Modulebinary-0.8.9.3Haskell2010

Data.Binary

Binary serialisation of Haskell values to and from lazy ByteStrings. The Binary library provides methods for encoding Haskell values as streams of bytes directly in memory. The resulting ByteString can then be written to disk, sent over the network, or further processed (for example, compressed with gzip).

The binary package is notable in that it provides both pure, and high performance serialisation.

Values encoded using the Binary class are always encoded in network order (big endian) form, and encoded data should be portable across machine endianness, word size, or compiler version. For example, data encoded using the Binary class could be written on any machine, and read back on any another.

If the specifics of the data format is not important to you, for example, you are more interested in serializing and deserializing values than in which format will be used, it is possible to derive Binary instances using the generic support. See GBinaryGet and GBinaryPut.

If you have specific requirements about the encoding format, you can use the encoding and decoding primitives directly, see the modules Data.Binary.Get and Data.Binary.Put.

7 types
3 classes
15 values

Packagebinary-0.8.9.3
Exports25
LanguageHaskell2010
LicenceBSD-3-Clause
SourceBinary.hs

The Binary class

1 declaration

classclass Binary t where

The Binary class provides put and get, methods to encode and decode a Haskell value to a lazy ByteString. It mirrors the Read and Show classes for textual representation of Haskell types, and is suitable for serialising Haskell values to disk, over the network.

For decoding and generating simple external binary formats (e.g. C structures), Binary may be used, but in general is not suitable for complex protocols. Instead use the Put and Get primitives directly.

Instances of Binary should satisfy the following property:

decode . encode == id

That is, the get and put methods should be the inverse of each other. A range of instances are provided for basic Haskell types.

Methods

put :: t -> Put
Encode a value in the Put monad.
get :: Get t
Decode a value in the Get monad
putList :: [t] -> Put
Encode a list of values in the Put monad. The default implementation may be overridden to be more efficient but must still have the same encoding format.

Instances71Binary, …

Binary ByteStringDefined in binary-0.8.9.3 · Data.Binary.Class
Binary ByteStringDefined in binary-0.8.9.3 · Data.Binary.Class
Binary ShortByteStringDefined in binary-0.8.9.3 · Data.Binary.Class
Binary IntSetDefined in binary-0.8.9.3 · Data.Binary.Class
Binary IntegerDefined in binary-0.8.9.3 · Data.Binary.Class
Binary NaturalDefined in binary-0.8.9.3 · Data.Binary.Class
Binary VoidDefined in binary-0.8.9.3 · Data.Binary.Class
Binary AllDefined in binary-0.8.9.3 · Data.Binary.Class
Binary AnyDefined in binary-0.8.9.3 · Data.Binary.Class
Binary SomeTypeRepDefined in binary-0.8.9.3 · Data.Binary.Class
Binary VersionDefined in binary-0.8.9.3 · Data.Binary.Class
Binary FingerprintDefined in binary-0.8.9.3 · Data.Binary.Class
Binary Int16Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Int32Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Int64Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Int8Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Word16Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Word32Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Word64Defined in binary-0.8.9.3 · Data.Binary.Class
Binary Word8Defined in binary-0.8.9.3 · Data.Binary.Class
Binary BoolDefined in binary-0.8.9.3 · Data.Binary.Class
Binary CharDefined in binary-0.8.9.3 · Data.Binary.Class
Binary DoubleDefined in binary-0.8.9.3 · Data.Binary.Class
Uses non-IEEE754 encoding. Does not round-trip NaN.
Binary FloatDefined in binary-0.8.9.3 · Data.Binary.Class
Uses non-IEEE754 encoding. Does not round-trip NaN.
Binary IntDefined in binary-0.8.9.3 · Data.Binary.Class
Binary KindRepDefined in binary-0.8.9.3 · Data.Binary.Class
Binary OrderingDefined in binary-0.8.9.3 · Data.Binary.Class
Binary RuntimeRepDefined in binary-0.8.9.3 · Data.Binary.Class
Binary TyConDefined in binary-0.8.9.3 · Data.Binary.Class
Binary TypeLitSortDefined in binary-0.8.9.3 · Data.Binary.Class
Binary VecCountDefined in binary-0.8.9.3 · Data.Binary.Class
Binary VecElemDefined in binary-0.8.9.3 · Data.Binary.Class
Binary WordDefined in binary-0.8.9.3 · Data.Binary.Class
Binary ()Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Complex a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (First a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Last a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Max a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Min a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Set a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (NonEmpty a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Identity a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (First a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Last a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Dual a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Product a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Sum a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary (Maybe a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary a => Binary [a]Defined in binary-0.8.9.3 · Data.Binary.Class
Binary e => Binary (IntMap e)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary e => Binary (Seq e)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary e => Binary (Tree e)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary m => Binary (WrappedMonoid m)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Integral a) => Binary (Ratio a)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary (Fixed a)Defined in binary-0.8.9.3 · Data.Binary.Class
Typeable a => Binary (TypeRep a)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b) => Binary (Arg a b)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b) => Binary (Either a b)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b) => Binary (a, b)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary i, Ix i, Binary e) => Binary (Array i e)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary i, Ix i, Binary e, IArray UArray e) => Binary (UArray i e)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary k, Binary e) => Binary (Map k e)Defined in binary-0.8.9.3 · Data.Binary.Class
Binary (f a) => Binary (Alt f a)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c) => Binary (a, b, c)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d) => Binary (a, b, c, d)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d, Binary e) => Binary (a, b, c, d, e)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d, Binary e, Binary f) => Binary (a, b, c, d, e, f)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d, Binary e, Binary f, Binary g) => Binary (a, b, c, d, e, f, g)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d, Binary e, Binary f, Binary g, Binary h) => Binary (a, b, c, d, e, f, g, h)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d, Binary e, Binary f, Binary g, Binary h, Binary i) => Binary (a, b, c, d, e, f, g, h, i)Defined in binary-0.8.9.3 · Data.Binary.Class
(Binary a, Binary b, Binary c, Binary d, Binary e, Binary f, Binary g, Binary h, Binary i, Binary j) => Binary (a, b, c, d, e, f, g, h, i, j)Defined in binary-0.8.9.3 · Data.Binary.Class

Example

To serialise a custom type, an instance of Binary for that type is required. For example, suppose we have a data structure:

data Exp = IntE Int
         | OpE  String Exp Exp
   deriving Show

We can encode values of this type into bytestrings using the following instance, which proceeds by recursively breaking down the structure to serialise:

instance Binary Exp where
      put (IntE i)      = do put (0 :: Word8)
                             put i
      put (OpE s e1 e2) = do put (1 :: Word8)
                             put s
                             put e1
                             put e2

      get = do t <- get :: Get Word8
               case t of
                    0 -> do i <- get
                            return (IntE i)
                    1 -> do s  <- get
                            e1 <- get
                            e2 <- get
                            return (OpE s e1 e2)

Note how we write an initial tag byte to indicate each variant of the data type.

We can simplify the writing of get instances using monadic combinators:

      get = do tag <- getWord8
               case tag of
                   0 -> liftM  IntE get
                   1 -> liftM3 OpE  get get get

To serialise this to a bytestring, we use encode, which packs the data structure into a binary format, in a lazy bytestring

> let e = OpE "*" (IntE 7) (OpE "/" (IntE 4) (IntE 2))
> let v = encode e

Where v is a binary encoded data structure. To reconstruct the original data, we use decode

> decode v :: Exp
OpE "*" (IntE 7) (OpE "/" (IntE 4) (IntE 2))

The lazy ByteString that results from encode can be written to disk, and read from disk using Data.ByteString.Lazy IO functions, such as hPutStr or writeFile:

> writeFile "/tmp/exp.txt" (encode e)

And read back with:

> readFile "/tmp/exp.txt" >>= return . decode :: IO Exp
OpE "*" (IntE 7) (OpE "/" (IntE 4) (IntE 2))

We can also directly serialise a value to and from a Handle, or a file:

> v <- decodeFile  "/tmp/exp.txt" :: IO Exp
OpE "*" (IntE 7) (OpE "/" (IntE 4) (IntE 2))

And write a value to disk

> encodeFile "/tmp/a.txt" v

Generic support

2 declarations

Beginning with GHC 7.2, it is possible to use binary serialization without writing any instance boilerplate code.

{-# LANGUAGE DeriveGeneric #-}

import Data.Binary
import GHC.Generics (Generic)

data Foo = Foo
         deriving (Generic)

-- GHC will automatically fill out the instance
instance Binary Foo

This mechanism makes use of GHC's efficient built-in generics support.

classclass GBinaryGet (f :: k -> Type) where

Methods

gget :: Get (f t)

Instances6GBinaryGet

GBinaryGet U1Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
GBinaryGet V1Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
Binary a => GBinaryGet (K1 i a)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
(GBinaryGet a, GBinaryGet b) => GBinaryGet (a :*: b)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
(GSumGet a, GSumGet b, SumSize a, SumSize b) => GBinaryGet (a :+: b)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
GBinaryGet a => GBinaryGet (M1 i c a)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan

classclass GBinaryPut (f :: k -> Type) where

Methods

gput :: f t -> Put

Instances6GBinaryPut

GBinaryPut U1Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
GBinaryPut V1Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
Binary a => GBinaryPut (K1 i a)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
(GBinaryPut a, GBinaryPut b) => GBinaryPut (a :*: b)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
(GSumPut a, GSumPut b, SumSize a, SumSize b) => GBinaryPut (a :+: b)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan
GBinaryPut a => GBinaryPut (M1 i c a)Defined in binary-0.8.9.3 · Data.Binary.Generic · orphan

The Get and Put monads

2 declarations

newtypenewtype Get a

Instances6Monad, Functor, MonadFail, Applicative, Alternative, MonadPlus

Monad GetDefined in binary-0.8.9.3 · Data.Binary.Get.Internal
Functor GetDefined in binary-0.8.9.3 · Data.Binary.Get.Internal
MonadFail GetDefined in binary-0.8.9.3 · Data.Binary.Get.Internal
Applicative GetDefined in binary-0.8.9.3 · Data.Binary.Get.Internal
Alternative GetDefined in binary-0.8.9.3 · Data.Binary.Get.Internal
MonadPlus GetDefined in binary-0.8.9.3 · Data.Binary.Get.Internal

typetype Put = PutM ()

Put merely lifts Builder into a Writer monad, applied to ().

Useful helpers for writing instances

2 declarations

valueputWord8 :: Word8 -> Put

Efficiently write a byte into the output buffer

valuegetWord8 :: Get Word8

Read a Word8 from the monad state

Binary serialisation

3 declarations

valueencode :: Binary a => a -> ByteString

Encode a value using binary serialisation to a lazy ByteString.

valuedecode :: Binary a => ByteString -> a

Decode a value from a lazy ByteString, reconstructing the original structure.

valuedecodeOrFail

:: Binary a
=> ByteString
-> Either (ByteString, ByteOffset, String) (ByteString, ByteOffset, a)

Decode a value from a lazy ByteString. Returning Left on failure and Right on success. In both cases the unconsumed input and the number of consumed bytes is returned. In case of failure, a human-readable error message will be returned as well.

IO functions for serialisation

15 declarations

valueencodeFile :: Binary a => FilePath -> a -> IO ()

Lazily serialise a value to a file.

This is just a convenience function, it's defined simply as:

encodeFile f = B.writeFile f . encode

So for example if you wanted to compress as well, you could use:

B.writeFile f . compress . encode

valuedecodeFile :: Binary a => FilePath -> IO a

Decode a value from a file. In case of errors, error will be called with the error message.

valuedecodeFileOrFail

:: Binary a
=> FilePath
-> IO (Either (ByteOffset, String) a)

Decode a value from a file. In case of success, the value will be returned in Right. In case of decoder errors, the error message together with the byte offset will be returned.

datadata Word

A Word is an unsigned integral type, with the same size as Int.

Instances32Bounded, Enum, Integral, Data, Num, Read, …

Bounded WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Enum
Enum WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Enum
Eq WordDefined in ghc-prim-0.12.0 · GHC.Classes
Integral WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Real
Data WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Data.Data
Num WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Num
Ord WordDefined in ghc-prim-0.12.0 · GHC.Classes
Read WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Read
Real WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Real
Show WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Show
Ix WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Ix
Bits WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Bits
FiniteBits WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Bits
Storable WordDefined in ghc-internal-9.1003.0 · GHC.Internal.Foreign.Storable
PrintfArg WordDefined in base-4.20.2.0 · Text.Printf
NFData WordDefined in deepseq-1.5.0.0 · Control.DeepSeq
Binary WordDefined in binary-0.8.9.3 · Data.Binary.Class
Lift WordDefined in template-haskell-2.22.0.0 · Language.Haskell.TH.Syntax
IArray UArray WordDefined in array-0.5.8.0 · Data.Array.Base
MArray IOUArray Word IODefined in array-0.5.8.0 · Data.Array.IO.Internals
Generic1 (URec Word)Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
Foldable UWordDefined in ghc-internal-9.1003.0 · GHC.Internal.Data.Foldable
Traversable UWordDefined in ghc-internal-9.1003.0 · GHC.Internal.Data.Traversable
MArray (STUArray s) Word (ST s)Defined in array-0.5.8.0 · Data.Array.Base
Functor (URec Word)Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
Eq (URec Word p)Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
Ord (URec Word p)Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
Show (URec Word p)Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
Generic (URec Word p)Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
type Rep (URec Word p) = D1 ('MetaData "URec" "GHC.Internal.Generics" "ghc-internal" 'False) (C1 ('MetaCons "UWord" 'PrefixI 'True) (S1 ('MetaSel ('Just "uWord#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) UWord))Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
type Rep1 (URec Word) = D1 ('MetaData "URec" "GHC.Internal.Generics" "ghc-internal" 'False) (C1 ('MetaCons "UWord" 'PrefixI 'True) (S1 ('MetaSel ('Just "uWord#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) UWord))Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
data URec Word
- UWorduWord# :: Word#
Defined in ghc-internal-9.1003.0 · GHC.Internal.Generics
Used for marking occurrences of Word#

valuebitReverse16 :: Word16 -> Word16

Reverse the order of the bits in a Word16.

valuebitReverse32 :: Word32 -> Word32

Reverse the order of the bits in a Word32.

valuebitReverse64 :: Word64 -> Word64

Reverse the order of the bits in a Word64.

valuebitReverse8 :: Word8 -> Word8

Reverse the order of the bits in a Word8.

valuebyteSwap16 :: Word16 -> Word16

Reverse order of bytes in Word16.

valuebyteSwap32 :: Word32 -> Word32

Reverse order of bytes in Word32.

valuebyteSwap64 :: Word64 -> Word64

Reverse order of bytes in Word64.

datadata Word64

64-bit unsigned integer type

Instances22Bounded, Enum, Eq, Integral, Data, Num, …

Bounded Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Enum Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Eq Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Integral Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Data Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Data.Data
Num Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ord Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Read Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Read
Real Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Show Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ix Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Bits Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
FiniteBits Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Storable Word64Defined in ghc-internal-9.1003.0 · GHC.Internal.Foreign.Storable
PrintfArg Word64Defined in base-4.20.2.0 · Text.Printf
NFData Word64Defined in deepseq-1.5.0.0 · Control.DeepSeq
Mantissa Word64Defined in bytestring-0.12.2.0 · Data.ByteString.Builder.RealFloat.Internal
Binary Word64Defined in binary-0.8.9.3 · Data.Binary.Class
Lift Word64Defined in template-haskell-2.22.0.0 · Language.Haskell.TH.Syntax
IArray UArray Word64Defined in array-0.5.8.0 · Data.Array.Base
MArray IOUArray Word64 IODefined in array-0.5.8.0 · Data.Array.IO.Internals
MArray (STUArray s) Word64 (ST s)Defined in array-0.5.8.0 · Data.Array.Base

datadata Word32

32-bit unsigned integer type

Instances22Bounded, Enum, Eq, Integral, Data, Num, …

Bounded Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Enum Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Eq Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Integral Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Data Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Data.Data
Num Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ord Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Read Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Read
Real Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Show Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ix Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Bits Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
FiniteBits Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Storable Word32Defined in ghc-internal-9.1003.0 · GHC.Internal.Foreign.Storable
PrintfArg Word32Defined in base-4.20.2.0 · Text.Printf
NFData Word32Defined in deepseq-1.5.0.0 · Control.DeepSeq
Mantissa Word32Defined in bytestring-0.12.2.0 · Data.ByteString.Builder.RealFloat.Internal
Binary Word32Defined in binary-0.8.9.3 · Data.Binary.Class
Lift Word32Defined in template-haskell-2.22.0.0 · Language.Haskell.TH.Syntax
IArray UArray Word32Defined in array-0.5.8.0 · Data.Array.Base
MArray IOUArray Word32 IODefined in array-0.5.8.0 · Data.Array.IO.Internals
MArray (STUArray s) Word32 (ST s)Defined in array-0.5.8.0 · Data.Array.Base

datadata Word16

16-bit unsigned integer type

Instances21Bounded, Enum, Eq, Integral, Data, Num, …

Bounded Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Enum Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Eq Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Integral Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Data Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Data.Data
Num Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ord Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Read Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Read
Real Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Show Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ix Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Bits Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
FiniteBits Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Storable Word16Defined in ghc-internal-9.1003.0 · GHC.Internal.Foreign.Storable
PrintfArg Word16Defined in base-4.20.2.0 · Text.Printf
NFData Word16Defined in deepseq-1.5.0.0 · Control.DeepSeq
Binary Word16Defined in binary-0.8.9.3 · Data.Binary.Class
Lift Word16Defined in template-haskell-2.22.0.0 · Language.Haskell.TH.Syntax
IArray UArray Word16Defined in array-0.5.8.0 · Data.Array.Base
MArray IOUArray Word16 IODefined in array-0.5.8.0 · Data.Array.IO.Internals
MArray (STUArray s) Word16 (ST s)Defined in array-0.5.8.0 · Data.Array.Base

datadata Word8

8-bit unsigned integer type

Instances21Bounded, Enum, Eq, Integral, Data, Num, …

Bounded Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Enum Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Eq Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Integral Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Data Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Data.Data
Num Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ord Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Read Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Read
Real Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Show Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Ix Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Bits Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
FiniteBits Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Word
Storable Word8Defined in ghc-internal-9.1003.0 · GHC.Internal.Foreign.Storable
PrintfArg Word8Defined in base-4.20.2.0 · Text.Printf
NFData Word8Defined in deepseq-1.5.0.0 · Control.DeepSeq
Binary Word8Defined in binary-0.8.9.3 · Data.Binary.Class
Lift Word8Defined in template-haskell-2.22.0.0 · Language.Haskell.TH.Syntax
IArray UArray Word8Defined in array-0.5.8.0 · Data.Array.Base
MArray IOUArray Word8 IODefined in array-0.5.8.0 · Data.Array.IO.Internals
MArray (STUArray s) Word8 (ST s)Defined in array-0.5.8.0 · Data.Array.Base