Foreign.Storable

base-4.20.0.0: Core data structures and operations

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 | @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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 Int16 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 IoSubSystem | @since base-4.9.0.0
Instance details Defined in GHC.Internal.RTS.Flags Methods sizeOf :: IoSubSystem -> Int Source # alignment :: IoSubSystem -> Int Source # peekElemOff :: Ptr IoSubSystem -> Int -> IO IoSubSystem Source # pokeElemOff :: Ptr IoSubSystem -> Int -> IoSubSystem -> IO () Source # peekByteOff :: Ptr b -> Int -> IO IoSubSystem Source # pokeByteOff :: Ptr b -> Int -> IoSubSystem -> IO () Source # peek :: Ptr IoSubSystem -> IO IoSubSystem Source # poke :: Ptr IoSubSystem -> IoSubSystem -> IO () Source #
Storable CBlkCnt |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 () | @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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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 | @since base-2.01
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) | @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) | @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) |
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) | @since base-2.01
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) | @since base-2.01
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) | @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) | @since base-2.01
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) | @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 #