planet-mitchell-0.1.0: Planet Mitchell

Safe HaskellSafe
LanguageHaskell2010

Storable

Synopsis

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: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Bool -> Int #

alignment :: Bool -> Int #

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

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

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

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

peek :: Ptr Bool -> IO Bool #

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

Storable Char

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Char -> Int #

alignment :: Char -> Int #

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

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

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

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

peek :: Ptr Char -> IO Char #

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

Storable Double

Since: base-2.1

Instance details

Defined in Foreign.Storable

Storable Float

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Float -> Int #

alignment :: Float -> Int #

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

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

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

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

peek :: Ptr Float -> IO Float #

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

Storable Int

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Int -> Int #

alignment :: Int -> Int #

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

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

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

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

peek :: Ptr Int -> IO Int #

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

Storable Int8

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Int8 -> Int #

alignment :: Int8 -> Int #

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

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

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

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

peek :: Ptr Int8 -> IO Int8 #

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

Storable Int16

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Int16 -> Int #

alignment :: Int16 -> Int #

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

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

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

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

peek :: Ptr Int16 -> IO Int16 #

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

Storable Int32

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Int32 -> Int #

alignment :: Int32 -> Int #

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

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

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

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

peek :: Ptr Int32 -> IO Int32 #

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

Storable Int64

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Int64 -> Int #

alignment :: Int64 -> Int #

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

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

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

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

peek :: Ptr Int64 -> IO Int64 #

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

Storable Word

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Word -> Int #

alignment :: Word -> Int #

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

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

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

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

peek :: Ptr Word -> IO Word #

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

Storable Word8

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Word8 -> Int #

alignment :: Word8 -> Int #

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

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

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

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

peek :: Ptr Word8 -> IO Word8 #

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

Storable Word16

Since: base-2.1

Instance details

Defined in Foreign.Storable

Storable Word32

Since: base-2.1

Instance details

Defined in Foreign.Storable

Storable Word64

Since: base-2.1

Instance details

Defined in Foreign.Storable

Storable ()

Since: base-4.9.0.0

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: () -> Int #

alignment :: () -> Int #

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

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

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

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

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

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

Storable CDev 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CDev -> Int #

alignment :: CDev -> Int #

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

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

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

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

peek :: Ptr CDev -> IO CDev #

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

Storable CIno 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CIno -> Int #

alignment :: CIno -> Int #

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

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

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

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

peek :: Ptr CIno -> IO CIno #

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

Storable CMode 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CMode -> Int #

alignment :: CMode -> Int #

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

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

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

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

peek :: Ptr CMode -> IO CMode #

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

Storable COff 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: COff -> Int #

alignment :: COff -> Int #

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

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

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

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

peek :: Ptr COff -> IO COff #

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

Storable CPid 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CPid -> Int #

alignment :: CPid -> Int #

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

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

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

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

peek :: Ptr CPid -> IO CPid #

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

Storable CSsize 
Instance details

Defined in System.Posix.Types

Storable CGid 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CGid -> Int #

alignment :: CGid -> Int #

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

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

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

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

peek :: Ptr CGid -> IO CGid #

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

Storable CNlink 
Instance details

Defined in System.Posix.Types

Storable CUid 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CUid -> Int #

alignment :: CUid -> Int #

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

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

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

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

peek :: Ptr CUid -> IO CUid #

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

Storable CCc 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CCc -> Int #

alignment :: CCc -> Int #

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

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

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

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

peek :: Ptr CCc -> IO CCc #

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

Storable CSpeed 
Instance details

Defined in System.Posix.Types

Storable CTcflag 
Instance details

Defined in System.Posix.Types

Storable CRLim 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CRLim -> Int #

alignment :: CRLim -> Int #

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

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

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

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

peek :: Ptr CRLim -> IO CRLim #

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

Storable CBlkSize 
Instance details

Defined in System.Posix.Types

Storable CBlkCnt 
Instance details

Defined in System.Posix.Types

Storable CClockId 
Instance details

Defined in System.Posix.Types

Storable CFsBlkCnt 
Instance details

Defined in System.Posix.Types

Storable CFsFilCnt 
Instance details

Defined in System.Posix.Types

Storable CId 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CId -> Int #

alignment :: CId -> Int #

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

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

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

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

peek :: Ptr CId -> IO CId #

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

Storable CKey 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: CKey -> Int #

alignment :: CKey -> Int #

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

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

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

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

peek :: Ptr CKey -> IO CKey #

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

Storable CTimer 
Instance details

Defined in System.Posix.Types

Storable Fd 
Instance details

Defined in System.Posix.Types

Methods

sizeOf :: Fd -> Int #

alignment :: Fd -> Int #

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

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

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

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

peek :: Ptr Fd -> IO Fd #

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

Storable CChar 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CChar -> Int #

alignment :: CChar -> Int #

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

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

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

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

peek :: Ptr CChar -> IO CChar #

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

Storable CSChar 
Instance details

Defined in Foreign.C.Types

Storable CUChar 
Instance details

Defined in Foreign.C.Types

Storable CShort 
Instance details

Defined in Foreign.C.Types

Storable CUShort 
Instance details

Defined in Foreign.C.Types

Storable CInt 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CInt -> Int #

alignment :: CInt -> Int #

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

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

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

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

peek :: Ptr CInt -> IO CInt #

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

Storable CUInt 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CUInt -> Int #

alignment :: CUInt -> Int #

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

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

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

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

peek :: Ptr CUInt -> IO CUInt #

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

Storable CLong 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CLong -> Int #

alignment :: CLong -> Int #

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

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

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

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

peek :: Ptr CLong -> IO CLong #

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

Storable CULong 
Instance details

Defined in Foreign.C.Types

Storable CLLong 
Instance details

Defined in Foreign.C.Types

Storable CULLong 
Instance details

Defined in Foreign.C.Types

Storable CBool 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CBool -> Int #

alignment :: CBool -> Int #

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

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

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

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

peek :: Ptr CBool -> IO CBool #

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

Storable CFloat 
Instance details

Defined in Foreign.C.Types

Storable CDouble 
Instance details

Defined in Foreign.C.Types

Storable CPtrdiff 
Instance details

Defined in Foreign.C.Types

Storable CSize 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CSize -> Int #

alignment :: CSize -> Int #

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

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

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

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

peek :: Ptr CSize -> IO CSize #

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

Storable CWchar 
Instance details

Defined in Foreign.C.Types

Storable CSigAtomic 
Instance details

Defined in Foreign.C.Types

Storable CClock 
Instance details

Defined in Foreign.C.Types

Storable CTime 
Instance details

Defined in Foreign.C.Types

Methods

sizeOf :: CTime -> Int #

alignment :: CTime -> Int #

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

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

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

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

peek :: Ptr CTime -> IO CTime #

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

Storable CUSeconds 
Instance details

Defined in Foreign.C.Types

Storable CSUSeconds 
Instance details

Defined in Foreign.C.Types

Storable CIntPtr 
Instance details

Defined in Foreign.C.Types

Storable CUIntPtr 
Instance details

Defined in Foreign.C.Types

Storable CIntMax 
Instance details

Defined in Foreign.C.Types

Storable CUIntMax 
Instance details

Defined in Foreign.C.Types

Storable WordPtr 
Instance details

Defined in Foreign.Ptr

Storable IntPtr 
Instance details

Defined in Foreign.Ptr

Storable Fingerprint

Since: base-4.4.0.0

Instance details

Defined in Foreign.Storable

Storable Half 
Instance details

Defined in Numeric.Half

Methods

sizeOf :: Half -> Int #

alignment :: Half -> Int #

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

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

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

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

peek :: Ptr Half -> IO Half #

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

Storable In6Addr 
Instance details

Defined in Network.Socket.Types

Methods

sizeOf :: In6Addr -> Int #

alignment :: In6Addr -> Int #

peekElemOff :: Ptr In6Addr -> Int -> IO In6Addr #

pokeElemOff :: Ptr In6Addr -> Int -> In6Addr -> IO () #

peekByteOff :: Ptr b -> Int -> IO In6Addr #

pokeByteOff :: Ptr b -> Int -> In6Addr -> IO () #

peek :: Ptr In6Addr -> IO In6Addr #

poke :: Ptr In6Addr -> In6Addr -> IO () #

Storable AddrInfo 
Instance details

Defined in Network.Socket

Storable PortNumber 
Instance details

Defined in Network.Socket.Types

Storable NetworkInterface 
Instance details

Defined in Network.Info

Storable IPv4 
Instance details

Defined in Network.Info

Methods

sizeOf :: IPv4 -> Int #

alignment :: IPv4 -> Int #

peekElemOff :: Ptr IPv4 -> Int -> IO IPv4 #

pokeElemOff :: Ptr IPv4 -> Int -> IPv4 -> IO () #

peekByteOff :: Ptr b -> Int -> IO IPv4 #

pokeByteOff :: Ptr b -> Int -> IPv4 -> IO () #

peek :: Ptr IPv4 -> IO IPv4 #

poke :: Ptr IPv4 -> IPv4 -> IO () #

Storable IPv6 
Instance details

Defined in Network.Info

Methods

sizeOf :: IPv6 -> Int #

alignment :: IPv6 -> Int #

peekElemOff :: Ptr IPv6 -> Int -> IO IPv6 #

pokeElemOff :: Ptr IPv6 -> Int -> IPv6 -> IO () #

peekByteOff :: Ptr b -> Int -> IO IPv6 #

pokeByteOff :: Ptr b -> Int -> IPv6 -> IO () #

peek :: Ptr IPv6 -> IO IPv6 #

poke :: Ptr IPv6 -> IPv6 -> IO () #

Storable MAC 
Instance details

Defined in Network.Info

Methods

sizeOf :: MAC -> Int #

alignment :: MAC -> Int #

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

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

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

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

peek :: Ptr MAC -> IO MAC #

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

Storable UUID 
Instance details

Defined in Data.UUID.Types.Internal

Methods

sizeOf :: UUID -> Int #

alignment :: UUID -> Int #

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

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

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

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

peek :: Ptr UUID -> IO UUID #

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

Storable CodePoint 
Instance details

Defined in Data.Text.Encoding

Methods

sizeOf :: CodePoint -> Int #

alignment :: CodePoint -> Int #

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

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

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

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

peek :: Ptr CodePoint -> IO CodePoint #

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

Storable DecoderState 
Instance details

Defined in Data.Text.Encoding

Methods

sizeOf :: DecoderState -> Int #

alignment :: DecoderState -> Int #

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

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

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

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

peek :: Ptr DecoderState -> IO DecoderState #

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

(Storable a, Integral a) => Storable (Ratio a)

Since: base-4.8.0.0

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Ratio a -> Int #

alignment :: Ratio a -> Int #

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

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

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

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

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

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

Storable (StablePtr a)

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: StablePtr a -> Int #

alignment :: StablePtr a -> Int #

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

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

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

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

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

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

Storable (Ptr a)

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Ptr a -> Int #

alignment :: Ptr a -> Int #

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

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

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

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

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

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

Storable (FunPtr a)

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: FunPtr a -> Int #

alignment :: FunPtr a -> Int #

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

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

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

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

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

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

Storable a => Storable (Complex a)

Since: base-4.8.0.0

Instance details

Defined in Data.Complex

Methods

sizeOf :: Complex a -> Int #

alignment :: Complex a -> Int #

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

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

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

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

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

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

Storable a => Storable (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

sizeOf :: Identity a -> Int #

alignment :: Identity a -> Int #

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

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

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

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

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

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

Storable a => Storable (Log a) 
Instance details

Defined in Numeric.Log

Methods

sizeOf :: Log a -> Int #

alignment :: Log a -> Int #

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

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

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

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

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

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

Prim a => Storable (PrimStorable a) 
Instance details

Defined in Data.Primitive.Types

Storable a => Storable (Const a b) 
Instance details

Defined in Data.Functor.Const

Methods

sizeOf :: Const a b -> Int #

alignment :: Const a b -> Int #

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

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

peekByteOff :: Ptr b0 -> Int -> IO (Const a b) #

pokeByteOff :: Ptr b0 -> Int -> Const a b -> IO () #

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

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

Storable a => Storable (Tagged s a) 
Instance details

Defined in Data.Tagged

Methods

sizeOf :: Tagged s a -> Int #

alignment :: Tagged s a -> Int #

peekElemOff :: Ptr (Tagged s a) -> Int -> IO (Tagged s a) #

pokeElemOff :: Ptr (Tagged s a) -> Int -> Tagged s a -> IO () #

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

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

peek :: Ptr (Tagged s a) -> IO (Tagged s a) #

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