-4.8.0.0
Instance details Defined in Data.Complex Methods sizeOf :: Complex a -> Int Source # alignment :: Complex a -> Int Source # peekElemOff :: Ptr (Complex a) -> Int -> IO (Complex a) Source # pokeElemOff :: Ptr (Complex a) -> Int -> Complex a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (Complex a) Source # pokeByteOff :: Ptr b -> Int -> Complex a -> IO () Source # peek :: Ptr (Complex a) -> IO (Complex a) Source # poke :: Ptr (Complex a) -> Complex a -> IO () Source #
Storable a => Storable (Identity a) Source #	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Data.Functor.Identity Methods sizeOf :: Identity a -> Int Source # alignment :: Identity a -> Int Source # peekElemOff :: Ptr (Identity a) -> Int -> IO (Identity a) Source # pokeElemOff :: Ptr (Identity a) -> Int -> Identity a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (Identity a) Source # pokeByteOff :: Ptr b -> Int -> Identity a -> IO () Source # peek :: Ptr (Identity a) -> IO (Identity a) Source # poke :: Ptr (Identity a) -> Identity a -> IO () Source #
Storable a => Storable (Down a) Source #	Since: base-4.14.0.0
Instance details Defined in GHC.Internal.Data.Ord Methods sizeOf :: Down a -> Int Source # alignment :: Down a -> Int Source # peekElemOff :: Ptr (Down a) -> Int -> IO (Down a) Source # pokeElemOff :: Ptr (Down a) -> Int -> Down a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (Down a) Source # pokeByteOff :: Ptr b -> Int -> Down a -> IO () Source # peek :: Ptr (Down a) -> IO (Down a) Source # poke :: Ptr (Down a) -> Down a -> IO () Source #
Storable (ConstPtr a) Source #
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: ConstPtr a -> Int Source # alignment :: ConstPtr a -> Int Source # peekElemOff :: Ptr (ConstPtr a) -> Int -> IO (ConstPtr a) Source # pokeElemOff :: Ptr (ConstPtr a) -> Int -> ConstPtr a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (ConstPtr a) Source # pokeByteOff :: Ptr b -> Int -> ConstPtr a -> IO () Source # peek :: Ptr (ConstPtr a) -> IO (ConstPtr a) Source # poke :: Ptr (ConstPtr a) -> ConstPtr a -> IO () Source #
Storable (FunPtr a) Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: FunPtr a -> Int Source # alignment :: FunPtr a -> Int Source # peekElemOff :: Ptr (FunPtr a) -> Int -> IO (FunPtr a) Source # pokeElemOff :: Ptr (FunPtr a) -> Int -> FunPtr a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (FunPtr a) Source # pokeByteOff :: Ptr b -> Int -> FunPtr a -> IO () Source # peek :: Ptr (FunPtr a) -> IO (FunPtr a) Source # poke :: Ptr (FunPtr a) -> FunPtr a -> IO () Source #
Storable (Ptr a) Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Ptr a -> Int Source # alignment :: Ptr a -> Int Source # peekElemOff :: Ptr (Ptr a) -> Int -> IO (Ptr a) Source # pokeElemOff :: Ptr (Ptr a) -> Int -> Ptr a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (Ptr a) Source # pokeByteOff :: Ptr b -> Int -> Ptr a -> IO () Source # peek :: Ptr (Ptr a) -> IO (Ptr a) Source # poke :: Ptr (Ptr a) -> Ptr a -> IO () Source #
(Storable a, Integral a) => Storable (Ratio a) Source #	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Ratio a -> Int Source # alignment :: Ratio a -> Int Source # peekElemOff :: Ptr (Ratio a) -> Int -> IO (Ratio a) Source # pokeElemOff :: Ptr (Ratio a) -> Int -> Ratio a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (Ratio a) Source # pokeByteOff :: Ptr b -> Int -> Ratio a -> IO () Source # peek :: Ptr (Ratio a) -> IO (Ratio a) Source # poke :: Ptr (Ratio a) -> Ratio a -> IO () Source #
Storable (StablePtr a) Source #	Since: base-2.1
Instance details Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: StablePtr a -> Int Source # alignment :: StablePtr a -> Int Source # peekElemOff :: Ptr (StablePtr a) -> Int -> IO (StablePtr a) Source # pokeElemOff :: Ptr (StablePtr a) -> Int -> StablePtr a -> IO () Source # peekByteOff :: Ptr b -> Int -> IO (StablePtr a) Source # pokeByteOff :: Ptr b -> Int -> StablePtr a -> IO () Source # peek :: Ptr (StablePtr a) -> IO (StablePtr a) Source # poke :: Ptr (StablePtr a) -> StablePtr a -> IO () Source #
Storable a => Storable (Const a b) Source #	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Data.Functor.Const Methods sizeOf :: Const a b -> Int Source # alignment :: Const a b -> Int Source # peekElemOff :: Ptr (Const a b) -> Int -> IO (Const a b) Source # pokeElemOff :: Ptr (Const a b) -> Int -> Const a b -> IO () Source # peekByteOff :: Ptr b0 -> Int -> IO (Const a b) Source # pokeByteOff :: Ptr b0 -> Int -> Const a b -> IO () Source # peek :: Ptr (Const a b) -> IO (Const a b) Source # poke :: Ptr (Const a b) -> Const a b -> IO () Source #