base-4.10.1.0: Basic libraries

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

# Documentation

class Storable a where #

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

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

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

Minimal complete definition

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

Methods

sizeOf :: a -> Int #

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

alignment :: a -> Int #

Computes the alignment constraint of the argument. An alignment constraint `x` is fulfilled by any address divisible by `x`. The value of the argument is not used.

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

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 () #

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 #

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 () #

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 #

Read a value from the given memory location.

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

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

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

Instances

Storable Bool # | Since: 2.1
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: 2.1
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: 2.1
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: 2.1
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: 2.1
Methods sizeOf :: Int -> Int # alignment :: Int -> Int # peekElemOff :: Ptr Int -> Int -> IO Int # pokeElemOff :: Ptr Int -> Int -> Int -> IO () # peekByteOff :: Ptr b -> Int -> IO Int # pokeByteOff :: Ptr b -> Int -> Int -> IO () # peek :: Ptr Int -> IO Int # poke :: Ptr Int -> Int -> IO () #
Storable Int8 # | Since: 2.1
Methods sizeOf :: Int8 -> Int # alignment :: Int8 -> Int # peekElemOff :: Ptr Int8 -> Int -> IO Int8 # pokeElemOff :: Ptr Int8 -> Int -> Int8 -> IO () # peekByteOff :: Ptr b -> Int -> IO Int8 # pokeByteOff :: Ptr b -> Int -> Int8 -> IO () # peek :: Ptr Int8 -> IO Int8 # poke :: Ptr Int8 -> Int8 -> IO () #
Storable Int16 # | Since: 2.1
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: 2.1
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: 2.1
Methods sizeOf :: Int64 -> Int # alignment :: Int64 -> Int # peekElemOff :: Ptr Int64 -> Int -> IO Int64 # pokeElemOff :: Ptr Int64 -> Int -> Int64 -> IO () # peekByteOff :: Ptr b -> Int -> IO Int64 # pokeByteOff :: Ptr b -> Int -> Int64 -> IO () # peek :: Ptr Int64 -> IO Int64 # poke :: Ptr Int64 -> Int64 -> IO () #
Storable Word # | Since: 2.1
Methods sizeOf :: Word -> Int # alignment :: Word -> Int # peekElemOff :: Ptr Word -> Int -> IO Word # pokeElemOff :: Ptr Word -> Int -> Word -> IO () # peekByteOff :: Ptr b -> Int -> IO Word # pokeByteOff :: Ptr b -> Int -> Word -> IO () # peek :: Ptr Word -> IO Word # poke :: Ptr Word -> Word -> IO () #
Storable Word8 # | Since: 2.1
Methods sizeOf :: Word8 -> Int # alignment :: Word8 -> Int # peekElemOff :: Ptr Word8 -> Int -> IO Word8 # pokeElemOff :: Ptr Word8 -> Int -> Word8 -> IO () # peekByteOff :: Ptr b -> Int -> IO Word8 # pokeByteOff :: Ptr b -> Int -> Word8 -> IO () # peek :: Ptr Word8 -> IO Word8 # poke :: Ptr Word8 -> Word8 -> IO () #
Storable Word16 # | Since: 2.1
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: 2.1
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: 2.1
Methods sizeOf :: Word64 -> Int # alignment :: Word64 -> Int # peekElemOff :: Ptr Word64 -> Int -> IO Word64 # pokeElemOff :: Ptr Word64 -> Int -> Word64 -> IO () # peekByteOff :: Ptr b -> Int -> IO Word64 # pokeByteOff :: Ptr b -> Int -> Word64 -> IO () # peek :: Ptr Word64 -> IO Word64 # poke :: Ptr Word64 -> Word64 -> IO () #
Storable () # | Since: 4.9.0.0
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 Fingerprint # | Since: 4.4.0.0
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 IntPtr # |
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 # |
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 CUIntMax # |
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 CIntMax # |
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 CUIntPtr # |
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 CIntPtr # |
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 CSUSeconds # |
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 CUSeconds # |
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 CTime # |
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 CClock # |
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 CSigAtomic # |
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 CWchar # |
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 CSize # |
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 CPtrdiff # |
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 CDouble # |
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 # |
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 CBool # |
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 CULLong # |
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 CLLong # |
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 CULong # |
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 CLong # |
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 CUInt # |
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 CInt # |
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 CUShort # |
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 CShort # |
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 CUChar # |
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 CSChar # |
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 CChar # |
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 Fd # |
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 CTimer # |
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 CKey # |
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 CId # |
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 CFsFilCnt # |
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 CFsBlkCnt # |
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 CClockId # |
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 CBlkCnt # |
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 # |
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 CRLim # |
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 CTcflag # |
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 CSpeed # |
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 CCc # |
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 CUid # |
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 CNlink # |
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 CGid # |
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 CSsize # |
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 CPid # |
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 COff # |
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 CMode # |
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 CIno # |
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 CDev # |
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 a, Integral a) => Storable (Ratio a) # | Since: 4.8.0.0
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: 2.1

Methods

sizeOf :: StablePtr a -> Int #

alignment :: StablePtr a -> Int #

peekElemOff :: Ptr (StablePtr a) -> Int -> IO (StablePtr a) #

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

peekByteOff :: Ptr b -> Int -> IO (StablePtr a) #

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

peek :: Ptr (StablePtr a) -> IO (StablePtr a) #

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

Storable (Ptr a) # | Since: 2.1
Methods sizeOf :: Ptr a -> Int # alignment :: Ptr a -> Int # peekElemOff :: Ptr (Ptr a) -> Int -> IO (Ptr a) # pokeElemOff :: Ptr (Ptr a) -> Int -> Ptr a -> IO () # peekByteOff :: Ptr b -> Int -> IO (Ptr a) # pokeByteOff :: Ptr b -> Int -> Ptr a -> IO () # peek :: Ptr (Ptr a) -> IO (Ptr a) # poke :: Ptr (Ptr a) -> Ptr a -> IO () #
Storable (FunPtr a) # | Since: 2.1
Methods sizeOf :: FunPtr a -> Int # alignment :: FunPtr a -> Int # peekElemOff :: Ptr (FunPtr a) -> Int -> IO (FunPtr a) # pokeElemOff :: Ptr (FunPtr a) -> Int -> FunPtr a -> IO () # peekByteOff :: Ptr b -> Int -> IO (FunPtr a) # pokeByteOff :: Ptr b -> Int -> FunPtr a -> IO () # peek :: Ptr (FunPtr a) -> IO (FunPtr a) # poke :: Ptr (FunPtr a) -> FunPtr a -> IO () #
Storable a => Storable (Identity a) # |
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 (Complex a) # | Since: 4.8.0.0
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 (Const k a b) # |

Methods

sizeOf :: Const k a b -> Int #

alignment :: Const k a b -> Int #

peekElemOff :: Ptr (Const k a b) -> Int -> IO (Const k a b) #

pokeElemOff :: Ptr (Const k a b) -> Int -> Const k a b -> IO () #

peekByteOff :: Ptr b -> Int -> IO (Const k a b) #

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

peek :: Ptr (Const k a b) -> IO (Const k a b) #

poke :: Ptr (Const k a b) -> Const k a b -> IO () #