Data.GI.Base.ShortPrelude

The Haskell Prelude exports a number of symbols that can easily collide with functions appearing in bindings. The generated code requires just a small subset of the functions in the Prelude, together with some of the functionality in Data.GI.Base, we reexport this explicitly here.

Documentation

data Char

The character type Char represents Unicode codespace and its elements are code points as in definitions D9 and D10 of the Unicode Standard.

Character literals in Haskell are single-quoted: 'Q', 'Я' or 'Ω'. To represent a single quote itself use '\'', and to represent a backslash use '\\'. The full grammar can be found in the section 2.6 of the Haskell 2010 Language Report.

To specify a character by its code point one can use decimal, hexadecimal or octal notation: '\65', '\x41' and '\o101' are all alternative forms of 'A'. The largest code point is '\x10ffff'.

There is a special escape syntax for ASCII control characters:

Escape	Alternatives	Meaning
'\NUL'	'\0'	null character
'\SOH'	'\1'	start of heading
'\STX'	'\2'	start of text
'\ETX'	'\3'	end of text
'\EOT'	'\4'	end of transmission
'\ENQ'	'\5'	enquiry
'\ACK'	'\6'	acknowledge
'\BEL'	'\7', '\a'	bell (alert)
'\BS'	'\8', '\b'	backspace
'\HT'	'\9', '\t'	horizontal tab
'\LF'	'\10', '\n'	line feed (new line)
'\VT'	'\11', '\v'	vertical tab
'\FF'	'\12', '\f'	form feed
'\CR'	'\13', '\r'	carriage return
'\SO'	'\14'	shift out
'\SI'	'\15'	shift in
'\DLE'	'\16'	data link escape
'\DC1'	'\17'	device control 1
'\DC2'	'\18'	device control 2
'\DC3'	'\19'	device control 3
'\DC4'	'\20'	device control 4
'\NAK'	'\21'	negative acknowledge
'\SYN'	'\22'	synchronous idle
'\ETB'	'\23'	end of transmission block
'\CAN'	'\24'	cancel
'\EM'	'\25'	end of medium
'\SUB'	'\26'	substitute
'\ESC'	'\27'	escape
'\FS'	'\28'	file separator
'\GS'	'\29'	group separator
'\RS'	'\30'	record separator
'\US'	'\31'	unit separator
'\SP'	'\32', ' '	space
'\DEL'	'\127'	delete

Data.Char provides utilities to work with Char.

Instances

Data Char

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Char -> c Char

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Char

toConstr :: Char -> Constr

dataTypeOf :: Char -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Char)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Char)

gmapT :: (forall b. Data b => b -> b) -> Char -> Char

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Char -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Char -> r

gmapQ :: (forall d. Data d => d -> u) -> Char -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Char -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Char -> m Char

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Char -> m Char

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Char -> m Char

Storable Char

Since: base-2.1

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 ()

Bounded Char

Since: base-2.1

Defined in GHC.Enum

Methods

minBound :: Char

maxBound :: Char

Enum Char

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Char -> Char

pred :: Char -> Char

toEnum :: Int -> Char

fromEnum :: Char -> Int

enumFrom :: Char -> [Char]

enumFromThen :: Char -> Char -> [Char]

enumFromTo :: Char -> Char -> [Char]

enumFromThenTo :: Char -> Char -> Char -> [Char]

Ix Char

Since: base-2.1

Defined in GHC.Ix

Methods

range :: (Char, Char) -> [Char]

index :: (Char, Char) -> Char -> Int

unsafeIndex :: (Char, Char) -> Char -> Int

inRange :: (Char, Char) -> Char -> Bool

rangeSize :: (Char, Char) -> Int

unsafeRangeSize :: (Char, Char) -> Int

Read Char

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Char

readList :: ReadS [Char]

readPrec :: ReadPrec Char

readListPrec :: ReadPrec [Char]

Show Char

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Char -> ShowS

show :: Char -> String

showList :: [Char] -> ShowS

IsChar Char

Since: base-2.1

Defined in Text.Printf

Methods

toChar :: Char -> Char

fromChar :: Char -> Char

PrintfArg Char

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Char -> FieldFormatter

parseFormat :: Char -> ModifierParser

Eq Char

Defined in GHC.Classes

Methods

(==) :: Char -> Char -> Bool

(/=) :: Char -> Char -> Bool

Ord Char

Defined in GHC.Classes

Methods

compare :: Char -> Char -> Ordering

(<) :: Char -> Char -> Bool

(<=) :: Char -> Char -> Bool

(>) :: Char -> Char -> Bool

(>=) :: Char -> Char -> Bool

max :: Char -> Char -> Char

min :: Char -> Char -> Char

TestCoercion SChar

Since: base-4.18.0.0

Defined in GHC.TypeLits

Methods

testCoercion :: forall (a :: Char) (b :: Char). SChar a -> SChar b -> Maybe (Coercion a b)

TestEquality SChar

Since: base-4.18.0.0

Defined in GHC.TypeLits

Methods

testEquality :: forall (a :: Char) (b :: Char). SChar a -> SChar b -> Maybe (a :~: b)

Generic1 (URec Char :: k -> Type)

Defined in GHC.Generics

Associated Types

type Rep1 (URec Char :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec Char :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UChar" 'PrefixI 'True) (S1 ('MetaSel ('Just "uChar#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UChar :: k -> Type)))

Methods

from1 :: forall (a :: k). URec Char a -> Rep1 (URec Char :: k -> Type) a

to1 :: forall (a :: k). Rep1 (URec Char :: k -> Type) a -> URec Char a

Foldable (UChar :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Foldable

Methods

fold :: Monoid m => UChar m -> m

foldMap :: Monoid m => (a -> m) -> UChar a -> m

foldMap' :: Monoid m => (a -> m) -> UChar a -> m

foldr :: (a -> b -> b) -> b -> UChar a -> b

foldr' :: (a -> b -> b) -> b -> UChar a -> b

foldl :: (b -> a -> b) -> b -> UChar a -> b

foldl' :: (b -> a -> b) -> b -> UChar a -> b

foldr1 :: (a -> a -> a) -> UChar a -> a

foldl1 :: (a -> a -> a) -> UChar a -> a

toList :: UChar a -> [a]

null :: UChar a -> Bool

length :: UChar a -> Int

elem :: Eq a => a -> UChar a -> Bool

maximum :: Ord a => UChar a -> a

minimum :: Ord a => UChar a -> a

sum :: Num a => UChar a -> a

product :: Num a => UChar a -> a

Traversable (UChar :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> UChar a -> f (UChar b)

sequenceA :: Applicative f => UChar (f a) -> f (UChar a)

mapM :: Monad m => (a -> m b) -> UChar a -> m (UChar b)

sequence :: Monad m => UChar (m a) -> m (UChar a)

IsGValue (Maybe String)

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe String -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe String)

Functor (URec Char :: Type -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Char a -> URec Char b

(<$) :: a -> URec Char b -> URec Char a

Generic (URec Char p)

Defined in GHC.Generics

Associated Types

type Rep (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep (URec Char p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UChar" 'PrefixI 'True) (S1 ('MetaSel ('Just "uChar#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UChar :: Type -> Type)))

Methods

from :: URec Char p -> Rep (URec Char p) x

to :: Rep (URec Char p) x -> URec Char p

Show (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Char p -> ShowS

show :: URec Char p -> String

showList :: [URec Char p] -> ShowS

Eq (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec Char p -> URec Char p -> Bool

(/=) :: URec Char p -> URec Char p -> Bool

Ord (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

compare :: URec Char p -> URec Char p -> Ordering

(<) :: URec Char p -> URec Char p -> Bool

(<=) :: URec Char p -> URec Char p -> Bool

(>) :: URec Char p -> URec Char p -> Bool

(>=) :: URec Char p -> URec Char p -> Bool

max :: URec Char p -> URec Char p -> URec Char p

min :: URec Char p -> URec Char p -> URec Char p

data URec Char (p :: k)

Used for marking occurrences of Char#

Since: base-4.9.0.0

Defined in GHC.Generics

data URec Char (p :: k) = UChar {

• uChar# :: Char#

}

type Compare (a :: Char) (b :: Char)

Defined in Data.Type.Ord

type Compare (a :: Char) (b :: Char) = CmpChar a b

type Rep1 (URec Char :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec Char :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UChar" 'PrefixI 'True) (S1 ('MetaSel ('Just "uChar#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UChar :: k -> Type)))

type Rep (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep (URec Char p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UChar" 'PrefixI 'True) (S1 ('MetaSel ('Just "uChar#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UChar :: Type -> Type)))

ord :: Char -> Int

The fromEnum method restricted to the type Char.

chr :: Int -> Char

The toEnum method restricted to the type Char.

module Data.Int

data Word8

8-bit unsigned integer type

Instances

Data Word8

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Word8 -> c Word8

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Word8

toConstr :: Word8 -> Constr

dataTypeOf :: Word8 -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Word8)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Word8)

gmapT :: (forall b. Data b => b -> b) -> Word8 -> Word8

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Word8 -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Word8 -> r

gmapQ :: (forall d. Data d => d -> u) -> Word8 -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Word8 -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Word8 -> m Word8

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Word8 -> m Word8

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Word8 -> m Word8

Storable Word8

Since: base-2.1

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 ()

Bits Word8

Since: base-2.1

Defined in GHC.Word

Methods

(.&.) :: Word8 -> Word8 -> Word8

(.|.) :: Word8 -> Word8 -> Word8

xor :: Word8 -> Word8 -> Word8

complement :: Word8 -> Word8

shift :: Word8 -> Int -> Word8

rotate :: Word8 -> Int -> Word8

zeroBits :: Word8

bit :: Int -> Word8

setBit :: Word8 -> Int -> Word8

clearBit :: Word8 -> Int -> Word8

complementBit :: Word8 -> Int -> Word8

testBit :: Word8 -> Int -> Bool

bitSizeMaybe :: Word8 -> Maybe Int

bitSize :: Word8 -> Int

isSigned :: Word8 -> Bool

shiftL :: Word8 -> Int -> Word8

unsafeShiftL :: Word8 -> Int -> Word8

shiftR :: Word8 -> Int -> Word8

unsafeShiftR :: Word8 -> Int -> Word8

rotateL :: Word8 -> Int -> Word8

rotateR :: Word8 -> Int -> Word8

popCount :: Word8 -> Int

FiniteBits Word8

Since: base-4.6.0.0

Defined in GHC.Word

Methods

finiteBitSize :: Word8 -> Int

countLeadingZeros :: Word8 -> Int

countTrailingZeros :: Word8 -> Int

Bounded Word8

Since: base-2.1

Defined in GHC.Word

Methods

minBound :: Word8

maxBound :: Word8

Enum Word8

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word8 -> Word8

pred :: Word8 -> Word8

toEnum :: Int -> Word8

fromEnum :: Word8 -> Int

enumFrom :: Word8 -> [Word8]

enumFromThen :: Word8 -> Word8 -> [Word8]

enumFromTo :: Word8 -> Word8 -> [Word8]

enumFromThenTo :: Word8 -> Word8 -> Word8 -> [Word8]

Ix Word8

Since: base-2.1

Defined in GHC.Word

Methods

range :: (Word8, Word8) -> [Word8]

index :: (Word8, Word8) -> Word8 -> Int

unsafeIndex :: (Word8, Word8) -> Word8 -> Int

inRange :: (Word8, Word8) -> Word8 -> Bool

rangeSize :: (Word8, Word8) -> Int

unsafeRangeSize :: (Word8, Word8) -> Int

Num Word8

Since: base-2.1

Defined in GHC.Word

Methods

(+) :: Word8 -> Word8 -> Word8

(-) :: Word8 -> Word8 -> Word8

(*) :: Word8 -> Word8 -> Word8

negate :: Word8 -> Word8

abs :: Word8 -> Word8

signum :: Word8 -> Word8

fromInteger :: Integer -> Word8

Read Word8

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word8

readList :: ReadS [Word8]

readPrec :: ReadPrec Word8

readListPrec :: ReadPrec [Word8]

Integral Word8

Since: base-2.1

Defined in GHC.Word

Methods

quot :: Word8 -> Word8 -> Word8

rem :: Word8 -> Word8 -> Word8

div :: Word8 -> Word8 -> Word8

mod :: Word8 -> Word8 -> Word8

quotRem :: Word8 -> Word8 -> (Word8, Word8)

divMod :: Word8 -> Word8 -> (Word8, Word8)

toInteger :: Word8 -> Integer

Real Word8

Since: base-2.1

Defined in GHC.Word

Methods

toRational :: Word8 -> Rational

Show Word8

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word8 -> ShowS

show :: Word8 -> String

showList :: [Word8] -> ShowS

PrintfArg Word8

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Word8 -> FieldFormatter

parseFormat :: Word8 -> ModifierParser

Eq Word8

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word8 -> Word8 -> Bool

(/=) :: Word8 -> Word8 -> Bool

Ord Word8

Since: base-2.1

Defined in GHC.Word

Methods

compare :: Word8 -> Word8 -> Ordering

(<) :: Word8 -> Word8 -> Bool

(<=) :: Word8 -> Word8 -> Bool

(>) :: Word8 -> Word8 -> Bool

(>=) :: Word8 -> Word8 -> Bool

max :: Word8 -> Word8 -> Word8

min :: Word8 -> Word8 -> Word8

IsGVariant Word8

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Word8 -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe Word8)

toGVariantFormatString :: Word8 -> Text

IsGVariantBasicType Word8

Defined in Data.GI.Base.GVariant

data Word64

64-bit unsigned integer type

Instances

Data Word64

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Word64 -> c Word64

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Word64

toConstr :: Word64 -> Constr

dataTypeOf :: Word64 -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Word64)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Word64)

gmapT :: (forall b. Data b => b -> b) -> Word64 -> Word64

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Word64 -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Word64 -> r

gmapQ :: (forall d. Data d => d -> u) -> Word64 -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Word64 -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Word64 -> m Word64

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Word64 -> m Word64

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Word64 -> m Word64

Storable Word64

Since: base-2.1

Defined in Foreign.Storable

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 ()

Bits Word64

Since: base-2.1

Defined in GHC.Word

Methods

(.&.) :: Word64 -> Word64 -> Word64

(.|.) :: Word64 -> Word64 -> Word64

xor :: Word64 -> Word64 -> Word64

complement :: Word64 -> Word64

shift :: Word64 -> Int -> Word64

rotate :: Word64 -> Int -> Word64

zeroBits :: Word64

bit :: Int -> Word64

setBit :: Word64 -> Int -> Word64

clearBit :: Word64 -> Int -> Word64

complementBit :: Word64 -> Int -> Word64

testBit :: Word64 -> Int -> Bool

bitSizeMaybe :: Word64 -> Maybe Int

bitSize :: Word64 -> Int

isSigned :: Word64 -> Bool

shiftL :: Word64 -> Int -> Word64

unsafeShiftL :: Word64 -> Int -> Word64

shiftR :: Word64 -> Int -> Word64

unsafeShiftR :: Word64 -> Int -> Word64

rotateL :: Word64 -> Int -> Word64

rotateR :: Word64 -> Int -> Word64

popCount :: Word64 -> Int

FiniteBits Word64

Since: base-4.6.0.0

Defined in GHC.Word

Methods

finiteBitSize :: Word64 -> Int

countLeadingZeros :: Word64 -> Int

countTrailingZeros :: Word64 -> Int

Bounded Word64

Since: base-2.1

Defined in GHC.Word

Methods

minBound :: Word64

maxBound :: Word64

Enum Word64

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word64 -> Word64

pred :: Word64 -> Word64

toEnum :: Int -> Word64

fromEnum :: Word64 -> Int

enumFrom :: Word64 -> [Word64]

enumFromThen :: Word64 -> Word64 -> [Word64]

enumFromTo :: Word64 -> Word64 -> [Word64]

enumFromThenTo :: Word64 -> Word64 -> Word64 -> [Word64]

Ix Word64

Since: base-2.1

Defined in GHC.Word

Methods

range :: (Word64, Word64) -> [Word64]

index :: (Word64, Word64) -> Word64 -> Int

unsafeIndex :: (Word64, Word64) -> Word64 -> Int

inRange :: (Word64, Word64) -> Word64 -> Bool

rangeSize :: (Word64, Word64) -> Int

unsafeRangeSize :: (Word64, Word64) -> Int

Num Word64

Since: base-2.1

Defined in GHC.Word

Methods

(+) :: Word64 -> Word64 -> Word64

(-) :: Word64 -> Word64 -> Word64

(*) :: Word64 -> Word64 -> Word64

negate :: Word64 -> Word64

abs :: Word64 -> Word64

signum :: Word64 -> Word64

fromInteger :: Integer -> Word64

Read Word64

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word64

readList :: ReadS [Word64]

readPrec :: ReadPrec Word64

readListPrec :: ReadPrec [Word64]

Integral Word64

Since: base-2.1

Defined in GHC.Word

Methods

quot :: Word64 -> Word64 -> Word64

rem :: Word64 -> Word64 -> Word64

div :: Word64 -> Word64 -> Word64

mod :: Word64 -> Word64 -> Word64

quotRem :: Word64 -> Word64 -> (Word64, Word64)

divMod :: Word64 -> Word64 -> (Word64, Word64)

toInteger :: Word64 -> Integer

Real Word64

Since: base-2.1

Defined in GHC.Word

Methods

toRational :: Word64 -> Rational

Show Word64

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word64 -> ShowS

show :: Word64 -> String

showList :: [Word64] -> ShowS

PrintfArg Word64

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Word64 -> FieldFormatter

parseFormat :: Word64 -> ModifierParser

Eq Word64

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word64 -> Word64 -> Bool

(/=) :: Word64 -> Word64 -> Bool

Ord Word64

Since: base-2.1

Defined in GHC.Word

Methods

compare :: Word64 -> Word64 -> Ordering

(<) :: Word64 -> Word64 -> Bool

(<=) :: Word64 -> Word64 -> Bool

(>) :: Word64 -> Word64 -> Bool

(>=) :: Word64 -> Word64 -> Bool

max :: Word64 -> Word64 -> Word64

min :: Word64 -> Word64 -> Word64

IsGValue Word64

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Word64 -> IO ()

gvalueGet_ :: Ptr GValue -> IO Word64

IsGVariant Word64

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Word64 -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe Word64)

toGVariantFormatString :: Word64 -> Text

IsGVariantBasicType Word64

Defined in Data.GI.Base.GVariant

data Word32

32-bit unsigned integer type

Instances

Data Word32

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Word32 -> c Word32

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Word32

toConstr :: Word32 -> Constr

dataTypeOf :: Word32 -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Word32)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Word32)

gmapT :: (forall b. Data b => b -> b) -> Word32 -> Word32

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Word32 -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Word32 -> r

gmapQ :: (forall d. Data d => d -> u) -> Word32 -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Word32 -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Word32 -> m Word32

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Word32 -> m Word32

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Word32 -> m Word32

Storable Word32

Since: base-2.1

Defined in Foreign.Storable

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 ()

Bits Word32

Since: base-2.1

Defined in GHC.Word

Methods

(.&.) :: Word32 -> Word32 -> Word32

(.|.) :: Word32 -> Word32 -> Word32

xor :: Word32 -> Word32 -> Word32

complement :: Word32 -> Word32

shift :: Word32 -> Int -> Word32

rotate :: Word32 -> Int -> Word32

zeroBits :: Word32

bit :: Int -> Word32

setBit :: Word32 -> Int -> Word32

clearBit :: Word32 -> Int -> Word32

complementBit :: Word32 -> Int -> Word32

testBit :: Word32 -> Int -> Bool

bitSizeMaybe :: Word32 -> Maybe Int

bitSize :: Word32 -> Int

isSigned :: Word32 -> Bool

shiftL :: Word32 -> Int -> Word32

unsafeShiftL :: Word32 -> Int -> Word32

shiftR :: Word32 -> Int -> Word32

unsafeShiftR :: Word32 -> Int -> Word32

rotateL :: Word32 -> Int -> Word32

rotateR :: Word32 -> Int -> Word32

popCount :: Word32 -> Int

FiniteBits Word32

Since: base-4.6.0.0

Defined in GHC.Word

Methods

finiteBitSize :: Word32 -> Int

countLeadingZeros :: Word32 -> Int

countTrailingZeros :: Word32 -> Int

Bounded Word32

Since: base-2.1

Defined in GHC.Word

Methods

minBound :: Word32

maxBound :: Word32

Enum Word32

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word32 -> Word32

pred :: Word32 -> Word32

toEnum :: Int -> Word32

fromEnum :: Word32 -> Int

enumFrom :: Word32 -> [Word32]

enumFromThen :: Word32 -> Word32 -> [Word32]

enumFromTo :: Word32 -> Word32 -> [Word32]

enumFromThenTo :: Word32 -> Word32 -> Word32 -> [Word32]

Ix Word32

Since: base-2.1

Defined in GHC.Word

Methods

range :: (Word32, Word32) -> [Word32]

index :: (Word32, Word32) -> Word32 -> Int

unsafeIndex :: (Word32, Word32) -> Word32 -> Int

inRange :: (Word32, Word32) -> Word32 -> Bool

rangeSize :: (Word32, Word32) -> Int

unsafeRangeSize :: (Word32, Word32) -> Int

Num Word32

Since: base-2.1

Defined in GHC.Word

Methods

(+) :: Word32 -> Word32 -> Word32

(-) :: Word32 -> Word32 -> Word32

(*) :: Word32 -> Word32 -> Word32

negate :: Word32 -> Word32

abs :: Word32 -> Word32

signum :: Word32 -> Word32

fromInteger :: Integer -> Word32

Read Word32

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word32

readList :: ReadS [Word32]

readPrec :: ReadPrec Word32

readListPrec :: ReadPrec [Word32]

Integral Word32

Since: base-2.1

Defined in GHC.Word

Methods

quot :: Word32 -> Word32 -> Word32

rem :: Word32 -> Word32 -> Word32

div :: Word32 -> Word32 -> Word32

mod :: Word32 -> Word32 -> Word32

quotRem :: Word32 -> Word32 -> (Word32, Word32)

divMod :: Word32 -> Word32 -> (Word32, Word32)

toInteger :: Word32 -> Integer

Real Word32

Since: base-2.1

Defined in GHC.Word

Methods

toRational :: Word32 -> Rational

Show Word32

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word32 -> ShowS

show :: Word32 -> String

showList :: [Word32] -> ShowS

PrintfArg Word32

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Word32 -> FieldFormatter

parseFormat :: Word32 -> ModifierParser

Eq Word32

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word32 -> Word32 -> Bool

(/=) :: Word32 -> Word32 -> Bool

Ord Word32

Since: base-2.1

Defined in GHC.Word

Methods

compare :: Word32 -> Word32 -> Ordering

(<) :: Word32 -> Word32 -> Bool

(<=) :: Word32 -> Word32 -> Bool

(>) :: Word32 -> Word32 -> Bool

(>=) :: Word32 -> Word32 -> Bool

max :: Word32 -> Word32 -> Word32

min :: Word32 -> Word32 -> Word32

IsGValue Word32

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Word32 -> IO ()

gvalueGet_ :: Ptr GValue -> IO Word32

IsGVariant Word32

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Word32 -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe Word32)

toGVariantFormatString :: Word32 -> Text

IsGVariantBasicType Word32

Defined in Data.GI.Base.GVariant

data Word16

16-bit unsigned integer type

Instances

Data Word16

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Word16 -> c Word16

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Word16

toConstr :: Word16 -> Constr

dataTypeOf :: Word16 -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Word16)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Word16)

gmapT :: (forall b. Data b => b -> b) -> Word16 -> Word16

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Word16 -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Word16 -> r

gmapQ :: (forall d. Data d => d -> u) -> Word16 -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Word16 -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Word16 -> m Word16

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Word16 -> m Word16

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Word16 -> m Word16

Storable Word16

Since: base-2.1

Defined in Foreign.Storable

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 ()

Bits Word16

Since: base-2.1

Defined in GHC.Word

Methods

(.&.) :: Word16 -> Word16 -> Word16

(.|.) :: Word16 -> Word16 -> Word16

xor :: Word16 -> Word16 -> Word16

complement :: Word16 -> Word16

shift :: Word16 -> Int -> Word16

rotate :: Word16 -> Int -> Word16

zeroBits :: Word16

bit :: Int -> Word16

setBit :: Word16 -> Int -> Word16

clearBit :: Word16 -> Int -> Word16

complementBit :: Word16 -> Int -> Word16

testBit :: Word16 -> Int -> Bool

bitSizeMaybe :: Word16 -> Maybe Int

bitSize :: Word16 -> Int

isSigned :: Word16 -> Bool

shiftL :: Word16 -> Int -> Word16

unsafeShiftL :: Word16 -> Int -> Word16

shiftR :: Word16 -> Int -> Word16

unsafeShiftR :: Word16 -> Int -> Word16

rotateL :: Word16 -> Int -> Word16

rotateR :: Word16 -> Int -> Word16

popCount :: Word16 -> Int

FiniteBits Word16

Since: base-4.6.0.0

Defined in GHC.Word

Methods

finiteBitSize :: Word16 -> Int

countLeadingZeros :: Word16 -> Int

countTrailingZeros :: Word16 -> Int

Bounded Word16

Since: base-2.1

Defined in GHC.Word

Methods

minBound :: Word16

maxBound :: Word16

Enum Word16

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word16 -> Word16

pred :: Word16 -> Word16

toEnum :: Int -> Word16

fromEnum :: Word16 -> Int

enumFrom :: Word16 -> [Word16]

enumFromThen :: Word16 -> Word16 -> [Word16]

enumFromTo :: Word16 -> Word16 -> [Word16]

enumFromThenTo :: Word16 -> Word16 -> Word16 -> [Word16]

Ix Word16

Since: base-2.1

Defined in GHC.Word

Methods

range :: (Word16, Word16) -> [Word16]

index :: (Word16, Word16) -> Word16 -> Int

unsafeIndex :: (Word16, Word16) -> Word16 -> Int

inRange :: (Word16, Word16) -> Word16 -> Bool

rangeSize :: (Word16, Word16) -> Int

unsafeRangeSize :: (Word16, Word16) -> Int

Num Word16

Since: base-2.1

Defined in GHC.Word

Methods

(+) :: Word16 -> Word16 -> Word16

(-) :: Word16 -> Word16 -> Word16

(*) :: Word16 -> Word16 -> Word16

negate :: Word16 -> Word16

abs :: Word16 -> Word16

signum :: Word16 -> Word16

fromInteger :: Integer -> Word16

Read Word16

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word16

readList :: ReadS [Word16]

readPrec :: ReadPrec Word16

readListPrec :: ReadPrec [Word16]

Integral Word16

Since: base-2.1

Defined in GHC.Word

Methods

quot :: Word16 -> Word16 -> Word16

rem :: Word16 -> Word16 -> Word16

div :: Word16 -> Word16 -> Word16

mod :: Word16 -> Word16 -> Word16

quotRem :: Word16 -> Word16 -> (Word16, Word16)

divMod :: Word16 -> Word16 -> (Word16, Word16)

toInteger :: Word16 -> Integer

Real Word16

Since: base-2.1

Defined in GHC.Word

Methods

toRational :: Word16 -> Rational

Show Word16

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word16 -> ShowS

show :: Word16 -> String

showList :: [Word16] -> ShowS

PrintfArg Word16

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Word16 -> FieldFormatter

parseFormat :: Word16 -> ModifierParser

Eq Word16

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word16 -> Word16 -> Bool

(/=) :: Word16 -> Word16 -> Bool

Ord Word16

Since: base-2.1

Defined in GHC.Word

Methods

compare :: Word16 -> Word16 -> Ordering

(<) :: Word16 -> Word16 -> Bool

(<=) :: Word16 -> Word16 -> Bool

(>) :: Word16 -> Word16 -> Bool

(>=) :: Word16 -> Word16 -> Bool

max :: Word16 -> Word16 -> Word16

min :: Word16 -> Word16 -> Word16

IsGVariant Word16

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Word16 -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe Word16)

toGVariantFormatString :: Word16 -> Text

IsGVariantBasicType Word16

Defined in Data.GI.Base.GVariant

data ByteString

A space-efficient representation of a Word8 vector, supporting many efficient operations.

A ByteString contains 8-bit bytes, or by using the operations from Data.ByteString.Char8 it can be interpreted as containing 8-bit characters.

Instances

Data ByteString

Defined in Data.ByteString.Internal.Type

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ByteString -> c ByteString

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c ByteString

toConstr :: ByteString -> Constr

dataTypeOf :: ByteString -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c ByteString)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c ByteString)

gmapT :: (forall b. Data b => b -> b) -> ByteString -> ByteString

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ByteString -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ByteString -> r

gmapQ :: (forall d. Data d => d -> u) -> ByteString -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> ByteString -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> ByteString -> m ByteString

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ByteString -> m ByteString

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ByteString -> m ByteString

IsString ByteString

Beware: fromString truncates multi-byte characters to octets. e.g. "枯朶に烏のとまりけり秋の暮" becomes �6k�nh~�Q��n�

Defined in Data.ByteString.Internal.Type

Methods

fromString :: String -> ByteString

Monoid ByteString

Defined in Data.ByteString.Internal.Type

Methods

mempty :: ByteString

mappend :: ByteString -> ByteString -> ByteString

mconcat :: [ByteString] -> ByteString

Semigroup ByteString

Defined in Data.ByteString.Internal.Type

Methods

(<>) :: ByteString -> ByteString -> ByteString

sconcat :: NonEmpty ByteString -> ByteString

stimes :: Integral b => b -> ByteString -> ByteString

IsList ByteString

Since: bytestring-0.10.12.0

Defined in Data.ByteString.Internal.Type

Associated Types

type Item ByteString

Defined in Data.ByteString.Internal.Type

type Item ByteString = Word8

Methods

fromList :: [Item ByteString] -> ByteString

fromListN :: Int -> [Item ByteString] -> ByteString

toList :: ByteString -> [Item ByteString]

Read ByteString

Defined in Data.ByteString.Internal.Type

Methods

readsPrec :: Int -> ReadS ByteString

readList :: ReadS [ByteString]

readPrec :: ReadPrec ByteString

readListPrec :: ReadPrec [ByteString]

Show ByteString

Defined in Data.ByteString.Internal.Type

Methods

showsPrec :: Int -> ByteString -> ShowS

show :: ByteString -> String

showList :: [ByteString] -> ShowS

NFData ByteString

Defined in Data.ByteString.Internal.Type

Methods

rnf :: ByteString -> ()

Eq ByteString

Defined in Data.ByteString.Internal.Type

Methods

(==) :: ByteString -> ByteString -> Bool

(/=) :: ByteString -> ByteString -> Bool

Ord ByteString

Defined in Data.ByteString.Internal.Type

Methods

compare :: ByteString -> ByteString -> Ordering

(<) :: ByteString -> ByteString -> Bool

(<=) :: ByteString -> ByteString -> Bool

(>) :: ByteString -> ByteString -> Bool

(>=) :: ByteString -> ByteString -> Bool

max :: ByteString -> ByteString -> ByteString

min :: ByteString -> ByteString -> ByteString

IsGVariant ByteString

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: ByteString -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe ByteString)

toGVariantFormatString :: ByteString -> Text

Lift ByteString

Since: bytestring-0.11.2.0

Defined in Data.ByteString.Internal.Type

Methods

lift :: Quote m => ByteString -> m Exp

liftTyped :: forall (m :: Type -> Type). Quote m => ByteString -> Code m ByteString

type Item ByteString

Defined in Data.ByteString.Internal.Type

type Item ByteString = Word8

newtype CFloat

Haskell type representing the C float type. (The concrete types of Foreign.C.Types are platform-specific.)

Constructors

CFloat Float

Instances

Storable CFloat

Defined in Foreign.C.Types

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 ()

Enum CFloat

Defined in Foreign.C.Types

Methods

succ :: CFloat -> CFloat

pred :: CFloat -> CFloat

toEnum :: Int -> CFloat

fromEnum :: CFloat -> Int

enumFrom :: CFloat -> [CFloat]

enumFromThen :: CFloat -> CFloat -> [CFloat]

enumFromTo :: CFloat -> CFloat -> [CFloat]

enumFromThenTo :: CFloat -> CFloat -> CFloat -> [CFloat]

Floating CFloat

Defined in Foreign.C.Types

Methods

pi :: CFloat

exp :: CFloat -> CFloat

log :: CFloat -> CFloat

sqrt :: CFloat -> CFloat

(**) :: CFloat -> CFloat -> CFloat

logBase :: CFloat -> CFloat -> CFloat

sin :: CFloat -> CFloat

cos :: CFloat -> CFloat

tan :: CFloat -> CFloat

asin :: CFloat -> CFloat

acos :: CFloat -> CFloat

atan :: CFloat -> CFloat

sinh :: CFloat -> CFloat

cosh :: CFloat -> CFloat

tanh :: CFloat -> CFloat

asinh :: CFloat -> CFloat

acosh :: CFloat -> CFloat

atanh :: CFloat -> CFloat

log1p :: CFloat -> CFloat

expm1 :: CFloat -> CFloat

log1pexp :: CFloat -> CFloat

log1mexp :: CFloat -> CFloat

RealFloat CFloat

Defined in Foreign.C.Types

Methods

floatRadix :: CFloat -> Integer

floatDigits :: CFloat -> Int

floatRange :: CFloat -> (Int, Int)

decodeFloat :: CFloat -> (Integer, Int)

encodeFloat :: Integer -> Int -> CFloat

exponent :: CFloat -> Int

significand :: CFloat -> CFloat

scaleFloat :: Int -> CFloat -> CFloat

isNaN :: CFloat -> Bool

isInfinite :: CFloat -> Bool

isDenormalized :: CFloat -> Bool

isNegativeZero :: CFloat -> Bool

isIEEE :: CFloat -> Bool

atan2 :: CFloat -> CFloat -> CFloat

Num CFloat

Defined in Foreign.C.Types

Methods

(+) :: CFloat -> CFloat -> CFloat

(-) :: CFloat -> CFloat -> CFloat

(*) :: CFloat -> CFloat -> CFloat

negate :: CFloat -> CFloat

abs :: CFloat -> CFloat

signum :: CFloat -> CFloat

fromInteger :: Integer -> CFloat

Read CFloat

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CFloat

readList :: ReadS [CFloat]

readPrec :: ReadPrec CFloat

readListPrec :: ReadPrec [CFloat]

Fractional CFloat

Defined in Foreign.C.Types

Methods

(/) :: CFloat -> CFloat -> CFloat

recip :: CFloat -> CFloat

fromRational :: Rational -> CFloat

Real CFloat

Defined in Foreign.C.Types

Methods

toRational :: CFloat -> Rational

RealFrac CFloat

Defined in Foreign.C.Types

Methods

properFraction :: Integral b => CFloat -> (b, CFloat)

truncate :: Integral b => CFloat -> b

round :: Integral b => CFloat -> b

ceiling :: Integral b => CFloat -> b

floor :: Integral b => CFloat -> b

Show CFloat

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CFloat -> ShowS

show :: CFloat -> String

showList :: [CFloat] -> ShowS

Eq CFloat

Defined in Foreign.C.Types

Methods

(==) :: CFloat -> CFloat -> Bool

(/=) :: CFloat -> CFloat -> Bool

Ord CFloat

Defined in Foreign.C.Types

Methods

compare :: CFloat -> CFloat -> Ordering

(<) :: CFloat -> CFloat -> Bool

(<=) :: CFloat -> CFloat -> Bool

(>) :: CFloat -> CFloat -> Bool

(>=) :: CFloat -> CFloat -> Bool

max :: CFloat -> CFloat -> CFloat

min :: CFloat -> CFloat -> CFloat

newtype CDouble

Haskell type representing the C double type. (The concrete types of Foreign.C.Types are platform-specific.)

Constructors

CDouble Double

Instances

Storable CDouble

Defined in Foreign.C.Types

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 ()

Enum CDouble

Defined in Foreign.C.Types

Methods

succ :: CDouble -> CDouble

pred :: CDouble -> CDouble

toEnum :: Int -> CDouble

fromEnum :: CDouble -> Int

enumFrom :: CDouble -> [CDouble]

enumFromThen :: CDouble -> CDouble -> [CDouble]

enumFromTo :: CDouble -> CDouble -> [CDouble]

enumFromThenTo :: CDouble -> CDouble -> CDouble -> [CDouble]

Floating CDouble

Defined in Foreign.C.Types

Methods

pi :: CDouble

exp :: CDouble -> CDouble

log :: CDouble -> CDouble

sqrt :: CDouble -> CDouble

(**) :: CDouble -> CDouble -> CDouble

logBase :: CDouble -> CDouble -> CDouble

sin :: CDouble -> CDouble

cos :: CDouble -> CDouble

tan :: CDouble -> CDouble

asin :: CDouble -> CDouble

acos :: CDouble -> CDouble

atan :: CDouble -> CDouble

sinh :: CDouble -> CDouble

cosh :: CDouble -> CDouble

tanh :: CDouble -> CDouble

asinh :: CDouble -> CDouble

acosh :: CDouble -> CDouble

atanh :: CDouble -> CDouble

log1p :: CDouble -> CDouble

expm1 :: CDouble -> CDouble

log1pexp :: CDouble -> CDouble

log1mexp :: CDouble -> CDouble

RealFloat CDouble

Defined in Foreign.C.Types

Methods

floatRadix :: CDouble -> Integer

floatDigits :: CDouble -> Int

floatRange :: CDouble -> (Int, Int)

decodeFloat :: CDouble -> (Integer, Int)

encodeFloat :: Integer -> Int -> CDouble

exponent :: CDouble -> Int

significand :: CDouble -> CDouble

scaleFloat :: Int -> CDouble -> CDouble

isNaN :: CDouble -> Bool

isInfinite :: CDouble -> Bool

isDenormalized :: CDouble -> Bool

isNegativeZero :: CDouble -> Bool

isIEEE :: CDouble -> Bool

atan2 :: CDouble -> CDouble -> CDouble

Num CDouble

Defined in Foreign.C.Types

Methods

(+) :: CDouble -> CDouble -> CDouble

(-) :: CDouble -> CDouble -> CDouble

(*) :: CDouble -> CDouble -> CDouble

negate :: CDouble -> CDouble

abs :: CDouble -> CDouble

signum :: CDouble -> CDouble

fromInteger :: Integer -> CDouble

Read CDouble

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CDouble

readList :: ReadS [CDouble]

readPrec :: ReadPrec CDouble

readListPrec :: ReadPrec [CDouble]

Fractional CDouble

Defined in Foreign.C.Types

Methods

(/) :: CDouble -> CDouble -> CDouble

recip :: CDouble -> CDouble

fromRational :: Rational -> CDouble

Real CDouble

Defined in Foreign.C.Types

Methods

toRational :: CDouble -> Rational

RealFrac CDouble

Defined in Foreign.C.Types

Methods

properFraction :: Integral b => CDouble -> (b, CDouble)

truncate :: Integral b => CDouble -> b

round :: Integral b => CDouble -> b

ceiling :: Integral b => CDouble -> b

floor :: Integral b => CDouble -> b

Show CDouble

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CDouble -> ShowS

show :: CDouble -> String

showList :: [CDouble] -> ShowS

Eq CDouble

Defined in Foreign.C.Types

Methods

(==) :: CDouble -> CDouble -> Bool

(/=) :: CDouble -> CDouble -> Bool

Ord CDouble

Defined in Foreign.C.Types

Methods

compare :: CDouble -> CDouble -> Ordering

(<) :: CDouble -> CDouble -> Bool

(<=) :: CDouble -> CDouble -> Bool

(>) :: CDouble -> CDouble -> Bool

(>=) :: CDouble -> CDouble -> Bool

max :: CDouble -> CDouble -> CDouble

min :: CDouble -> CDouble -> CDouble

type CString = Ptr CChar

A C string is a reference to an array of C characters terminated by NUL.

newtype CUIntPtr

Constructors

CUIntPtr Word64

Instances

Storable CUIntPtr

Defined in Foreign.C.Types

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 ()

Bits CUIntPtr

Defined in Foreign.C.Types

Methods

(.&.) :: CUIntPtr -> CUIntPtr -> CUIntPtr

(.|.) :: CUIntPtr -> CUIntPtr -> CUIntPtr

xor :: CUIntPtr -> CUIntPtr -> CUIntPtr

complement :: CUIntPtr -> CUIntPtr

shift :: CUIntPtr -> Int -> CUIntPtr

rotate :: CUIntPtr -> Int -> CUIntPtr

zeroBits :: CUIntPtr

bit :: Int -> CUIntPtr

setBit :: CUIntPtr -> Int -> CUIntPtr

clearBit :: CUIntPtr -> Int -> CUIntPtr

complementBit :: CUIntPtr -> Int -> CUIntPtr

testBit :: CUIntPtr -> Int -> Bool

bitSizeMaybe :: CUIntPtr -> Maybe Int

bitSize :: CUIntPtr -> Int

isSigned :: CUIntPtr -> Bool

shiftL :: CUIntPtr -> Int -> CUIntPtr

unsafeShiftL :: CUIntPtr -> Int -> CUIntPtr

shiftR :: CUIntPtr -> Int -> CUIntPtr

unsafeShiftR :: CUIntPtr -> Int -> CUIntPtr

rotateL :: CUIntPtr -> Int -> CUIntPtr

rotateR :: CUIntPtr -> Int -> CUIntPtr

popCount :: CUIntPtr -> Int

FiniteBits CUIntPtr

Defined in Foreign.C.Types

Methods

finiteBitSize :: CUIntPtr -> Int

countLeadingZeros :: CUIntPtr -> Int

countTrailingZeros :: CUIntPtr -> Int

Bounded CUIntPtr

Defined in Foreign.C.Types

Methods

minBound :: CUIntPtr

maxBound :: CUIntPtr

Enum CUIntPtr

Defined in Foreign.C.Types

Methods

succ :: CUIntPtr -> CUIntPtr

pred :: CUIntPtr -> CUIntPtr

toEnum :: Int -> CUIntPtr

fromEnum :: CUIntPtr -> Int

enumFrom :: CUIntPtr -> [CUIntPtr]

enumFromThen :: CUIntPtr -> CUIntPtr -> [CUIntPtr]

enumFromTo :: CUIntPtr -> CUIntPtr -> [CUIntPtr]

enumFromThenTo :: CUIntPtr -> CUIntPtr -> CUIntPtr -> [CUIntPtr]

Ix CUIntPtr

Defined in Foreign.C.Types

Methods

range :: (CUIntPtr, CUIntPtr) -> [CUIntPtr]

index :: (CUIntPtr, CUIntPtr) -> CUIntPtr -> Int

unsafeIndex :: (CUIntPtr, CUIntPtr) -> CUIntPtr -> Int

inRange :: (CUIntPtr, CUIntPtr) -> CUIntPtr -> Bool

rangeSize :: (CUIntPtr, CUIntPtr) -> Int

unsafeRangeSize :: (CUIntPtr, CUIntPtr) -> Int

Num CUIntPtr

Defined in Foreign.C.Types

Methods

(+) :: CUIntPtr -> CUIntPtr -> CUIntPtr

(-) :: CUIntPtr -> CUIntPtr -> CUIntPtr

(*) :: CUIntPtr -> CUIntPtr -> CUIntPtr

negate :: CUIntPtr -> CUIntPtr

abs :: CUIntPtr -> CUIntPtr

signum :: CUIntPtr -> CUIntPtr

fromInteger :: Integer -> CUIntPtr

Read CUIntPtr

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CUIntPtr

readList :: ReadS [CUIntPtr]

readPrec :: ReadPrec CUIntPtr

readListPrec :: ReadPrec [CUIntPtr]

Integral CUIntPtr

Defined in Foreign.C.Types

Methods

quot :: CUIntPtr -> CUIntPtr -> CUIntPtr

rem :: CUIntPtr -> CUIntPtr -> CUIntPtr

div :: CUIntPtr -> CUIntPtr -> CUIntPtr

mod :: CUIntPtr -> CUIntPtr -> CUIntPtr

quotRem :: CUIntPtr -> CUIntPtr -> (CUIntPtr, CUIntPtr)

divMod :: CUIntPtr -> CUIntPtr -> (CUIntPtr, CUIntPtr)

toInteger :: CUIntPtr -> Integer

Real CUIntPtr

Defined in Foreign.C.Types

Methods

toRational :: CUIntPtr -> Rational

Show CUIntPtr

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUIntPtr -> ShowS

show :: CUIntPtr -> String

showList :: [CUIntPtr] -> ShowS

Eq CUIntPtr

Defined in Foreign.C.Types

Methods

(==) :: CUIntPtr -> CUIntPtr -> Bool

(/=) :: CUIntPtr -> CUIntPtr -> Bool

Ord CUIntPtr

Defined in Foreign.C.Types

Methods

compare :: CUIntPtr -> CUIntPtr -> Ordering

(<) :: CUIntPtr -> CUIntPtr -> Bool

(<=) :: CUIntPtr -> CUIntPtr -> Bool

(>) :: CUIntPtr -> CUIntPtr -> Bool

(>=) :: CUIntPtr -> CUIntPtr -> Bool

max :: CUIntPtr -> CUIntPtr -> CUIntPtr

min :: CUIntPtr -> CUIntPtr -> CUIntPtr

newtype CIntPtr

Constructors

CIntPtr Int64

Instances

Storable CIntPtr

Defined in Foreign.C.Types

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 ()

Bits CIntPtr

Defined in Foreign.C.Types

Methods

(.&.) :: CIntPtr -> CIntPtr -> CIntPtr

(.|.) :: CIntPtr -> CIntPtr -> CIntPtr

xor :: CIntPtr -> CIntPtr -> CIntPtr

complement :: CIntPtr -> CIntPtr

shift :: CIntPtr -> Int -> CIntPtr

rotate :: CIntPtr -> Int -> CIntPtr

zeroBits :: CIntPtr

bit :: Int -> CIntPtr

setBit :: CIntPtr -> Int -> CIntPtr

clearBit :: CIntPtr -> Int -> CIntPtr

complementBit :: CIntPtr -> Int -> CIntPtr

testBit :: CIntPtr -> Int -> Bool

bitSizeMaybe :: CIntPtr -> Maybe Int

bitSize :: CIntPtr -> Int

isSigned :: CIntPtr -> Bool

shiftL :: CIntPtr -> Int -> CIntPtr

unsafeShiftL :: CIntPtr -> Int -> CIntPtr

shiftR :: CIntPtr -> Int -> CIntPtr

unsafeShiftR :: CIntPtr -> Int -> CIntPtr

rotateL :: CIntPtr -> Int -> CIntPtr

rotateR :: CIntPtr -> Int -> CIntPtr

popCount :: CIntPtr -> Int

FiniteBits CIntPtr

Defined in Foreign.C.Types

Methods

finiteBitSize :: CIntPtr -> Int

countLeadingZeros :: CIntPtr -> Int

countTrailingZeros :: CIntPtr -> Int

Bounded CIntPtr

Defined in Foreign.C.Types

Methods

minBound :: CIntPtr

maxBound :: CIntPtr

Enum CIntPtr

Defined in Foreign.C.Types

Methods

succ :: CIntPtr -> CIntPtr

pred :: CIntPtr -> CIntPtr

toEnum :: Int -> CIntPtr

fromEnum :: CIntPtr -> Int

enumFrom :: CIntPtr -> [CIntPtr]

enumFromThen :: CIntPtr -> CIntPtr -> [CIntPtr]

enumFromTo :: CIntPtr -> CIntPtr -> [CIntPtr]

enumFromThenTo :: CIntPtr -> CIntPtr -> CIntPtr -> [CIntPtr]

Ix CIntPtr

Defined in Foreign.C.Types

Methods

range :: (CIntPtr, CIntPtr) -> [CIntPtr]

index :: (CIntPtr, CIntPtr) -> CIntPtr -> Int

unsafeIndex :: (CIntPtr, CIntPtr) -> CIntPtr -> Int

inRange :: (CIntPtr, CIntPtr) -> CIntPtr -> Bool

rangeSize :: (CIntPtr, CIntPtr) -> Int

unsafeRangeSize :: (CIntPtr, CIntPtr) -> Int

Num CIntPtr

Defined in Foreign.C.Types

Methods

(+) :: CIntPtr -> CIntPtr -> CIntPtr

(-) :: CIntPtr -> CIntPtr -> CIntPtr

(*) :: CIntPtr -> CIntPtr -> CIntPtr

negate :: CIntPtr -> CIntPtr

abs :: CIntPtr -> CIntPtr

signum :: CIntPtr -> CIntPtr

fromInteger :: Integer -> CIntPtr

Read CIntPtr

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CIntPtr

readList :: ReadS [CIntPtr]

readPrec :: ReadPrec CIntPtr

readListPrec :: ReadPrec [CIntPtr]

Integral CIntPtr

Defined in Foreign.C.Types

Methods

quot :: CIntPtr -> CIntPtr -> CIntPtr

rem :: CIntPtr -> CIntPtr -> CIntPtr

div :: CIntPtr -> CIntPtr -> CIntPtr

mod :: CIntPtr -> CIntPtr -> CIntPtr

quotRem :: CIntPtr -> CIntPtr -> (CIntPtr, CIntPtr)

divMod :: CIntPtr -> CIntPtr -> (CIntPtr, CIntPtr)

toInteger :: CIntPtr -> Integer

Real CIntPtr

Defined in Foreign.C.Types

Methods

toRational :: CIntPtr -> Rational

Show CIntPtr

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CIntPtr -> ShowS

show :: CIntPtr -> String

showList :: [CIntPtr] -> ShowS

Eq CIntPtr

Defined in Foreign.C.Types

Methods

(==) :: CIntPtr -> CIntPtr -> Bool

(/=) :: CIntPtr -> CIntPtr -> Bool

Ord CIntPtr

Defined in Foreign.C.Types

Methods

compare :: CIntPtr -> CIntPtr -> Ordering

(<) :: CIntPtr -> CIntPtr -> Bool

(<=) :: CIntPtr -> CIntPtr -> Bool

(>) :: CIntPtr -> CIntPtr -> Bool

(>=) :: CIntPtr -> CIntPtr -> Bool

max :: CIntPtr -> CIntPtr -> CIntPtr

min :: CIntPtr -> CIntPtr -> CIntPtr

newtype CULong

Haskell type representing the C unsigned long type. (The concrete types of Foreign.C.Types are platform-specific.)

Constructors

CULong Word64

Instances

Storable CULong

Defined in Foreign.C.Types

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 ()

Bits CULong

Defined in Foreign.C.Types

Methods

(.&.) :: CULong -> CULong -> CULong

(.|.) :: CULong -> CULong -> CULong

xor :: CULong -> CULong -> CULong

complement :: CULong -> CULong

shift :: CULong -> Int -> CULong

rotate :: CULong -> Int -> CULong

zeroBits :: CULong

bit :: Int -> CULong

setBit :: CULong -> Int -> CULong

clearBit :: CULong -> Int -> CULong

complementBit :: CULong -> Int -> CULong

testBit :: CULong -> Int -> Bool

bitSizeMaybe :: CULong -> Maybe Int

bitSize :: CULong -> Int

isSigned :: CULong -> Bool

shiftL :: CULong -> Int -> CULong

unsafeShiftL :: CULong -> Int -> CULong

shiftR :: CULong -> Int -> CULong

unsafeShiftR :: CULong -> Int -> CULong

rotateL :: CULong -> Int -> CULong

rotateR :: CULong -> Int -> CULong

popCount :: CULong -> Int

FiniteBits CULong

Defined in Foreign.C.Types

Methods

finiteBitSize :: CULong -> Int

countLeadingZeros :: CULong -> Int

countTrailingZeros :: CULong -> Int

Bounded CULong

Defined in Foreign.C.Types

Methods

minBound :: CULong

maxBound :: CULong

Enum CULong

Defined in Foreign.C.Types

Methods

succ :: CULong -> CULong

pred :: CULong -> CULong

toEnum :: Int -> CULong

fromEnum :: CULong -> Int

enumFrom :: CULong -> [CULong]

enumFromThen :: CULong -> CULong -> [CULong]

enumFromTo :: CULong -> CULong -> [CULong]

enumFromThenTo :: CULong -> CULong -> CULong -> [CULong]

Ix CULong

Defined in Foreign.C.Types

Methods

range :: (CULong, CULong) -> [CULong]

index :: (CULong, CULong) -> CULong -> Int

unsafeIndex :: (CULong, CULong) -> CULong -> Int

inRange :: (CULong, CULong) -> CULong -> Bool

rangeSize :: (CULong, CULong) -> Int

unsafeRangeSize :: (CULong, CULong) -> Int

Num CULong

Defined in Foreign.C.Types

Methods

(+) :: CULong -> CULong -> CULong

(-) :: CULong -> CULong -> CULong

(*) :: CULong -> CULong -> CULong

negate :: CULong -> CULong

abs :: CULong -> CULong

signum :: CULong -> CULong

fromInteger :: Integer -> CULong

Read CULong

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CULong

readList :: ReadS [CULong]

readPrec :: ReadPrec CULong

readListPrec :: ReadPrec [CULong]

Integral CULong

Defined in Foreign.C.Types

Methods

quot :: CULong -> CULong -> CULong

rem :: CULong -> CULong -> CULong

div :: CULong -> CULong -> CULong

mod :: CULong -> CULong -> CULong

quotRem :: CULong -> CULong -> (CULong, CULong)

divMod :: CULong -> CULong -> (CULong, CULong)

toInteger :: CULong -> Integer

Real CULong

Defined in Foreign.C.Types

Methods

toRational :: CULong -> Rational

Show CULong

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CULong -> ShowS

show :: CULong -> String

showList :: [CULong] -> ShowS

Eq CULong

Defined in Foreign.C.Types

Methods

(==) :: CULong -> CULong -> Bool

(/=) :: CULong -> CULong -> Bool

Ord CULong

Defined in Foreign.C.Types

Methods

compare :: CULong -> CULong -> Ordering

(<) :: CULong -> CULong -> Bool

(<=) :: CULong -> CULong -> Bool

(>) :: CULong -> CULong -> Bool

(>=) :: CULong -> CULong -> Bool

max :: CULong -> CULong -> CULong

min :: CULong -> CULong -> CULong

IsGValue CULong

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> CULong -> IO ()

gvalueGet_ :: Ptr GValue -> IO CULong

newtype CLong

Haskell type representing the C long type. (The concrete types of Foreign.C.Types are platform-specific.)

Constructors

CLong Int64

Instances

Storable CLong

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 ()

Bits CLong

Defined in Foreign.C.Types

Methods

(.&.) :: CLong -> CLong -> CLong

(.|.) :: CLong -> CLong -> CLong

xor :: CLong -> CLong -> CLong

complement :: CLong -> CLong

shift :: CLong -> Int -> CLong

rotate :: CLong -> Int -> CLong

zeroBits :: CLong

bit :: Int -> CLong

setBit :: CLong -> Int -> CLong

clearBit :: CLong -> Int -> CLong

complementBit :: CLong -> Int -> CLong

testBit :: CLong -> Int -> Bool

bitSizeMaybe :: CLong -> Maybe Int

bitSize :: CLong -> Int

isSigned :: CLong -> Bool

shiftL :: CLong -> Int -> CLong

unsafeShiftL :: CLong -> Int -> CLong

shiftR :: CLong -> Int -> CLong

unsafeShiftR :: CLong -> Int -> CLong

rotateL :: CLong -> Int -> CLong

rotateR :: CLong -> Int -> CLong

popCount :: CLong -> Int

FiniteBits CLong

Defined in Foreign.C.Types

Methods

finiteBitSize :: CLong -> Int

countLeadingZeros :: CLong -> Int

countTrailingZeros :: CLong -> Int

Bounded CLong

Defined in Foreign.C.Types

Methods

minBound :: CLong

maxBound :: CLong

Enum CLong

Defined in Foreign.C.Types

Methods

succ :: CLong -> CLong

pred :: CLong -> CLong

toEnum :: Int -> CLong

fromEnum :: CLong -> Int

enumFrom :: CLong -> [CLong]

enumFromThen :: CLong -> CLong -> [CLong]

enumFromTo :: CLong -> CLong -> [CLong]

enumFromThenTo :: CLong -> CLong -> CLong -> [CLong]

Ix CLong

Defined in Foreign.C.Types

Methods

range :: (CLong, CLong) -> [CLong]

index :: (CLong, CLong) -> CLong -> Int

unsafeIndex :: (CLong, CLong) -> CLong -> Int

inRange :: (CLong, CLong) -> CLong -> Bool

rangeSize :: (CLong, CLong) -> Int

unsafeRangeSize :: (CLong, CLong) -> Int

Num CLong

Defined in Foreign.C.Types

Methods

(+) :: CLong -> CLong -> CLong

(-) :: CLong -> CLong -> CLong

(*) :: CLong -> CLong -> CLong

negate :: CLong -> CLong

abs :: CLong -> CLong

signum :: CLong -> CLong

fromInteger :: Integer -> CLong

Read CLong

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CLong

readList :: ReadS [CLong]

readPrec :: ReadPrec CLong

readListPrec :: ReadPrec [CLong]

Integral CLong

Defined in Foreign.C.Types

Methods

quot :: CLong -> CLong -> CLong

rem :: CLong -> CLong -> CLong

div :: CLong -> CLong -> CLong

mod :: CLong -> CLong -> CLong

quotRem :: CLong -> CLong -> (CLong, CLong)

divMod :: CLong -> CLong -> (CLong, CLong)

toInteger :: CLong -> Integer

Real CLong

Defined in Foreign.C.Types

Methods

toRational :: CLong -> Rational

Show CLong

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CLong -> ShowS

show :: CLong -> String

showList :: [CLong] -> ShowS

Eq CLong

Defined in Foreign.C.Types

Methods

(==) :: CLong -> CLong -> Bool

(/=) :: CLong -> CLong -> Bool

Ord CLong

Defined in Foreign.C.Types

Methods

compare :: CLong -> CLong -> Ordering

(<) :: CLong -> CLong -> Bool

(<=) :: CLong -> CLong -> Bool

(>) :: CLong -> CLong -> Bool

(>=) :: CLong -> CLong -> Bool

max :: CLong -> CLong -> CLong

min :: CLong -> CLong -> CLong

IsGValue CLong

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> CLong -> IO ()

gvalueGet_ :: Ptr GValue -> IO CLong

newtype CUInt

Haskell type representing the C unsigned int type. (The concrete types of Foreign.C.Types are platform-specific.)

Constructors

CUInt Word32

Instances

Storable CUInt

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 ()

Bits CUInt

Defined in Foreign.C.Types

Methods

(.&.) :: CUInt -> CUInt -> CUInt

(.|.) :: CUInt -> CUInt -> CUInt

xor :: CUInt -> CUInt -> CUInt

complement :: CUInt -> CUInt

shift :: CUInt -> Int -> CUInt

rotate :: CUInt -> Int -> CUInt

zeroBits :: CUInt

bit :: Int -> CUInt

setBit :: CUInt -> Int -> CUInt

clearBit :: CUInt -> Int -> CUInt

complementBit :: CUInt -> Int -> CUInt

testBit :: CUInt -> Int -> Bool

bitSizeMaybe :: CUInt -> Maybe Int

bitSize :: CUInt -> Int

isSigned :: CUInt -> Bool

shiftL :: CUInt -> Int -> CUInt

unsafeShiftL :: CUInt -> Int -> CUInt

shiftR :: CUInt -> Int -> CUInt

unsafeShiftR :: CUInt -> Int -> CUInt

rotateL :: CUInt -> Int -> CUInt

rotateR :: CUInt -> Int -> CUInt

popCount :: CUInt -> Int

FiniteBits CUInt

Defined in Foreign.C.Types

Methods

finiteBitSize :: CUInt -> Int

countLeadingZeros :: CUInt -> Int

countTrailingZeros :: CUInt -> Int

Bounded CUInt

Defined in Foreign.C.Types

Methods

minBound :: CUInt

maxBound :: CUInt

Enum CUInt

Defined in Foreign.C.Types

Methods

succ :: CUInt -> CUInt

pred :: CUInt -> CUInt

toEnum :: Int -> CUInt

fromEnum :: CUInt -> Int

enumFrom :: CUInt -> [CUInt]

enumFromThen :: CUInt -> CUInt -> [CUInt]

enumFromTo :: CUInt -> CUInt -> [CUInt]

enumFromThenTo :: CUInt -> CUInt -> CUInt -> [CUInt]

Ix CUInt

Defined in Foreign.C.Types

Methods

range :: (CUInt, CUInt) -> [CUInt]

index :: (CUInt, CUInt) -> CUInt -> Int

unsafeIndex :: (CUInt, CUInt) -> CUInt -> Int

inRange :: (CUInt, CUInt) -> CUInt -> Bool

rangeSize :: (CUInt, CUInt) -> Int

unsafeRangeSize :: (CUInt, CUInt) -> Int

Num CUInt

Defined in Foreign.C.Types

Methods

(+) :: CUInt -> CUInt -> CUInt

(-) :: CUInt -> CUInt -> CUInt

(*) :: CUInt -> CUInt -> CUInt

negate :: CUInt -> CUInt

abs :: CUInt -> CUInt

signum :: CUInt -> CUInt

fromInteger :: Integer -> CUInt

Read CUInt

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CUInt

readList :: ReadS [CUInt]

readPrec :: ReadPrec CUInt

readListPrec :: ReadPrec [CUInt]

Integral CUInt

Defined in Foreign.C.Types

Methods

quot :: CUInt -> CUInt -> CUInt

rem :: CUInt -> CUInt -> CUInt

div :: CUInt -> CUInt -> CUInt

mod :: CUInt -> CUInt -> CUInt

quotRem :: CUInt -> CUInt -> (CUInt, CUInt)

divMod :: CUInt -> CUInt -> (CUInt, CUInt)

toInteger :: CUInt -> Integer

Real CUInt

Defined in Foreign.C.Types

Methods

toRational :: CUInt -> Rational

Show CUInt

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUInt -> ShowS

show :: CUInt -> String

showList :: [CUInt] -> ShowS

Eq CUInt

Defined in Foreign.C.Types

Methods

(==) :: CUInt -> CUInt -> Bool

(/=) :: CUInt -> CUInt -> Bool

Ord CUInt

Defined in Foreign.C.Types

Methods

compare :: CUInt -> CUInt -> Ordering

(<) :: CUInt -> CUInt -> Bool

(<=) :: CUInt -> CUInt -> Bool

(>) :: CUInt -> CUInt -> Bool

(>=) :: CUInt -> CUInt -> Bool

max :: CUInt -> CUInt -> CUInt

min :: CUInt -> CUInt -> CUInt

IsGValue CUInt

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> CUInt -> IO ()

gvalueGet_ :: Ptr GValue -> IO CUInt

newtype CInt

Haskell type representing the C int type. (The concrete types of Foreign.C.Types are platform-specific.)

Constructors

CInt Int32

Instances

Storable CInt

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 ()

Bits CInt

Defined in Foreign.C.Types

Methods

(.&.) :: CInt -> CInt -> CInt

(.|.) :: CInt -> CInt -> CInt

xor :: CInt -> CInt -> CInt

complement :: CInt -> CInt

shift :: CInt -> Int -> CInt

rotate :: CInt -> Int -> CInt

zeroBits :: CInt

bit :: Int -> CInt

setBit :: CInt -> Int -> CInt

clearBit :: CInt -> Int -> CInt

complementBit :: CInt -> Int -> CInt

testBit :: CInt -> Int -> Bool

bitSizeMaybe :: CInt -> Maybe Int

bitSize :: CInt -> Int

isSigned :: CInt -> Bool

shiftL :: CInt -> Int -> CInt

unsafeShiftL :: CInt -> Int -> CInt

shiftR :: CInt -> Int -> CInt

unsafeShiftR :: CInt -> Int -> CInt

rotateL :: CInt -> Int -> CInt

rotateR :: CInt -> Int -> CInt

popCount :: CInt -> Int

FiniteBits CInt

Defined in Foreign.C.Types

Methods

finiteBitSize :: CInt -> Int

countLeadingZeros :: CInt -> Int

countTrailingZeros :: CInt -> Int

Bounded CInt

Defined in Foreign.C.Types

Methods

minBound :: CInt

maxBound :: CInt

Enum CInt

Defined in Foreign.C.Types

Methods

succ :: CInt -> CInt

pred :: CInt -> CInt

toEnum :: Int -> CInt

fromEnum :: CInt -> Int

enumFrom :: CInt -> [CInt]

enumFromThen :: CInt -> CInt -> [CInt]

enumFromTo :: CInt -> CInt -> [CInt]

enumFromThenTo :: CInt -> CInt -> CInt -> [CInt]

Ix CInt

Defined in Foreign.C.Types

Methods

range :: (CInt, CInt) -> [CInt]

index :: (CInt, CInt) -> CInt -> Int

unsafeIndex :: (CInt, CInt) -> CInt -> Int

inRange :: (CInt, CInt) -> CInt -> Bool

rangeSize :: (CInt, CInt) -> Int

unsafeRangeSize :: (CInt, CInt) -> Int

Num CInt

Defined in Foreign.C.Types

Methods

(+) :: CInt -> CInt -> CInt

(-) :: CInt -> CInt -> CInt

(*) :: CInt -> CInt -> CInt

negate :: CInt -> CInt

abs :: CInt -> CInt

signum :: CInt -> CInt

fromInteger :: Integer -> CInt

Read CInt

Defined in Foreign.C.Types

Methods

readsPrec :: Int -> ReadS CInt

readList :: ReadS [CInt]

readPrec :: ReadPrec CInt

readListPrec :: ReadPrec [CInt]

Integral CInt

Defined in Foreign.C.Types

Methods

quot :: CInt -> CInt -> CInt

rem :: CInt -> CInt -> CInt

div :: CInt -> CInt -> CInt

mod :: CInt -> CInt -> CInt

quotRem :: CInt -> CInt -> (CInt, CInt)

divMod :: CInt -> CInt -> (CInt, CInt)

toInteger :: CInt -> Integer

Real CInt

Defined in Foreign.C.Types

Methods

toRational :: CInt -> Rational

Show CInt

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CInt -> ShowS

show :: CInt -> String

showList :: [CInt] -> ShowS

Eq CInt

Defined in Foreign.C.Types

Methods

(==) :: CInt -> CInt -> Bool

(/=) :: CInt -> CInt -> Bool

Ord CInt

Defined in Foreign.C.Types

Methods

compare :: CInt -> CInt -> Ordering

(<) :: CInt -> CInt -> Bool

(<=) :: CInt -> CInt -> Bool

(>) :: CInt -> CInt -> Bool

(>=) :: CInt -> CInt -> Bool

max :: CInt -> CInt -> CInt

min :: CInt -> CInt -> CInt

IsGValue CInt

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> CInt -> IO ()

gvalueGet_ :: Ptr GValue -> IO CInt

data Ptr a

A value of type Ptr a represents a pointer to an object, or an array of objects, which may be marshalled to or from Haskell values of type a.

The type a will often be an instance of class Storable which provides the marshalling operations. However this is not essential, and you can provide your own operations to access the pointer. For example you might write small foreign functions to get or set the fields of a C struct.

Instances

Generic1 (URec (Ptr ()) :: k -> Type)

Defined in GHC.Generics

Associated Types

type Rep1 (URec (Ptr ()) :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec (Ptr ()) :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UAddr" 'PrefixI 'True) (S1 ('MetaSel ('Just "uAddr#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UAddr :: k -> Type)))

Methods

from1 :: forall (a :: k). URec (Ptr ()) a -> Rep1 (URec (Ptr ()) :: k -> Type) a

to1 :: forall (a :: k). Rep1 (URec (Ptr ()) :: k -> Type) a -> URec (Ptr ()) a

Data a => Data (Ptr a)

Since: base-4.8.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Ptr a -> c (Ptr a)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Ptr a)

toConstr :: Ptr a -> Constr

dataTypeOf :: Ptr a -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Ptr a))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Ptr a))

gmapT :: (forall b. Data b => b -> b) -> Ptr a -> Ptr a

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Ptr a -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Ptr a -> r

gmapQ :: (forall d. Data d => d -> u) -> Ptr a -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Ptr a -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Ptr a -> m (Ptr a)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Ptr a -> m (Ptr a)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Ptr a -> m (Ptr a)

Foldable (UAddr :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Foldable

Methods

fold :: Monoid m => UAddr m -> m

foldMap :: Monoid m => (a -> m) -> UAddr a -> m

foldMap' :: Monoid m => (a -> m) -> UAddr a -> m

foldr :: (a -> b -> b) -> b -> UAddr a -> b

foldr' :: (a -> b -> b) -> b -> UAddr a -> b

foldl :: (b -> a -> b) -> b -> UAddr a -> b

foldl' :: (b -> a -> b) -> b -> UAddr a -> b

foldr1 :: (a -> a -> a) -> UAddr a -> a

foldl1 :: (a -> a -> a) -> UAddr a -> a

toList :: UAddr a -> [a]

null :: UAddr a -> Bool

length :: UAddr a -> Int

elem :: Eq a => a -> UAddr a -> Bool

maximum :: Ord a => UAddr a -> a

minimum :: Ord a => UAddr a -> a

sum :: Num a => UAddr a -> a

product :: Num a => UAddr a -> a

Traversable (UAddr :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> UAddr a -> f (UAddr b)

sequenceA :: Applicative f => UAddr (f a) -> f (UAddr a)

mapM :: Monad m => (a -> m b) -> UAddr a -> m (UAddr b)

sequence :: Monad m => UAddr (m a) -> m (UAddr a)

Storable (Ptr a)

Since: base-2.1

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 ()

Show (Ptr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

showsPrec :: Int -> Ptr a -> ShowS

show :: Ptr a -> String

showList :: [Ptr a] -> ShowS

Eq (Ptr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

(==) :: Ptr a -> Ptr a -> Bool

(/=) :: Ptr a -> Ptr a -> Bool

Ord (Ptr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

compare :: Ptr a -> Ptr a -> Ordering

(<) :: Ptr a -> Ptr a -> Bool

(<=) :: Ptr a -> Ptr a -> Bool

(>) :: Ptr a -> Ptr a -> Bool

(>=) :: Ptr a -> Ptr a -> Bool

max :: Ptr a -> Ptr a -> Ptr a

min :: Ptr a -> Ptr a -> Ptr a

IsGValue (Ptr a)

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Ptr a -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Ptr a)

Functor (URec (Ptr ()) :: Type -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec (Ptr ()) a -> URec (Ptr ()) b

(<$) :: a -> URec (Ptr ()) b -> URec (Ptr ()) a

Generic (URec (Ptr ()) p)

Defined in GHC.Generics

Associated Types

type Rep (URec (Ptr ()) p)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep (URec (Ptr ()) p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UAddr" 'PrefixI 'True) (S1 ('MetaSel ('Just "uAddr#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UAddr :: Type -> Type)))

Methods

from :: URec (Ptr ()) p -> Rep (URec (Ptr ()) p) x

to :: Rep (URec (Ptr ()) p) x -> URec (Ptr ()) p

Eq (URec (Ptr ()) p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

(/=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

Ord (URec (Ptr ()) p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

compare :: URec (Ptr ()) p -> URec (Ptr ()) p -> Ordering

(<) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

(<=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

(>) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

(>=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

max :: URec (Ptr ()) p -> URec (Ptr ()) p -> URec (Ptr ()) p

min :: URec (Ptr ()) p -> URec (Ptr ()) p -> URec (Ptr ()) p

data URec (Ptr ()) (p :: k)

Used for marking occurrences of Addr#

Since: base-4.9.0.0

Defined in GHC.Generics

data URec (Ptr ()) (p :: k) = UAddr {

• uAddr# :: Addr#

}

type Rep1 (URec (Ptr ()) :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec (Ptr ()) :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UAddr" 'PrefixI 'True) (S1 ('MetaSel ('Just "uAddr#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UAddr :: k -> Type)))

type Rep (URec (Ptr ()) p)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep (URec (Ptr ()) p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UAddr" 'PrefixI 'True) (S1 ('MetaSel ('Just "uAddr#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UAddr :: Type -> Type)))

nullPtr :: Ptr a

The constant nullPtr contains a distinguished value of Ptr that is not associated with a valid memory location.

data FunPtr a

A value of type FunPtr a is a pointer to a function callable from foreign code. The type a will normally be a foreign type, a function type with zero or more arguments where

• the argument types are marshallable foreign types, i.e. Char, Int, Double, Float, Bool, Int8, Int16, Int32, Int64, Word8, Word16, Word32, Word64, Ptr a, FunPtr a, StablePtr a or a renaming of any of these using newtype.
• the return type is either a marshallable foreign type or has the form IO t where t is a marshallable foreign type or ().

A value of type FunPtr a may be a pointer to a foreign function, either returned by another foreign function or imported with a a static address import like

foreign import ccall "stdlib.h &free"
  p_free :: FunPtr (Ptr a -> IO ())

or a pointer to a Haskell function created using a wrapper stub declared to produce a FunPtr of the correct type. For example:

type Compare = Int -> Int -> Bool
foreign import ccall "wrapper"
  mkCompare :: Compare -> IO (FunPtr Compare)

Calls to wrapper stubs like mkCompare allocate storage, which should be released with freeHaskellFunPtr when no longer required.

To convert FunPtr values to corresponding Haskell functions, one can define a dynamic stub for the specific foreign type, e.g.

type IntFunction = CInt -> IO ()
foreign import ccall "dynamic"
  mkFun :: FunPtr IntFunction -> IntFunction

Instances

Storable (FunPtr a)

Since: base-2.1

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 ()

Show (FunPtr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

showsPrec :: Int -> FunPtr a -> ShowS

show :: FunPtr a -> String

showList :: [FunPtr a] -> ShowS

Eq (FunPtr a)

Defined in GHC.Ptr

Methods

(==) :: FunPtr a -> FunPtr a -> Bool

(/=) :: FunPtr a -> FunPtr a -> Bool

Ord (FunPtr a)

Defined in GHC.Ptr

Methods

compare :: FunPtr a -> FunPtr a -> Ordering

(<) :: FunPtr a -> FunPtr a -> Bool

(<=) :: FunPtr a -> FunPtr a -> Bool

(>) :: FunPtr a -> FunPtr a -> Bool

(>=) :: FunPtr a -> FunPtr a -> Bool

max :: FunPtr a -> FunPtr a -> FunPtr a

min :: FunPtr a -> FunPtr a -> FunPtr a

plusPtr :: Ptr a -> Int -> Ptr b

Advances the given address by the given offset in bytes.

castFunPtrToPtr :: FunPtr a -> Ptr b

Casts a FunPtr to a Ptr.

Note: this is valid only on architectures where data and function pointers range over the same set of addresses, and should only be used for bindings to external libraries whose interface already relies on this assumption.

castPtrToFunPtr :: Ptr a -> FunPtr b

Casts a Ptr to a FunPtr.

Note: this is valid only on architectures where data and function pointers range over the same set of addresses, and should only be used for bindings to external libraries whose interface already relies on this assumption.

data ForeignPtr a

The type ForeignPtr represents references to objects that are maintained in a foreign language, i.e., that are not part of the data structures usually managed by the Haskell storage manager. The essential difference between ForeignPtrs and vanilla memory references of type Ptr a is that the former may be associated with finalizers. A finalizer is a routine that is invoked when the Haskell storage manager detects that - within the Haskell heap and stack - there are no more references left that are pointing to the ForeignPtr. Typically, the finalizer will, then, invoke routines in the foreign language that free the resources bound by the foreign object.

The ForeignPtr is parameterised in the same way as Ptr. The type argument of ForeignPtr should normally be an instance of class Storable.

Instances

Data a => Data (ForeignPtr a)

Since: base-4.8.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ForeignPtr a -> c (ForeignPtr a)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (ForeignPtr a)

toConstr :: ForeignPtr a -> Constr

dataTypeOf :: ForeignPtr a -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (ForeignPtr a))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (ForeignPtr a))

gmapT :: (forall b. Data b => b -> b) -> ForeignPtr a -> ForeignPtr a

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ForeignPtr a -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ForeignPtr a -> r

gmapQ :: (forall d. Data d => d -> u) -> ForeignPtr a -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> ForeignPtr a -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> ForeignPtr a -> m (ForeignPtr a)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ForeignPtr a -> m (ForeignPtr a)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ForeignPtr a -> m (ForeignPtr a)

Show (ForeignPtr a)

Since: base-2.1

Defined in GHC.ForeignPtr

Methods

showsPrec :: Int -> ForeignPtr a -> ShowS

show :: ForeignPtr a -> String

showList :: [ForeignPtr a] -> ShowS

Eq (ForeignPtr a)

Since: base-2.1

Defined in GHC.ForeignPtr

Methods

(==) :: ForeignPtr a -> ForeignPtr a -> Bool

(/=) :: ForeignPtr a -> ForeignPtr a -> Bool

Ord (ForeignPtr a)

Since: base-2.1

Defined in GHC.ForeignPtr

Methods

compare :: ForeignPtr a -> ForeignPtr a -> Ordering

(<) :: ForeignPtr a -> ForeignPtr a -> Bool

(<=) :: ForeignPtr a -> ForeignPtr a -> Bool

(>) :: ForeignPtr a -> ForeignPtr a -> Bool

(>=) :: ForeignPtr a -> ForeignPtr a -> Bool

max :: ForeignPtr a -> ForeignPtr a -> ForeignPtr a

min :: ForeignPtr a -> ForeignPtr a -> ForeignPtr a

module Foreign.ForeignPtr.Unsafe

sizeOf :: Storable a => a -> Int

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

peek :: Storable a => 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 :: Storable a => Ptr a -> a -> IO ()

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

(<$>) :: Functor f => (a -> b) -> f a -> f b infixl 4

An infix synonym for fmap.

The name of this operator is an allusion to $. Note the similarities between their types:

 ($)  ::              (a -> b) ->   a ->   b
(<$>) :: Functor f => (a -> b) -> f a -> f b

Whereas $ is function application, <$> is function application lifted over a Functor.

Examples

Convert from a Maybe Int to a Maybe String using show:

>>> show <$> Nothing
Nothing
>>> show <$> Just 3
Just "3"

Convert from an Either Int Int to an Either Int String using show:

>>> show <$> Left 17
Left 17
>>> show <$> Right 17
Right "17"

Double each element of a list:

>>> (*2) <$> [1,2,3]
[2,4,6]

Apply even to the second element of a pair:

>>> even <$> (2,2)
(2,True)

onException :: IO a -> IO b -> IO a

Like finally, but only performs the final action if there was an exception raised by the computation.

module Control.Monad.IO.Class

clear :: forall info (attr :: Symbol) obj m. (AttrClearC info obj attr, MonadIO m) => obj -> AttrLabelProxy attr -> m ()

Set a nullable attribute to NULL.

data AttrOp obj (tag :: AttrOpTag) where

Constructors for the different operations allowed on an attribute.

Constructors

(:=) :: forall obj info (attr :: Symbol) (tag :: AttrOpTag) b. (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed tag info obj, AttrSetTypeConstraint info b) => AttrLabelProxy attr -> b -> AttrOp obj tag infixr 0

Assign a value to an attribute

(:=>) :: forall obj info (attr :: Symbol) (tag :: AttrOpTag) b. (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed tag info obj, AttrSetTypeConstraint info b) => AttrLabelProxy attr -> IO b -> AttrOp obj tag infixr 0

Assign the result of an IO action to an attribute

(:~) :: forall obj info (attr :: Symbol) (tag :: AttrOpTag) b a. (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, tag ~ 'AttrSet, AttrOpAllowed 'AttrSet info obj, AttrOpAllowed 'AttrGet info obj, AttrSetTypeConstraint info b, a ~ AttrGetType info) => AttrLabelProxy attr -> (a -> b) -> AttrOp obj tag infixr 0

Apply an update function to an attribute

(:~>) :: forall obj info (attr :: Symbol) (tag :: AttrOpTag) b a. (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, tag ~ 'AttrSet, AttrOpAllowed 'AttrSet info obj, AttrOpAllowed 'AttrGet info obj, AttrSetTypeConstraint info b, a ~ AttrGetType info) => AttrLabelProxy attr -> (a -> IO b) -> AttrOp obj tag infixr 0

Apply an IO update function to an attribute

(:&=) :: forall obj info (attr :: Symbol) (tag :: AttrOpTag) b. (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed tag info obj, AttrTransferTypeConstraint info b, AttrSetTypeConstraint info (AttrTransferType info)) => AttrLabelProxy attr -> b -> AttrOp obj tag

Assign a value to an attribute, allocating any necessary memory for representing the Haskell value as a C value. Note that it is the responsibility of the caller to make sure that the memory is freed when no longer used, otherwise there will be a memory leak. In the majority of cases you probably want to use := instead, which has no potential memory leaks (at the cost of sometimes requiring some explicit Haskell -> C marshalling).

On :: forall obj info (tag :: AttrOpTag). (GObject obj, SignalInfo info) => SignalProxy obj info -> ((?self :: obj) => HaskellCallbackType info) -> AttrOp obj tag

Connect the given signal to a signal handler.

After :: forall obj info (tag :: AttrOpTag). (GObject obj, SignalInfo info) => SignalProxy obj info -> ((?self :: obj) => HaskellCallbackType info) -> AttrOp obj tag

Like On, but connect after the default signal.

class AttrInfo info where

Info describing an attribute.

Minimal complete definition

Nothing

Associated Types

type AttrAllowedOps info :: [AttrOpTag]

The operations that are allowed on the attribute.

type AttrBaseTypeConstraint info :: Type -> Constraint

Constraint on the type for which we are allowed to create/set/get the attribute.

type AttrGetType info

Type returned by attrGet.

type AttrSetTypeConstraint info :: Type -> Constraint

Constraint on the value being set.

type AttrSetTypeConstraint info = Type ~ AttrGetType info

type AttrTransferTypeConstraint info :: Type -> Constraint

Constraint on the value being set, with allocation allowed (see :&= below).

type AttrTransferTypeConstraint info = Type ~ AttrTransferType info

type AttrTransferType info

Type resulting from the allocation.

type AttrTransferType info = AttrGetType info

type AttrLabel info :: Symbol

Name of the attribute.

type AttrOrigin info

Type which introduces the attribute.

Methods

attrGet :: AttrBaseTypeConstraint info o => o -> IO (AttrGetType info)

Get the value of the given attribute.

default attrGet :: CheckNotElem 'AttrGet (AttrAllowedOps info) (GetNotProvidedError info) => o -> IO (AttrGetType info)

attrSet :: (AttrBaseTypeConstraint info o, AttrSetTypeConstraint info b) => o -> b -> IO ()

Set the value of the given attribute, after the object having the attribute has already been created.

default attrSet :: CheckNotElem 'AttrSet (AttrAllowedOps info) (SetNotProvidedError info) => o -> b -> IO ()

attrClear :: AttrBaseTypeConstraint info o => o -> IO ()

Set the value of the given attribute to NULL (for nullable attributes).

default attrClear :: CheckNotElem 'AttrClear (AttrAllowedOps info) (ClearNotProvidedError info) => o -> IO ()

attrConstruct :: (AttrBaseTypeConstraint info o, AttrSetTypeConstraint info b) => b -> IO (GValueConstruct o)

Build a GValue representing the attribute.

default attrConstruct :: CheckNotElem 'AttrConstruct (AttrAllowedOps info) (ConstructNotProvidedError info) => b -> IO (GValueConstruct o)

attrTransfer :: (AttrBaseTypeConstraint info o, AttrTransferTypeConstraint info b) => Proxy o -> b -> IO (AttrTransferType info)

Allocate memory as necessary to generate a settable type from the transfer type. This is useful for types which needs allocations for marshalling from Haskell to C, this makes the allocation explicit.

default attrTransfer :: (AttrBaseTypeConstraint info o, AttrTransferTypeConstraint info b, b ~ AttrGetType info, b ~ AttrTransferType info) => Proxy o -> b -> IO (AttrTransferType info)

dbgAttrInfo :: Maybe ResolvedSymbolInfo

Return some information about the overloaded attribute, useful for debugging. See resolveAttr for how to access this conveniently.

data AttrOpTag

Possible operations on an attribute.

Constructors

AttrGet

It is possible to read the value of the attribute with get.

AttrSet

It is possible to write the value of the attribute with set.

AttrConstruct

It is possible to set the value of the attribute in new.

AttrClear

It is possible to clear the value of the (nullable) attribute with clear.

Instances

Bounded AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

minBound :: AttrOpTag

maxBound :: AttrOpTag

Enum AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

succ :: AttrOpTag -> AttrOpTag

pred :: AttrOpTag -> AttrOpTag

toEnum :: Int -> AttrOpTag

fromEnum :: AttrOpTag -> Int

enumFrom :: AttrOpTag -> [AttrOpTag]

enumFromThen :: AttrOpTag -> AttrOpTag -> [AttrOpTag]

enumFromTo :: AttrOpTag -> AttrOpTag -> [AttrOpTag]

enumFromThenTo :: AttrOpTag -> AttrOpTag -> AttrOpTag -> [AttrOpTag]

Show AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

showsPrec :: Int -> AttrOpTag -> ShowS

show :: AttrOpTag -> String

showList :: [AttrOpTag] -> ShowS

Eq AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

(==) :: AttrOpTag -> AttrOpTag -> Bool

(/=) :: AttrOpTag -> AttrOpTag -> Bool

Ord AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

compare :: AttrOpTag -> AttrOpTag -> Ordering

(<) :: AttrOpTag -> AttrOpTag -> Bool

(<=) :: AttrOpTag -> AttrOpTag -> Bool

(>) :: AttrOpTag -> AttrOpTag -> Bool

(>=) :: AttrOpTag -> AttrOpTag -> Bool

max :: AttrOpTag -> AttrOpTag -> AttrOpTag

min :: AttrOpTag -> AttrOpTag -> AttrOpTag

type family AttrOpAllowed (tag :: AttrOpTag) info useType where ...

Whether a given AttrOpTag is allowed on an attribute, given the info type.

Equations

AttrOpAllowed tag info useType = AttrOpIsAllowed tag (AttrAllowedOps info) (AttrLabel info) (AttrOrigin info) useType

type AttrGetC info obj (attr :: Symbol) result = (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed 'AttrGet info obj, result ~ AttrGetType info)

Constraints on a obj/attr pair so get is possible, producing a value of type result.

type AttrSetC info obj (attr :: Symbol) value = (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed 'AttrSet info obj, AttrSetTypeConstraint info value)

Constraint on a obj/attr pair so that set works on values of type value.

type AttrConstructC info obj (attr :: Symbol) value = (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed 'AttrConstruct info obj, AttrSetTypeConstraint info value)

Constraint on a obj/value pair so that new works on values of type value.

type AttrClearC info obj (attr :: Symbol) = (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info, AttrBaseTypeConstraint info obj, AttrOpAllowed 'AttrClear info obj)

Constraint on a obj/attr pair so that clear is allowed.

data AttrLabelProxy (a :: Symbol)

A proxy for attribute labels.

Constructors

AttrLabelProxy

Instances

a ~ x => IsLabel x (AttrLabelProxy a)

Defined in Data.GI.Base.Attributes

Methods

fromLabel :: AttrLabelProxy a

resolveAttr :: forall info (attr :: Symbol) obj. (HasAttributeList obj, info ~ ResolveAttribute attr obj, AttrInfo info) => obj -> AttrLabelProxy attr -> Maybe ResolvedSymbolInfo

Return the fully qualified attribute name that a given overloaded attribute resolves to (mostly useful for debugging).

resolveAttr #sensitive button

type family AttrLabel info :: Symbol

Name of the attribute.

type family AttrAllowedOps info :: [AttrOpTag]

The operations that are allowed on the attribute.

type family AttrBaseTypeConstraint info :: Type -> Constraint

Constraint on the type for which we are allowed to create/set/get the attribute.

type family AttrGetType info

Type returned by attrGet.

type family AttrSetTypeConstraint info :: Type -> Constraint

Constraint on the value being set.

type family AttrTransferTypeConstraint info :: Type -> Constraint

Constraint on the value being set, with allocation allowed (see :&= below).

type family AttrTransferType info

Type resulting from the allocation.

type family AttrOrigin info

Type which introduces the attribute.

module Data.GI.Base.BasicTypes

module Data.GI.Base.BasicConversions

data GClosure a

The basic type. This corresponds to a wrapped GClosure on the C side, which is a boxed object.

Instances

GBoxed (GClosure a)

GClosures are registered as boxed in the GLib type system.

Defined in Data.GI.Base.GClosure

TypedObject (GClosure a)

Find the associated GType for the given closure.

Defined in Data.GI.Base.GClosure

Methods

glibType :: IO GType

HasParentTypes (GClosure a)

Defined in Data.GI.Base.GClosure

type ParentTypes (GClosure a)

There are no types in the bindings that a closure can be safely cast to.

Defined in Data.GI.Base.GClosure

type ParentTypes (GClosure a) = '[] :: [Type]

module Data.GI.Base.Constructible

module Data.GI.Base.GError

module Data.GI.Base.GHashTable

module Data.GI.Base.GParamSpec

module Data.GI.Base.GObject

module Data.GI.Base.GVariant

module Data.GI.Base.GValue

module Data.GI.Base.ManagedPtr

class SignalInfo info where

Information about an overloaded signal.

Minimal complete definition

connectSignal

Associated Types

type HaskellCallbackType info

The type for the signal handler.

Methods

connectSignal :: GObject o => o -> (o -> HaskellCallbackType info) -> SignalConnectMode -> Maybe Text -> IO SignalHandlerId

Connect a Haskell function to a signal of the given GObject, specifying whether the handler will be called before or after the default handler. Note that the callback being passed here admits an extra initial parameter with respect to the usual Haskell callback type. This will be passed as an implicit ?self argument to the Haskell callback.

dbgSignalInfo :: Maybe ResolvedSymbolInfo

Optional extra debug information, for resolveSignal below.

Instances

SignalInfo GObjectNotifySignalInfo

Defined in Data.GI.Base.Signals

Associated Types

type HaskellCallbackType GObjectNotifySignalInfo

Defined in Data.GI.Base.Signals

type HaskellCallbackType GObjectNotifySignalInfo

Methods

connectSignal :: GObject o => o -> (o -> HaskellCallbackType GObjectNotifySignalInfo) -> SignalConnectMode -> Maybe Text -> IO SignalHandlerId

dbgSignalInfo :: Maybe ResolvedSymbolInfo

data SignalConnectMode

Whether to connect a handler to a signal with connectSignal so that it runs before/after the default handler for the given signal.

Constructors

SignalConnectBefore

Run before the default handler.

SignalConnectAfter

Run after the default handler.

connectSignalFunPtr :: GObject o => o -> Text -> FunPtr a -> SignalConnectMode -> Maybe Text -> IO SignalHandlerId

Connect a signal to a handler, given as a FunPtr.

type SignalHandlerId = CULong

Type of a GObject signal handler id.

data GObjectNotifySignalInfo

Connection information for a "notify" signal indicating that a specific property changed (see PropertyNotify for the relevant constructor).

Instances

SignalInfo GObjectNotifySignalInfo

Defined in Data.GI.Base.Signals

Associated Types

type HaskellCallbackType GObjectNotifySignalInfo

Defined in Data.GI.Base.Signals

type HaskellCallbackType GObjectNotifySignalInfo

Methods

connectSignal :: GObject o => o -> (o -> HaskellCallbackType GObjectNotifySignalInfo) -> SignalConnectMode -> Maybe Text -> IO SignalHandlerId

dbgSignalInfo :: Maybe ResolvedSymbolInfo

type HaskellCallbackType GObjectNotifySignalInfo

Defined in Data.GI.Base.Signals

type HaskellCallbackType GObjectNotifySignalInfo

type family HaskellCallbackType info

The type for the signal handler.

Instances

type HaskellCallbackType GObjectNotifySignalInfo

Defined in Data.GI.Base.Signals

type HaskellCallbackType GObjectNotifySignalInfo

module Data.GI.Base.Utils

data Symbol

(Kind) This is the kind of type-level symbols.

Instances

SingKind Symbol

Since: base-4.9.0.0

Defined in GHC.Generics

Associated Types

type DemoteRep Symbol

Defined in GHC.Generics

type DemoteRep Symbol = String

Methods

fromSing :: forall (a :: Symbol). Sing a -> DemoteRep Symbol

TestCoercion SSymbol

Since: base-4.18.0.0

Defined in GHC.TypeLits

Methods

testCoercion :: forall (a :: Symbol) (b :: Symbol). SSymbol a -> SSymbol b -> Maybe (Coercion a b)

TestEquality SSymbol

Since: base-4.18.0.0

Defined in GHC.TypeLits

Methods

testEquality :: forall (a :: Symbol) (b :: Symbol). SSymbol a -> SSymbol b -> Maybe (a :~: b)

KnownSymbol a => SingI (a :: Symbol)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

sing :: Sing a

type DemoteRep Symbol

Defined in GHC.Generics

type DemoteRep Symbol = String

data Sing (s :: Symbol)

Defined in GHC.Generics

data Sing (s :: Symbol) where

• SSym :: forall (s :: Symbol). KnownSymbol s => Sing s

type Compare (a :: Symbol) (b :: Symbol)

Defined in Data.Type.Ord

type Compare (a :: Symbol) (b :: Symbol) = CmpSymbol a b

class Enum a where

Class Enum defines operations on sequentially ordered types.

The enumFrom... methods are used in Haskell's translation of arithmetic sequences.

Instances of Enum may be derived for any enumeration type (types whose constructors have no fields). The nullary constructors are assumed to be numbered left-to-right by fromEnum from 0 through n-1. See Chapter 10 of the Haskell Report for more details.

For any type that is an instance of class Bounded as well as Enum, the following should hold:

• The calls succ maxBound and pred minBound should result in a runtime error.
• fromEnum and toEnum should give a runtime error if the result value is not representable in the result type. For example, toEnum 7 :: Bool is an error.
• enumFrom and enumFromThen should be defined with an implicit bound, thus:

   enumFrom     x   = enumFromTo     x maxBound
   enumFromThen x y = enumFromThenTo x y bound
     where
       bound | fromEnum y >= fromEnum x = maxBound
             | otherwise                = minBound

Methods

toEnum :: Int -> a

Convert from an Int.

fromEnum :: a -> Int

Convert to an Int. It is implementation-dependent what fromEnum returns when applied to a value that is too large to fit in an Int.

Instances

Enum CBool

Defined in Foreign.C.Types

Methods

succ :: CBool -> CBool

pred :: CBool -> CBool

toEnum :: Int -> CBool

fromEnum :: CBool -> Int

enumFrom :: CBool -> [CBool]

enumFromThen :: CBool -> CBool -> [CBool]

enumFromTo :: CBool -> CBool -> [CBool]

enumFromThenTo :: CBool -> CBool -> CBool -> [CBool]

Enum CChar

Defined in Foreign.C.Types

Methods

succ :: CChar -> CChar

pred :: CChar -> CChar

toEnum :: Int -> CChar

fromEnum :: CChar -> Int

enumFrom :: CChar -> [CChar]

enumFromThen :: CChar -> CChar -> [CChar]

enumFromTo :: CChar -> CChar -> [CChar]

enumFromThenTo :: CChar -> CChar -> CChar -> [CChar]

Enum CClock

Defined in Foreign.C.Types

Methods

succ :: CClock -> CClock

pred :: CClock -> CClock

toEnum :: Int -> CClock

fromEnum :: CClock -> Int

enumFrom :: CClock -> [CClock]

enumFromThen :: CClock -> CClock -> [CClock]

enumFromTo :: CClock -> CClock -> [CClock]

enumFromThenTo :: CClock -> CClock -> CClock -> [CClock]

Enum CDouble

Defined in Foreign.C.Types

Methods

succ :: CDouble -> CDouble

pred :: CDouble -> CDouble

toEnum :: Int -> CDouble

fromEnum :: CDouble -> Int

enumFrom :: CDouble -> [CDouble]

enumFromThen :: CDouble -> CDouble -> [CDouble]

enumFromTo :: CDouble -> CDouble -> [CDouble]

enumFromThenTo :: CDouble -> CDouble -> CDouble -> [CDouble]

Enum CFloat

Defined in Foreign.C.Types

Methods

succ :: CFloat -> CFloat

pred :: CFloat -> CFloat

toEnum :: Int -> CFloat

fromEnum :: CFloat -> Int

enumFrom :: CFloat -> [CFloat]

enumFromThen :: CFloat -> CFloat -> [CFloat]

enumFromTo :: CFloat -> CFloat -> [CFloat]

enumFromThenTo :: CFloat -> CFloat -> CFloat -> [CFloat]

Enum CInt

Defined in Foreign.C.Types

Methods

succ :: CInt -> CInt

pred :: CInt -> CInt

toEnum :: Int -> CInt

fromEnum :: CInt -> Int

enumFrom :: CInt -> [CInt]

enumFromThen :: CInt -> CInt -> [CInt]

enumFromTo :: CInt -> CInt -> [CInt]

enumFromThenTo :: CInt -> CInt -> CInt -> [CInt]

Enum CIntMax

Defined in Foreign.C.Types

Methods

succ :: CIntMax -> CIntMax

pred :: CIntMax -> CIntMax

toEnum :: Int -> CIntMax

fromEnum :: CIntMax -> Int

enumFrom :: CIntMax -> [CIntMax]

enumFromThen :: CIntMax -> CIntMax -> [CIntMax]

enumFromTo :: CIntMax -> CIntMax -> [CIntMax]

enumFromThenTo :: CIntMax -> CIntMax -> CIntMax -> [CIntMax]

Enum CIntPtr

Defined in Foreign.C.Types

Methods

succ :: CIntPtr -> CIntPtr

pred :: CIntPtr -> CIntPtr

toEnum :: Int -> CIntPtr

fromEnum :: CIntPtr -> Int

enumFrom :: CIntPtr -> [CIntPtr]

enumFromThen :: CIntPtr -> CIntPtr -> [CIntPtr]

enumFromTo :: CIntPtr -> CIntPtr -> [CIntPtr]

enumFromThenTo :: CIntPtr -> CIntPtr -> CIntPtr -> [CIntPtr]

Enum CLLong

Defined in Foreign.C.Types

Methods

succ :: CLLong -> CLLong

pred :: CLLong -> CLLong

toEnum :: Int -> CLLong

fromEnum :: CLLong -> Int

enumFrom :: CLLong -> [CLLong]

enumFromThen :: CLLong -> CLLong -> [CLLong]

enumFromTo :: CLLong -> CLLong -> [CLLong]

enumFromThenTo :: CLLong -> CLLong -> CLLong -> [CLLong]

Enum CLong

Defined in Foreign.C.Types

Methods

succ :: CLong -> CLong

pred :: CLong -> CLong

toEnum :: Int -> CLong

fromEnum :: CLong -> Int

enumFrom :: CLong -> [CLong]

enumFromThen :: CLong -> CLong -> [CLong]

enumFromTo :: CLong -> CLong -> [CLong]

enumFromThenTo :: CLong -> CLong -> CLong -> [CLong]

Enum CPtrdiff

Defined in Foreign.C.Types

Methods

succ :: CPtrdiff -> CPtrdiff

pred :: CPtrdiff -> CPtrdiff

toEnum :: Int -> CPtrdiff

fromEnum :: CPtrdiff -> Int

enumFrom :: CPtrdiff -> [CPtrdiff]

enumFromThen :: CPtrdiff -> CPtrdiff -> [CPtrdiff]

enumFromTo :: CPtrdiff -> CPtrdiff -> [CPtrdiff]

enumFromThenTo :: CPtrdiff -> CPtrdiff -> CPtrdiff -> [CPtrdiff]

Enum CSChar

Defined in Foreign.C.Types

Methods

succ :: CSChar -> CSChar

pred :: CSChar -> CSChar

toEnum :: Int -> CSChar

fromEnum :: CSChar -> Int

enumFrom :: CSChar -> [CSChar]

enumFromThen :: CSChar -> CSChar -> [CSChar]

enumFromTo :: CSChar -> CSChar -> [CSChar]

enumFromThenTo :: CSChar -> CSChar -> CSChar -> [CSChar]

Enum CSUSeconds

Defined in Foreign.C.Types

Methods

succ :: CSUSeconds -> CSUSeconds

pred :: CSUSeconds -> CSUSeconds

toEnum :: Int -> CSUSeconds

fromEnum :: CSUSeconds -> Int

enumFrom :: CSUSeconds -> [CSUSeconds]

enumFromThen :: CSUSeconds -> CSUSeconds -> [CSUSeconds]

enumFromTo :: CSUSeconds -> CSUSeconds -> [CSUSeconds]

enumFromThenTo :: CSUSeconds -> CSUSeconds -> CSUSeconds -> [CSUSeconds]

Enum CShort

Defined in Foreign.C.Types

Methods

succ :: CShort -> CShort

pred :: CShort -> CShort

toEnum :: Int -> CShort

fromEnum :: CShort -> Int

enumFrom :: CShort -> [CShort]

enumFromThen :: CShort -> CShort -> [CShort]

enumFromTo :: CShort -> CShort -> [CShort]

enumFromThenTo :: CShort -> CShort -> CShort -> [CShort]

Enum CSigAtomic

Defined in Foreign.C.Types

Methods

succ :: CSigAtomic -> CSigAtomic

pred :: CSigAtomic -> CSigAtomic

toEnum :: Int -> CSigAtomic

fromEnum :: CSigAtomic -> Int

enumFrom :: CSigAtomic -> [CSigAtomic]

enumFromThen :: CSigAtomic -> CSigAtomic -> [CSigAtomic]

enumFromTo :: CSigAtomic -> CSigAtomic -> [CSigAtomic]

enumFromThenTo :: CSigAtomic -> CSigAtomic -> CSigAtomic -> [CSigAtomic]

Enum CSize

Defined in Foreign.C.Types

Methods

succ :: CSize -> CSize

pred :: CSize -> CSize

toEnum :: Int -> CSize

fromEnum :: CSize -> Int

enumFrom :: CSize -> [CSize]

enumFromThen :: CSize -> CSize -> [CSize]

enumFromTo :: CSize -> CSize -> [CSize]

enumFromThenTo :: CSize -> CSize -> CSize -> [CSize]

Enum CTime

Defined in Foreign.C.Types

Methods

succ :: CTime -> CTime

pred :: CTime -> CTime

toEnum :: Int -> CTime

fromEnum :: CTime -> Int

enumFrom :: CTime -> [CTime]

enumFromThen :: CTime -> CTime -> [CTime]

enumFromTo :: CTime -> CTime -> [CTime]

enumFromThenTo :: CTime -> CTime -> CTime -> [CTime]

Enum CUChar

Defined in Foreign.C.Types

Methods

succ :: CUChar -> CUChar

pred :: CUChar -> CUChar

toEnum :: Int -> CUChar

fromEnum :: CUChar -> Int

enumFrom :: CUChar -> [CUChar]

enumFromThen :: CUChar -> CUChar -> [CUChar]

enumFromTo :: CUChar -> CUChar -> [CUChar]

enumFromThenTo :: CUChar -> CUChar -> CUChar -> [CUChar]

Enum CUInt

Defined in Foreign.C.Types

Methods

succ :: CUInt -> CUInt

pred :: CUInt -> CUInt

toEnum :: Int -> CUInt

fromEnum :: CUInt -> Int

enumFrom :: CUInt -> [CUInt]

enumFromThen :: CUInt -> CUInt -> [CUInt]

enumFromTo :: CUInt -> CUInt -> [CUInt]

enumFromThenTo :: CUInt -> CUInt -> CUInt -> [CUInt]

Enum CUIntMax

Defined in Foreign.C.Types

Methods

succ :: CUIntMax -> CUIntMax

pred :: CUIntMax -> CUIntMax

toEnum :: Int -> CUIntMax

fromEnum :: CUIntMax -> Int

enumFrom :: CUIntMax -> [CUIntMax]

enumFromThen :: CUIntMax -> CUIntMax -> [CUIntMax]

enumFromTo :: CUIntMax -> CUIntMax -> [CUIntMax]

enumFromThenTo :: CUIntMax -> CUIntMax -> CUIntMax -> [CUIntMax]

Enum CUIntPtr

Defined in Foreign.C.Types

Methods

succ :: CUIntPtr -> CUIntPtr

pred :: CUIntPtr -> CUIntPtr

toEnum :: Int -> CUIntPtr

fromEnum :: CUIntPtr -> Int

enumFrom :: CUIntPtr -> [CUIntPtr]

enumFromThen :: CUIntPtr -> CUIntPtr -> [CUIntPtr]

enumFromTo :: CUIntPtr -> CUIntPtr -> [CUIntPtr]

enumFromThenTo :: CUIntPtr -> CUIntPtr -> CUIntPtr -> [CUIntPtr]

Enum CULLong

Defined in Foreign.C.Types

Methods

succ :: CULLong -> CULLong

pred :: CULLong -> CULLong

toEnum :: Int -> CULLong

fromEnum :: CULLong -> Int

enumFrom :: CULLong -> [CULLong]

enumFromThen :: CULLong -> CULLong -> [CULLong]

enumFromTo :: CULLong -> CULLong -> [CULLong]

enumFromThenTo :: CULLong -> CULLong -> CULLong -> [CULLong]

Enum CULong

Defined in Foreign.C.Types

Methods

succ :: CULong -> CULong

pred :: CULong -> CULong

toEnum :: Int -> CULong

fromEnum :: CULong -> Int

enumFrom :: CULong -> [CULong]

enumFromThen :: CULong -> CULong -> [CULong]

enumFromTo :: CULong -> CULong -> [CULong]

enumFromThenTo :: CULong -> CULong -> CULong -> [CULong]

Enum CUSeconds

Defined in Foreign.C.Types

Methods

succ :: CUSeconds -> CUSeconds

pred :: CUSeconds -> CUSeconds

toEnum :: Int -> CUSeconds

fromEnum :: CUSeconds -> Int

enumFrom :: CUSeconds -> [CUSeconds]

enumFromThen :: CUSeconds -> CUSeconds -> [CUSeconds]

enumFromTo :: CUSeconds -> CUSeconds -> [CUSeconds]

enumFromThenTo :: CUSeconds -> CUSeconds -> CUSeconds -> [CUSeconds]

Enum CUShort

Defined in Foreign.C.Types

Methods

succ :: CUShort -> CUShort

pred :: CUShort -> CUShort

toEnum :: Int -> CUShort

fromEnum :: CUShort -> Int

enumFrom :: CUShort -> [CUShort]

enumFromThen :: CUShort -> CUShort -> [CUShort]

enumFromTo :: CUShort -> CUShort -> [CUShort]

enumFromThenTo :: CUShort -> CUShort -> CUShort -> [CUShort]

Enum CWchar

Defined in Foreign.C.Types

Methods

succ :: CWchar -> CWchar

pred :: CWchar -> CWchar

toEnum :: Int -> CWchar

fromEnum :: CWchar -> Int

enumFrom :: CWchar -> [CWchar]

enumFromThen :: CWchar -> CWchar -> [CWchar]

enumFromTo :: CWchar -> CWchar -> [CWchar]

enumFromThenTo :: CWchar -> CWchar -> CWchar -> [CWchar]

Enum IntPtr

Defined in Foreign.Ptr

Methods

succ :: IntPtr -> IntPtr

pred :: IntPtr -> IntPtr

toEnum :: Int -> IntPtr

fromEnum :: IntPtr -> Int

enumFrom :: IntPtr -> [IntPtr]

enumFromThen :: IntPtr -> IntPtr -> [IntPtr]

enumFromTo :: IntPtr -> IntPtr -> [IntPtr]

enumFromThenTo :: IntPtr -> IntPtr -> IntPtr -> [IntPtr]

Enum WordPtr

Defined in Foreign.Ptr

Methods

succ :: WordPtr -> WordPtr

pred :: WordPtr -> WordPtr

toEnum :: Int -> WordPtr

fromEnum :: WordPtr -> Int

enumFrom :: WordPtr -> [WordPtr]

enumFromThen :: WordPtr -> WordPtr -> [WordPtr]

enumFromTo :: WordPtr -> WordPtr -> [WordPtr]

enumFromThenTo :: WordPtr -> WordPtr -> WordPtr -> [WordPtr]

Enum ByteOrder

Since: base-4.11.0.0

Defined in GHC.ByteOrder

Methods

succ :: ByteOrder -> ByteOrder

pred :: ByteOrder -> ByteOrder

toEnum :: Int -> ByteOrder

fromEnum :: ByteOrder -> Int

enumFrom :: ByteOrder -> [ByteOrder]

enumFromThen :: ByteOrder -> ByteOrder -> [ByteOrder]

enumFromTo :: ByteOrder -> ByteOrder -> [ByteOrder]

enumFromThenTo :: ByteOrder -> ByteOrder -> ByteOrder -> [ByteOrder]

Enum Associativity

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

succ :: Associativity -> Associativity

pred :: Associativity -> Associativity

toEnum :: Int -> Associativity

fromEnum :: Associativity -> Int

enumFrom :: Associativity -> [Associativity]

enumFromThen :: Associativity -> Associativity -> [Associativity]

enumFromTo :: Associativity -> Associativity -> [Associativity]

enumFromThenTo :: Associativity -> Associativity -> Associativity -> [Associativity]

Enum DecidedStrictness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

succ :: DecidedStrictness -> DecidedStrictness

pred :: DecidedStrictness -> DecidedStrictness

toEnum :: Int -> DecidedStrictness

fromEnum :: DecidedStrictness -> Int

enumFrom :: DecidedStrictness -> [DecidedStrictness]

enumFromThen :: DecidedStrictness -> DecidedStrictness -> [DecidedStrictness]

enumFromTo :: DecidedStrictness -> DecidedStrictness -> [DecidedStrictness]

enumFromThenTo :: DecidedStrictness -> DecidedStrictness -> DecidedStrictness -> [DecidedStrictness]

Enum SourceStrictness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

succ :: SourceStrictness -> SourceStrictness

pred :: SourceStrictness -> SourceStrictness

toEnum :: Int -> SourceStrictness

fromEnum :: SourceStrictness -> Int

enumFrom :: SourceStrictness -> [SourceStrictness]

enumFromThen :: SourceStrictness -> SourceStrictness -> [SourceStrictness]

enumFromTo :: SourceStrictness -> SourceStrictness -> [SourceStrictness]

enumFromThenTo :: SourceStrictness -> SourceStrictness -> SourceStrictness -> [SourceStrictness]

Enum SourceUnpackedness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

succ :: SourceUnpackedness -> SourceUnpackedness

pred :: SourceUnpackedness -> SourceUnpackedness

toEnum :: Int -> SourceUnpackedness

fromEnum :: SourceUnpackedness -> Int

enumFrom :: SourceUnpackedness -> [SourceUnpackedness]

enumFromThen :: SourceUnpackedness -> SourceUnpackedness -> [SourceUnpackedness]

enumFromTo :: SourceUnpackedness -> SourceUnpackedness -> [SourceUnpackedness]

enumFromThenTo :: SourceUnpackedness -> SourceUnpackedness -> SourceUnpackedness -> [SourceUnpackedness]

Enum SeekMode

Since: base-4.2.0.0

Defined in GHC.IO.Device

Methods

succ :: SeekMode -> SeekMode

pred :: SeekMode -> SeekMode

toEnum :: Int -> SeekMode

fromEnum :: SeekMode -> Int

enumFrom :: SeekMode -> [SeekMode]

enumFromThen :: SeekMode -> SeekMode -> [SeekMode]

enumFromTo :: SeekMode -> SeekMode -> [SeekMode]

enumFromThenTo :: SeekMode -> SeekMode -> SeekMode -> [SeekMode]

Enum IOMode

Since: base-4.2.0.0

Defined in GHC.IO.IOMode

Methods

succ :: IOMode -> IOMode

pred :: IOMode -> IOMode

toEnum :: Int -> IOMode

fromEnum :: IOMode -> Int

enumFrom :: IOMode -> [IOMode]

enumFromThen :: IOMode -> IOMode -> [IOMode]

enumFromTo :: IOMode -> IOMode -> [IOMode]

enumFromThenTo :: IOMode -> IOMode -> IOMode -> [IOMode]

Enum Int16

Since: base-2.1

Defined in GHC.Int

Methods

succ :: Int16 -> Int16

pred :: Int16 -> Int16

toEnum :: Int -> Int16

fromEnum :: Int16 -> Int

enumFrom :: Int16 -> [Int16]

enumFromThen :: Int16 -> Int16 -> [Int16]

enumFromTo :: Int16 -> Int16 -> [Int16]

enumFromThenTo :: Int16 -> Int16 -> Int16 -> [Int16]

Enum Int32

Since: base-2.1

Defined in GHC.Int

Methods

succ :: Int32 -> Int32

pred :: Int32 -> Int32

toEnum :: Int -> Int32

fromEnum :: Int32 -> Int

enumFrom :: Int32 -> [Int32]

enumFromThen :: Int32 -> Int32 -> [Int32]

enumFromTo :: Int32 -> Int32 -> [Int32]

enumFromThenTo :: Int32 -> Int32 -> Int32 -> [Int32]

Enum Int64

Since: base-2.1

Defined in GHC.Int

Methods

succ :: Int64 -> Int64

pred :: Int64 -> Int64

toEnum :: Int -> Int64

fromEnum :: Int64 -> Int

enumFrom :: Int64 -> [Int64]

enumFromThen :: Int64 -> Int64 -> [Int64]

enumFromTo :: Int64 -> Int64 -> [Int64]

enumFromThenTo :: Int64 -> Int64 -> Int64 -> [Int64]

Enum Int8

Since: base-2.1

Defined in GHC.Int

Methods

succ :: Int8 -> Int8

pred :: Int8 -> Int8

toEnum :: Int -> Int8

fromEnum :: Int8 -> Int

enumFrom :: Int8 -> [Int8]

enumFromThen :: Int8 -> Int8 -> [Int8]

enumFromTo :: Int8 -> Int8 -> [Int8]

enumFromThenTo :: Int8 -> Int8 -> Int8 -> [Int8]

Enum DoCostCentres

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

succ :: DoCostCentres -> DoCostCentres

pred :: DoCostCentres -> DoCostCentres

toEnum :: Int -> DoCostCentres

fromEnum :: DoCostCentres -> Int

enumFrom :: DoCostCentres -> [DoCostCentres]

enumFromThen :: DoCostCentres -> DoCostCentres -> [DoCostCentres]

enumFromTo :: DoCostCentres -> DoCostCentres -> [DoCostCentres]

enumFromThenTo :: DoCostCentres -> DoCostCentres -> DoCostCentres -> [DoCostCentres]

Enum DoHeapProfile

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

succ :: DoHeapProfile -> DoHeapProfile

pred :: DoHeapProfile -> DoHeapProfile

toEnum :: Int -> DoHeapProfile

fromEnum :: DoHeapProfile -> Int

enumFrom :: DoHeapProfile -> [DoHeapProfile]

enumFromThen :: DoHeapProfile -> DoHeapProfile -> [DoHeapProfile]

enumFromTo :: DoHeapProfile -> DoHeapProfile -> [DoHeapProfile]

enumFromThenTo :: DoHeapProfile -> DoHeapProfile -> DoHeapProfile -> [DoHeapProfile]

Enum DoTrace

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

succ :: DoTrace -> DoTrace

pred :: DoTrace -> DoTrace

toEnum :: Int -> DoTrace

fromEnum :: DoTrace -> Int

enumFrom :: DoTrace -> [DoTrace]

enumFromThen :: DoTrace -> DoTrace -> [DoTrace]

enumFromTo :: DoTrace -> DoTrace -> [DoTrace]

enumFromThenTo :: DoTrace -> DoTrace -> DoTrace -> [DoTrace]

Enum GiveGCStats

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

succ :: GiveGCStats -> GiveGCStats

pred :: GiveGCStats -> GiveGCStats

toEnum :: Int -> GiveGCStats

fromEnum :: GiveGCStats -> Int

enumFrom :: GiveGCStats -> [GiveGCStats]

enumFromThen :: GiveGCStats -> GiveGCStats -> [GiveGCStats]

enumFromTo :: GiveGCStats -> GiveGCStats -> [GiveGCStats]

enumFromThenTo :: GiveGCStats -> GiveGCStats -> GiveGCStats -> [GiveGCStats]

Enum IoSubSystem

Since: base-4.9.0.0

Defined in GHC.RTS.Flags

Methods

succ :: IoSubSystem -> IoSubSystem

pred :: IoSubSystem -> IoSubSystem

toEnum :: Int -> IoSubSystem

fromEnum :: IoSubSystem -> Int

enumFrom :: IoSubSystem -> [IoSubSystem]

enumFromThen :: IoSubSystem -> IoSubSystem -> [IoSubSystem]

enumFromTo :: IoSubSystem -> IoSubSystem -> [IoSubSystem]

enumFromThenTo :: IoSubSystem -> IoSubSystem -> IoSubSystem -> [IoSubSystem]

Enum GeneralCategory

Since: base-2.1

Defined in GHC.Unicode

Methods

succ :: GeneralCategory -> GeneralCategory

pred :: GeneralCategory -> GeneralCategory

toEnum :: Int -> GeneralCategory

fromEnum :: GeneralCategory -> Int

enumFrom :: GeneralCategory -> [GeneralCategory]

enumFromThen :: GeneralCategory -> GeneralCategory -> [GeneralCategory]

enumFromTo :: GeneralCategory -> GeneralCategory -> [GeneralCategory]

enumFromThenTo :: GeneralCategory -> GeneralCategory -> GeneralCategory -> [GeneralCategory]

Enum Word16

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word16 -> Word16

pred :: Word16 -> Word16

toEnum :: Int -> Word16

fromEnum :: Word16 -> Int

enumFrom :: Word16 -> [Word16]

enumFromThen :: Word16 -> Word16 -> [Word16]

enumFromTo :: Word16 -> Word16 -> [Word16]

enumFromThenTo :: Word16 -> Word16 -> Word16 -> [Word16]

Enum Word32

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word32 -> Word32

pred :: Word32 -> Word32

toEnum :: Int -> Word32

fromEnum :: Word32 -> Int

enumFrom :: Word32 -> [Word32]

enumFromThen :: Word32 -> Word32 -> [Word32]

enumFromTo :: Word32 -> Word32 -> [Word32]

enumFromThenTo :: Word32 -> Word32 -> Word32 -> [Word32]

Enum Word64

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word64 -> Word64

pred :: Word64 -> Word64

toEnum :: Int -> Word64

fromEnum :: Word64 -> Int

enumFrom :: Word64 -> [Word64]

enumFromThen :: Word64 -> Word64 -> [Word64]

enumFromTo :: Word64 -> Word64 -> [Word64]

enumFromThenTo :: Word64 -> Word64 -> Word64 -> [Word64]

Enum Word8

Since: base-2.1

Defined in GHC.Word

Methods

succ :: Word8 -> Word8

pred :: Word8 -> Word8

toEnum :: Int -> Word8

fromEnum :: Word8 -> Int

enumFrom :: Word8 -> [Word8]

enumFromThen :: Word8 -> Word8 -> [Word8]

enumFromTo :: Word8 -> Word8 -> [Word8]

enumFromThenTo :: Word8 -> Word8 -> Word8 -> [Word8]

Enum CBlkCnt

Defined in System.Posix.Types

Methods

succ :: CBlkCnt -> CBlkCnt

pred :: CBlkCnt -> CBlkCnt

toEnum :: Int -> CBlkCnt

fromEnum :: CBlkCnt -> Int

enumFrom :: CBlkCnt -> [CBlkCnt]

enumFromThen :: CBlkCnt -> CBlkCnt -> [CBlkCnt]

enumFromTo :: CBlkCnt -> CBlkCnt -> [CBlkCnt]

enumFromThenTo :: CBlkCnt -> CBlkCnt -> CBlkCnt -> [CBlkCnt]

Enum CBlkSize

Defined in System.Posix.Types

Methods

succ :: CBlkSize -> CBlkSize

pred :: CBlkSize -> CBlkSize

toEnum :: Int -> CBlkSize

fromEnum :: CBlkSize -> Int

enumFrom :: CBlkSize -> [CBlkSize]

enumFromThen :: CBlkSize -> CBlkSize -> [CBlkSize]

enumFromTo :: CBlkSize -> CBlkSize -> [CBlkSize]

enumFromThenTo :: CBlkSize -> CBlkSize -> CBlkSize -> [CBlkSize]

Enum CCc

Defined in System.Posix.Types

Methods

succ :: CCc -> CCc

pred :: CCc -> CCc

toEnum :: Int -> CCc

fromEnum :: CCc -> Int

enumFrom :: CCc -> [CCc]

enumFromThen :: CCc -> CCc -> [CCc]

enumFromTo :: CCc -> CCc -> [CCc]

enumFromThenTo :: CCc -> CCc -> CCc -> [CCc]

Enum CClockId

Defined in System.Posix.Types

Methods

succ :: CClockId -> CClockId

pred :: CClockId -> CClockId

toEnum :: Int -> CClockId

fromEnum :: CClockId -> Int

enumFrom :: CClockId -> [CClockId]

enumFromThen :: CClockId -> CClockId -> [CClockId]

enumFromTo :: CClockId -> CClockId -> [CClockId]

enumFromThenTo :: CClockId -> CClockId -> CClockId -> [CClockId]

Enum CDev

Defined in System.Posix.Types

Methods

succ :: CDev -> CDev

pred :: CDev -> CDev

toEnum :: Int -> CDev

fromEnum :: CDev -> Int

enumFrom :: CDev -> [CDev]

enumFromThen :: CDev -> CDev -> [CDev]

enumFromTo :: CDev -> CDev -> [CDev]

enumFromThenTo :: CDev -> CDev -> CDev -> [CDev]

Enum CFsBlkCnt

Defined in System.Posix.Types

Methods

succ :: CFsBlkCnt -> CFsBlkCnt

pred :: CFsBlkCnt -> CFsBlkCnt

toEnum :: Int -> CFsBlkCnt

fromEnum :: CFsBlkCnt -> Int

enumFrom :: CFsBlkCnt -> [CFsBlkCnt]

enumFromThen :: CFsBlkCnt -> CFsBlkCnt -> [CFsBlkCnt]

enumFromTo :: CFsBlkCnt -> CFsBlkCnt -> [CFsBlkCnt]

enumFromThenTo :: CFsBlkCnt -> CFsBlkCnt -> CFsBlkCnt -> [CFsBlkCnt]

Enum CFsFilCnt

Defined in System.Posix.Types

Methods

succ :: CFsFilCnt -> CFsFilCnt

pred :: CFsFilCnt -> CFsFilCnt

toEnum :: Int -> CFsFilCnt

fromEnum :: CFsFilCnt -> Int

enumFrom :: CFsFilCnt -> [CFsFilCnt]

enumFromThen :: CFsFilCnt -> CFsFilCnt -> [CFsFilCnt]

enumFromTo :: CFsFilCnt -> CFsFilCnt -> [CFsFilCnt]

enumFromThenTo :: CFsFilCnt -> CFsFilCnt -> CFsFilCnt -> [CFsFilCnt]

Enum CGid

Defined in System.Posix.Types

Methods

succ :: CGid -> CGid

pred :: CGid -> CGid

toEnum :: Int -> CGid

fromEnum :: CGid -> Int

enumFrom :: CGid -> [CGid]

enumFromThen :: CGid -> CGid -> [CGid]

enumFromTo :: CGid -> CGid -> [CGid]

enumFromThenTo :: CGid -> CGid -> CGid -> [CGid]

Enum CId

Defined in System.Posix.Types

Methods

succ :: CId -> CId

pred :: CId -> CId

toEnum :: Int -> CId

fromEnum :: CId -> Int

enumFrom :: CId -> [CId]

enumFromThen :: CId -> CId -> [CId]

enumFromTo :: CId -> CId -> [CId]

enumFromThenTo :: CId -> CId -> CId -> [CId]

Enum CIno

Defined in System.Posix.Types

Methods

succ :: CIno -> CIno

pred :: CIno -> CIno

toEnum :: Int -> CIno

fromEnum :: CIno -> Int

enumFrom :: CIno -> [CIno]

enumFromThen :: CIno -> CIno -> [CIno]

enumFromTo :: CIno -> CIno -> [CIno]

enumFromThenTo :: CIno -> CIno -> CIno -> [CIno]

Enum CKey

Defined in System.Posix.Types

Methods

succ :: CKey -> CKey

pred :: CKey -> CKey

toEnum :: Int -> CKey

fromEnum :: CKey -> Int

enumFrom :: CKey -> [CKey]

enumFromThen :: CKey -> CKey -> [CKey]

enumFromTo :: CKey -> CKey -> [CKey]

enumFromThenTo :: CKey -> CKey -> CKey -> [CKey]

Enum CMode

Defined in System.Posix.Types

Methods

succ :: CMode -> CMode

pred :: CMode -> CMode

toEnum :: Int -> CMode

fromEnum :: CMode -> Int

enumFrom :: CMode -> [CMode]

enumFromThen :: CMode -> CMode -> [CMode]

enumFromTo :: CMode -> CMode -> [CMode]

enumFromThenTo :: CMode -> CMode -> CMode -> [CMode]

Enum CNfds

Defined in System.Posix.Types

Methods

succ :: CNfds -> CNfds

pred :: CNfds -> CNfds

toEnum :: Int -> CNfds

fromEnum :: CNfds -> Int

enumFrom :: CNfds -> [CNfds]

enumFromThen :: CNfds -> CNfds -> [CNfds]

enumFromTo :: CNfds -> CNfds -> [CNfds]

enumFromThenTo :: CNfds -> CNfds -> CNfds -> [CNfds]

Enum CNlink

Defined in System.Posix.Types

Methods

succ :: CNlink -> CNlink

pred :: CNlink -> CNlink

toEnum :: Int -> CNlink

fromEnum :: CNlink -> Int

enumFrom :: CNlink -> [CNlink]

enumFromThen :: CNlink -> CNlink -> [CNlink]

enumFromTo :: CNlink -> CNlink -> [CNlink]

enumFromThenTo :: CNlink -> CNlink -> CNlink -> [CNlink]

Enum COff

Defined in System.Posix.Types

Methods

succ :: COff -> COff

pred :: COff -> COff

toEnum :: Int -> COff

fromEnum :: COff -> Int

enumFrom :: COff -> [COff]

enumFromThen :: COff -> COff -> [COff]

enumFromTo :: COff -> COff -> [COff]

enumFromThenTo :: COff -> COff -> COff -> [COff]

Enum CPid

Defined in System.Posix.Types

Methods

succ :: CPid -> CPid

pred :: CPid -> CPid

toEnum :: Int -> CPid

fromEnum :: CPid -> Int

enumFrom :: CPid -> [CPid]

enumFromThen :: CPid -> CPid -> [CPid]

enumFromTo :: CPid -> CPid -> [CPid]

enumFromThenTo :: CPid -> CPid -> CPid -> [CPid]

Enum CRLim

Defined in System.Posix.Types

Methods

succ :: CRLim -> CRLim

pred :: CRLim -> CRLim

toEnum :: Int -> CRLim

fromEnum :: CRLim -> Int

enumFrom :: CRLim -> [CRLim]

enumFromThen :: CRLim -> CRLim -> [CRLim]

enumFromTo :: CRLim -> CRLim -> [CRLim]

enumFromThenTo :: CRLim -> CRLim -> CRLim -> [CRLim]

Enum CSocklen

Defined in System.Posix.Types

Methods

succ :: CSocklen -> CSocklen

pred :: CSocklen -> CSocklen

toEnum :: Int -> CSocklen

fromEnum :: CSocklen -> Int

enumFrom :: CSocklen -> [CSocklen]

enumFromThen :: CSocklen -> CSocklen -> [CSocklen]

enumFromTo :: CSocklen -> CSocklen -> [CSocklen]

enumFromThenTo :: CSocklen -> CSocklen -> CSocklen -> [CSocklen]

Enum CSpeed

Defined in System.Posix.Types

Methods

succ :: CSpeed -> CSpeed

pred :: CSpeed -> CSpeed

toEnum :: Int -> CSpeed

fromEnum :: CSpeed -> Int

enumFrom :: CSpeed -> [CSpeed]

enumFromThen :: CSpeed -> CSpeed -> [CSpeed]

enumFromTo :: CSpeed -> CSpeed -> [CSpeed]

enumFromThenTo :: CSpeed -> CSpeed -> CSpeed -> [CSpeed]

Enum CSsize

Defined in System.Posix.Types

Methods

succ :: CSsize -> CSsize

pred :: CSsize -> CSsize

toEnum :: Int -> CSsize

fromEnum :: CSsize -> Int

enumFrom :: CSsize -> [CSsize]

enumFromThen :: CSsize -> CSsize -> [CSsize]

enumFromTo :: CSsize -> CSsize -> [CSsize]

enumFromThenTo :: CSsize -> CSsize -> CSsize -> [CSsize]

Enum CTcflag

Defined in System.Posix.Types

Methods

succ :: CTcflag -> CTcflag

pred :: CTcflag -> CTcflag

toEnum :: Int -> CTcflag

fromEnum :: CTcflag -> Int

enumFrom :: CTcflag -> [CTcflag]

enumFromThen :: CTcflag -> CTcflag -> [CTcflag]

enumFromTo :: CTcflag -> CTcflag -> [CTcflag]

enumFromThenTo :: CTcflag -> CTcflag -> CTcflag -> [CTcflag]

Enum CUid

Defined in System.Posix.Types

Methods

succ :: CUid -> CUid

pred :: CUid -> CUid

toEnum :: Int -> CUid

fromEnum :: CUid -> Int

enumFrom :: CUid -> [CUid]

enumFromThen :: CUid -> CUid -> [CUid]

enumFromTo :: CUid -> CUid -> [CUid]

enumFromThenTo :: CUid -> CUid -> CUid -> [CUid]

Enum Fd

Defined in System.Posix.Types

Methods

succ :: Fd -> Fd

pred :: Fd -> Fd

toEnum :: Int -> Fd

fromEnum :: Fd -> Int

enumFrom :: Fd -> [Fd]

enumFromThen :: Fd -> Fd -> [Fd]

enumFromTo :: Fd -> Fd -> [Fd]

enumFromThenTo :: Fd -> Fd -> Fd -> [Fd]

Enum Ordering

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Ordering -> Ordering

pred :: Ordering -> Ordering

toEnum :: Int -> Ordering

fromEnum :: Ordering -> Int

enumFrom :: Ordering -> [Ordering]

enumFromThen :: Ordering -> Ordering -> [Ordering]

enumFromTo :: Ordering -> Ordering -> [Ordering]

enumFromThenTo :: Ordering -> Ordering -> Ordering -> [Ordering]

Enum AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

succ :: AttrOpTag -> AttrOpTag

pred :: AttrOpTag -> AttrOpTag

toEnum :: Int -> AttrOpTag

fromEnum :: AttrOpTag -> Int

enumFrom :: AttrOpTag -> [AttrOpTag]

enumFromThen :: AttrOpTag -> AttrOpTag -> [AttrOpTag]

enumFromTo :: AttrOpTag -> AttrOpTag -> [AttrOpTag]

enumFromThenTo :: AttrOpTag -> AttrOpTag -> AttrOpTag -> [AttrOpTag]

Enum GParamFlag

Defined in Data.GI.Base.GParamSpec

Methods

succ :: GParamFlag -> GParamFlag

pred :: GParamFlag -> GParamFlag

toEnum :: Int -> GParamFlag

fromEnum :: GParamFlag -> Int

enumFrom :: GParamFlag -> [GParamFlag]

enumFromThen :: GParamFlag -> GParamFlag -> [GParamFlag]

enumFromTo :: GParamFlag -> GParamFlag -> [GParamFlag]

enumFromThenTo :: GParamFlag -> GParamFlag -> GParamFlag -> [GParamFlag]

Enum I8

Defined in Data.Text.Foreign

Methods

succ :: I8 -> I8

pred :: I8 -> I8

toEnum :: Int -> I8

fromEnum :: I8 -> Int

enumFrom :: I8 -> [I8]

enumFromThen :: I8 -> I8 -> [I8]

enumFromTo :: I8 -> I8 -> [I8]

enumFromThenTo :: I8 -> I8 -> I8 -> [I8]

Enum FPFormat

Defined in Data.Text.Lazy.Builder.RealFloat

Methods

succ :: FPFormat -> FPFormat

pred :: FPFormat -> FPFormat

toEnum :: Int -> FPFormat

fromEnum :: FPFormat -> Int

enumFrom :: FPFormat -> [FPFormat]

enumFromThen :: FPFormat -> FPFormat -> [FPFormat]

enumFromTo :: FPFormat -> FPFormat -> [FPFormat]

enumFromThenTo :: FPFormat -> FPFormat -> FPFormat -> [FPFormat]

Enum Integer

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Integer -> Integer

pred :: Integer -> Integer

toEnum :: Int -> Integer

fromEnum :: Integer -> Int

enumFrom :: Integer -> [Integer]

enumFromThen :: Integer -> Integer -> [Integer]

enumFromTo :: Integer -> Integer -> [Integer]

enumFromThenTo :: Integer -> Integer -> Integer -> [Integer]

Enum Natural

Since: base-4.8.0.0

Defined in GHC.Enum

Methods

succ :: Natural -> Natural

pred :: Natural -> Natural

toEnum :: Int -> Natural

fromEnum :: Natural -> Int

enumFrom :: Natural -> [Natural]

enumFromThen :: Natural -> Natural -> [Natural]

enumFromTo :: Natural -> Natural -> [Natural]

enumFromThenTo :: Natural -> Natural -> Natural -> [Natural]

Enum ()

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: () -> ()

pred :: () -> ()

toEnum :: Int -> ()

fromEnum :: () -> Int

enumFrom :: () -> [()]

enumFromThen :: () -> () -> [()]

enumFromTo :: () -> () -> [()]

enumFromThenTo :: () -> () -> () -> [()]

Enum Bool

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Bool -> Bool

pred :: Bool -> Bool

toEnum :: Int -> Bool

fromEnum :: Bool -> Int

enumFrom :: Bool -> [Bool]

enumFromThen :: Bool -> Bool -> [Bool]

enumFromTo :: Bool -> Bool -> [Bool]

enumFromThenTo :: Bool -> Bool -> Bool -> [Bool]

Enum Char

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Char -> Char

pred :: Char -> Char

toEnum :: Int -> Char

fromEnum :: Char -> Int

enumFrom :: Char -> [Char]

enumFromThen :: Char -> Char -> [Char]

enumFromTo :: Char -> Char -> [Char]

enumFromThenTo :: Char -> Char -> Char -> [Char]

Enum Int

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Int -> Int

pred :: Int -> Int

toEnum :: Int -> Int

fromEnum :: Int -> Int

enumFrom :: Int -> [Int]

enumFromThen :: Int -> Int -> [Int]

enumFromTo :: Int -> Int -> [Int]

enumFromThenTo :: Int -> Int -> Int -> [Int]

Enum Levity

Since: base-4.16.0.0

Defined in GHC.Enum

Methods

succ :: Levity -> Levity

pred :: Levity -> Levity

toEnum :: Int -> Levity

fromEnum :: Levity -> Int

enumFrom :: Levity -> [Levity]

enumFromThen :: Levity -> Levity -> [Levity]

enumFromTo :: Levity -> Levity -> [Levity]

enumFromThenTo :: Levity -> Levity -> Levity -> [Levity]

Enum VecCount

Since: base-4.10.0.0

Defined in GHC.Enum

Methods

succ :: VecCount -> VecCount

pred :: VecCount -> VecCount

toEnum :: Int -> VecCount

fromEnum :: VecCount -> Int

enumFrom :: VecCount -> [VecCount]

enumFromThen :: VecCount -> VecCount -> [VecCount]

enumFromTo :: VecCount -> VecCount -> [VecCount]

enumFromThenTo :: VecCount -> VecCount -> VecCount -> [VecCount]

Enum VecElem

Since: base-4.10.0.0

Defined in GHC.Enum

Methods

succ :: VecElem -> VecElem

pred :: VecElem -> VecElem

toEnum :: Int -> VecElem

fromEnum :: VecElem -> Int

enumFrom :: VecElem -> [VecElem]

enumFromThen :: VecElem -> VecElem -> [VecElem]

enumFromTo :: VecElem -> VecElem -> [VecElem]

enumFromThenTo :: VecElem -> VecElem -> VecElem -> [VecElem]

Enum Word

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Word -> Word

pred :: Word -> Word

toEnum :: Int -> Word

fromEnum :: Word -> Int

enumFrom :: Word -> [Word]

enumFromThen :: Word -> Word -> [Word]

enumFromTo :: Word -> Word -> [Word]

enumFromThenTo :: Word -> Word -> Word -> [Word]

Enum a => Enum (And a)

Since: base-4.16

Defined in Data.Bits

Methods

succ :: And a -> And a

pred :: And a -> And a

toEnum :: Int -> And a

fromEnum :: And a -> Int

enumFrom :: And a -> [And a]

enumFromThen :: And a -> And a -> [And a]

enumFromTo :: And a -> And a -> [And a]

enumFromThenTo :: And a -> And a -> And a -> [And a]

Enum a => Enum (Iff a)

Since: base-4.16

Defined in Data.Bits

Methods

succ :: Iff a -> Iff a

pred :: Iff a -> Iff a

toEnum :: Int -> Iff a

fromEnum :: Iff a -> Int

enumFrom :: Iff a -> [Iff a]

enumFromThen :: Iff a -> Iff a -> [Iff a]

enumFromTo :: Iff a -> Iff a -> [Iff a]

enumFromThenTo :: Iff a -> Iff a -> Iff a -> [Iff a]

Enum a => Enum (Ior a)

Since: base-4.16

Defined in Data.Bits

Methods

succ :: Ior a -> Ior a

pred :: Ior a -> Ior a

toEnum :: Int -> Ior a

fromEnum :: Ior a -> Int

enumFrom :: Ior a -> [Ior a]

enumFromThen :: Ior a -> Ior a -> [Ior a]

enumFromTo :: Ior a -> Ior a -> [Ior a]

enumFromThenTo :: Ior a -> Ior a -> Ior a -> [Ior a]

Enum a => Enum (Xor a)

Since: base-4.16

Defined in Data.Bits

Methods

succ :: Xor a -> Xor a

pred :: Xor a -> Xor a

toEnum :: Int -> Xor a

fromEnum :: Xor a -> Int

enumFrom :: Xor a -> [Xor a]

enumFromThen :: Xor a -> Xor a -> [Xor a]

enumFromTo :: Xor a -> Xor a -> [Xor a]

enumFromThenTo :: Xor a -> Xor a -> Xor a -> [Xor a]

Enum a => Enum (Identity a)

Since: base-4.9.0.0

Defined in Data.Functor.Identity

Methods

succ :: Identity a -> Identity a

pred :: Identity a -> Identity a

toEnum :: Int -> Identity a

fromEnum :: Identity a -> Int

enumFrom :: Identity a -> [Identity a]

enumFromThen :: Identity a -> Identity a -> [Identity a]

enumFromTo :: Identity a -> Identity a -> [Identity a]

enumFromThenTo :: Identity a -> Identity a -> Identity a -> [Identity a]

(Enum a, Bounded a, Eq a) => Enum (Down a)

Swaps succ and pred of the underlying type.

Since: base-4.18.0.0

Defined in Data.Ord

Methods

succ :: Down a -> Down a

pred :: Down a -> Down a

toEnum :: Int -> Down a

fromEnum :: Down a -> Int

enumFrom :: Down a -> [Down a]

enumFromThen :: Down a -> Down a -> [Down a]

enumFromTo :: Down a -> Down a -> [Down a]

enumFromThenTo :: Down a -> Down a -> Down a -> [Down a]

Enum a => Enum (First a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

succ :: First a -> First a

pred :: First a -> First a

toEnum :: Int -> First a

fromEnum :: First a -> Int

enumFrom :: First a -> [First a]

enumFromThen :: First a -> First a -> [First a]

enumFromTo :: First a -> First a -> [First a]

enumFromThenTo :: First a -> First a -> First a -> [First a]

Enum a => Enum (Last a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

succ :: Last a -> Last a

pred :: Last a -> Last a

toEnum :: Int -> Last a

fromEnum :: Last a -> Int

enumFrom :: Last a -> [Last a]

enumFromThen :: Last a -> Last a -> [Last a]

enumFromTo :: Last a -> Last a -> [Last a]

enumFromThenTo :: Last a -> Last a -> Last a -> [Last a]

Enum a => Enum (Max a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

succ :: Max a -> Max a

pred :: Max a -> Max a

toEnum :: Int -> Max a

fromEnum :: Max a -> Int

enumFrom :: Max a -> [Max a]

enumFromThen :: Max a -> Max a -> [Max a]

enumFromTo :: Max a -> Max a -> [Max a]

enumFromThenTo :: Max a -> Max a -> Max a -> [Max a]

Enum a => Enum (Min a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

succ :: Min a -> Min a

pred :: Min a -> Min a

toEnum :: Int -> Min a

fromEnum :: Min a -> Int

enumFrom :: Min a -> [Min a]

enumFromThen :: Min a -> Min a -> [Min a]

enumFromTo :: Min a -> Min a -> [Min a]

enumFromThenTo :: Min a -> Min a -> Min a -> [Min a]

Enum a => Enum (WrappedMonoid a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

succ :: WrappedMonoid a -> WrappedMonoid a

pred :: WrappedMonoid a -> WrappedMonoid a

toEnum :: Int -> WrappedMonoid a

fromEnum :: WrappedMonoid a -> Int

enumFrom :: WrappedMonoid a -> [WrappedMonoid a]

enumFromThen :: WrappedMonoid a -> WrappedMonoid a -> [WrappedMonoid a]

enumFromTo :: WrappedMonoid a -> WrappedMonoid a -> [WrappedMonoid a]

enumFromThenTo :: WrappedMonoid a -> WrappedMonoid a -> WrappedMonoid a -> [WrappedMonoid a]

Integral a => Enum (Ratio a)

Since: base-2.0.1

Defined in GHC.Real

Methods

succ :: Ratio a -> Ratio a

pred :: Ratio a -> Ratio a

toEnum :: Int -> Ratio a

fromEnum :: Ratio a -> Int

enumFrom :: Ratio a -> [Ratio a]

enumFromThen :: Ratio a -> Ratio a -> [Ratio a]

enumFromTo :: Ratio a -> Ratio a -> [Ratio a]

enumFromThenTo :: Ratio a -> Ratio a -> Ratio a -> [Ratio a]

Enum a => Enum (Solo a)

Defined in GHC.Enum

Methods

succ :: Solo a -> Solo a

pred :: Solo a -> Solo a

toEnum :: Int -> Solo a

fromEnum :: Solo a -> Int

enumFrom :: Solo a -> [Solo a]

enumFromThen :: Solo a -> Solo a -> [Solo a]

enumFromTo :: Solo a -> Solo a -> [Solo a]

enumFromThenTo :: Solo a -> Solo a -> Solo a -> [Solo a]

Enum (Fixed a)

Recall that, for numeric types, succ and pred typically add and subtract 1, respectively. This is not true in the case of Fixed, whose successor and predecessor functions intuitively return the "next" and "previous" values in the enumeration. The results of these functions thus depend on the resolution of the Fixed value. For example, when enumerating values of resolution 10^-3 of type Milli = Fixed E3,

  succ (0.000 :: Milli) == 0.001

and likewise

  pred (0.000 :: Milli) == -0.001

In other words, succ and pred increment and decrement a fixed-precision value by the least amount such that the value's resolution is unchanged. For example, 10^-12 is the smallest (positive) amount that can be added to a value of type Pico = Fixed E12 without changing its resolution, and so

  succ (0.000000000000 :: Pico) == 0.000000000001

and similarly

  pred (0.000000000000 :: Pico) == -0.000000000001

This is worth bearing in mind when defining Fixed arithmetic sequences. In particular, you may be forgiven for thinking the sequence

  [1..10] :: [Pico]

evaluates to [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] :: [Pico].

However, this is not true. On the contrary, similarly to the above implementations of succ and pred, enumFromTo :: Pico -> Pico -> [Pico] has a "step size" of 10^-12. Hence, the list [1..10] :: [Pico] has the form

  [1.000000000000, 1.00000000001, 1.00000000002, ..., 10.000000000000]

and contains 9 * 10^12 + 1 values.

Since: base-2.1

Defined in Data.Fixed

Methods

succ :: Fixed a -> Fixed a

pred :: Fixed a -> Fixed a

toEnum :: Int -> Fixed a

fromEnum :: Fixed a -> Int

enumFrom :: Fixed a -> [Fixed a]

enumFromThen :: Fixed a -> Fixed a -> [Fixed a]

enumFromTo :: Fixed a -> Fixed a -> [Fixed a]

enumFromThenTo :: Fixed a -> Fixed a -> Fixed a -> [Fixed a]

Enum (Proxy s)

Since: base-4.7.0.0

Defined in Data.Proxy

Methods

succ :: Proxy s -> Proxy s

pred :: Proxy s -> Proxy s

toEnum :: Int -> Proxy s

fromEnum :: Proxy s -> Int

enumFrom :: Proxy s -> [Proxy s]

enumFromThen :: Proxy s -> Proxy s -> [Proxy s]

enumFromTo :: Proxy s -> Proxy s -> [Proxy s]

enumFromThenTo :: Proxy s -> Proxy s -> Proxy s -> [Proxy s]

Enum a => Enum (Const a b)

Since: base-4.9.0.0

Defined in Data.Functor.Const

Methods

succ :: Const a b -> Const a b

pred :: Const a b -> Const a b

toEnum :: Int -> Const a b

fromEnum :: Const a b -> Int

enumFrom :: Const a b -> [Const a b]

enumFromThen :: Const a b -> Const a b -> [Const a b]

enumFromTo :: Const a b -> Const a b -> [Const a b]

enumFromThenTo :: Const a b -> Const a b -> Const a b -> [Const a b]

Enum (f a) => Enum (Ap f a)

Since: base-4.12.0.0

Defined in Data.Monoid

Methods

succ :: Ap f a -> Ap f a

pred :: Ap f a -> Ap f a

toEnum :: Int -> Ap f a

fromEnum :: Ap f a -> Int

enumFrom :: Ap f a -> [Ap f a]

enumFromThen :: Ap f a -> Ap f a -> [Ap f a]

enumFromTo :: Ap f a -> Ap f a -> [Ap f a]

enumFromThenTo :: Ap f a -> Ap f a -> Ap f a -> [Ap f a]

Coercible a b => Enum (Coercion a b)

Since: base-4.7.0.0

Defined in Data.Type.Coercion

Methods

succ :: Coercion a b -> Coercion a b

pred :: Coercion a b -> Coercion a b

toEnum :: Int -> Coercion a b

fromEnum :: Coercion a b -> Int

enumFrom :: Coercion a b -> [Coercion a b]

enumFromThen :: Coercion a b -> Coercion a b -> [Coercion a b]

enumFromTo :: Coercion a b -> Coercion a b -> [Coercion a b]

enumFromThenTo :: Coercion a b -> Coercion a b -> Coercion a b -> [Coercion a b]

a ~ b => Enum (a :~: b)

Since: base-4.7.0.0

Defined in Data.Type.Equality

Methods

succ :: (a :~: b) -> a :~: b

pred :: (a :~: b) -> a :~: b

toEnum :: Int -> a :~: b

fromEnum :: (a :~: b) -> Int

enumFrom :: (a :~: b) -> [a :~: b]

enumFromThen :: (a :~: b) -> (a :~: b) -> [a :~: b]

enumFromTo :: (a :~: b) -> (a :~: b) -> [a :~: b]

enumFromThenTo :: (a :~: b) -> (a :~: b) -> (a :~: b) -> [a :~: b]

a ~~ b => Enum (a :~~: b)

Since: base-4.10.0.0

Defined in Data.Type.Equality

Methods

succ :: (a :~~: b) -> a :~~: b

pred :: (a :~~: b) -> a :~~: b

toEnum :: Int -> a :~~: b

fromEnum :: (a :~~: b) -> Int

enumFrom :: (a :~~: b) -> [a :~~: b]

enumFromThen :: (a :~~: b) -> (a :~~: b) -> [a :~~: b]

enumFromTo :: (a :~~: b) -> (a :~~: b) -> [a :~~: b]

enumFromThenTo :: (a :~~: b) -> (a :~~: b) -> (a :~~: b) -> [a :~~: b]

Enum (f (g a)) => Enum (Compose f g a)

Since: base-4.19.0.0

Defined in Data.Functor.Compose

Methods

succ :: Compose f g a -> Compose f g a

pred :: Compose f g a -> Compose f g a

toEnum :: Int -> Compose f g a

fromEnum :: Compose f g a -> Int

enumFrom :: Compose f g a -> [Compose f g a]

enumFromThen :: Compose f g a -> Compose f g a -> [Compose f g a]

enumFromTo :: Compose f g a -> Compose f g a -> [Compose f g a]

enumFromThenTo :: Compose f g a -> Compose f g a -> Compose f g a -> [Compose f g a]

class Show a where

Conversion of values to readable Strings.

Derived instances of Show have the following properties, which are compatible with derived instances of Read:

• The result of show is a syntactically correct Haskell expression containing only constants, given the fixity declarations in force at the point where the type is declared. It contains only the constructor names defined in the data type, parentheses, and spaces. When labelled constructor fields are used, braces, commas, field names, and equal signs are also used.
• If the constructor is defined to be an infix operator, then showsPrec will produce infix applications of the constructor.
• the representation will be enclosed in parentheses if the precedence of the top-level constructor in x is less than d (associativity is ignored). Thus, if d is 0 then the result is never surrounded in parentheses; if d is 11 it is always surrounded in parentheses, unless it is an atomic expression.
• If the constructor is defined using record syntax, then show will produce the record-syntax form, with the fields given in the same order as the original declaration.

For example, given the declarations

infixr 5 :^:
data Tree a =  Leaf a  |  Tree a :^: Tree a

the derived instance of Show is equivalent to

instance (Show a) => Show (Tree a) where

       showsPrec d (Leaf m) = showParen (d > app_prec) $
            showString "Leaf " . showsPrec (app_prec+1) m
         where app_prec = 10

       showsPrec d (u :^: v) = showParen (d > up_prec) $
            showsPrec (up_prec+1) u .
            showString " :^: "      .
            showsPrec (up_prec+1) v
         where up_prec = 5

Note that right-associativity of :^: is ignored. For example,

• show (Leaf 1 :^: Leaf 2 :^: Leaf 3) produces the string "Leaf 1 :^: (Leaf 2 :^: Leaf 3)".

Minimal complete definition

showsPrec | show

Methods

showsPrec

Arguments

:: Int

the operator precedence of the enclosing context (a number from 0 to 11). Function application has precedence 10.

-> a

the value to be converted to a String

-> ShowS

Convert a value to a readable String.

showsPrec should satisfy the law

showsPrec d x r ++ s  ==  showsPrec d x (r ++ s)

Derived instances of Read and Show satisfy the following:

• (x,"") is an element of (readsPrec d (showsPrec d x "")).

That is, readsPrec parses the string produced by showsPrec, and delivers the value that showsPrec started with.

show :: a -> String

A specialised variant of showsPrec, using precedence context zero, and returning an ordinary String.

showList :: [a] -> ShowS

The method showList is provided to allow the programmer to give a specialised way of showing lists of values. For example, this is used by the predefined Show instance of the Char type, where values of type String should be shown in double quotes, rather than between square brackets.

Instances

Show NestedAtomically

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> NestedAtomically -> ShowS

show :: NestedAtomically -> String

showList :: [NestedAtomically] -> ShowS

Show NoMatchingContinuationPrompt

Since: base-4.18

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> NoMatchingContinuationPrompt -> ShowS

show :: NoMatchingContinuationPrompt -> String

showList :: [NoMatchingContinuationPrompt] -> ShowS

Show NoMethodError

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> NoMethodError -> ShowS

show :: NoMethodError -> String

showList :: [NoMethodError] -> ShowS

Show NonTermination

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> NonTermination -> ShowS

show :: NonTermination -> String

showList :: [NonTermination] -> ShowS

Show PatternMatchFail

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> PatternMatchFail -> ShowS

show :: PatternMatchFail -> String

showList :: [PatternMatchFail] -> ShowS

Show RecConError

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> RecConError -> ShowS

show :: RecConError -> String

showList :: [RecConError] -> ShowS

Show RecSelError

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> RecSelError -> ShowS

show :: RecSelError -> String

showList :: [RecSelError] -> ShowS

Show RecUpdError

Since: base-4.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> RecUpdError -> ShowS

show :: RecUpdError -> String

showList :: [RecUpdError] -> ShowS

Show TypeError

Since: base-4.9.0.0

Defined in Control.Exception.Base

Methods

showsPrec :: Int -> TypeError -> ShowS

show :: TypeError -> String

showList :: [TypeError] -> ShowS

Show ByteArray

Since: base-4.17.0.0

Defined in Data.Array.Byte

Methods

showsPrec :: Int -> ByteArray -> ShowS

show :: ByteArray -> String

showList :: [ByteArray] -> ShowS

Show Constr

Since: base-4.0.0.0

Defined in Data.Data

Methods

showsPrec :: Int -> Constr -> ShowS

show :: Constr -> String

showList :: [Constr] -> ShowS

Show ConstrRep

Since: base-4.0.0.0

Defined in Data.Data

Methods

showsPrec :: Int -> ConstrRep -> ShowS

show :: ConstrRep -> String

showList :: [ConstrRep] -> ShowS

Show DataRep

Since: base-4.0.0.0

Defined in Data.Data

Methods

showsPrec :: Int -> DataRep -> ShowS

show :: DataRep -> String

showList :: [DataRep] -> ShowS

Show DataType

Since: base-4.0.0.0

Defined in Data.Data

Methods

showsPrec :: Int -> DataType -> ShowS

show :: DataType -> String

showList :: [DataType] -> ShowS

Show Fixity

Since: base-4.0.0.0

Defined in Data.Data

Methods

showsPrec :: Int -> Fixity -> ShowS

show :: Fixity -> String

showList :: [Fixity] -> ShowS

Show Dynamic

Since: base-2.1

Defined in Data.Dynamic

Methods

showsPrec :: Int -> Dynamic -> ShowS

show :: Dynamic -> String

showList :: [Dynamic] -> ShowS

Show SomeTypeRep

Since: base-4.10.0.0

Defined in Data.Typeable.Internal

Methods

showsPrec :: Int -> SomeTypeRep -> ShowS

show :: SomeTypeRep -> String

showList :: [SomeTypeRep] -> ShowS

Show Version

Since: base-2.1

Defined in Data.Version

Methods

showsPrec :: Int -> Version -> ShowS

show :: Version -> String

showList :: [Version] -> ShowS

Show CBool

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CBool -> ShowS

show :: CBool -> String

showList :: [CBool] -> ShowS

Show CChar

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CChar -> ShowS

show :: CChar -> String

showList :: [CChar] -> ShowS

Show CClock

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CClock -> ShowS

show :: CClock -> String

showList :: [CClock] -> ShowS

Show CDouble

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CDouble -> ShowS

show :: CDouble -> String

showList :: [CDouble] -> ShowS

Show CFloat

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CFloat -> ShowS

show :: CFloat -> String

showList :: [CFloat] -> ShowS

Show CInt

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CInt -> ShowS

show :: CInt -> String

showList :: [CInt] -> ShowS

Show CIntMax

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CIntMax -> ShowS

show :: CIntMax -> String

showList :: [CIntMax] -> ShowS

Show CIntPtr

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CIntPtr -> ShowS

show :: CIntPtr -> String

showList :: [CIntPtr] -> ShowS

Show CLLong

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CLLong -> ShowS

show :: CLLong -> String

showList :: [CLLong] -> ShowS

Show CLong

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CLong -> ShowS

show :: CLong -> String

showList :: [CLong] -> ShowS

Show CPtrdiff

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CPtrdiff -> ShowS

show :: CPtrdiff -> String

showList :: [CPtrdiff] -> ShowS

Show CSChar

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CSChar -> ShowS

show :: CSChar -> String

showList :: [CSChar] -> ShowS

Show CSUSeconds

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CSUSeconds -> ShowS

show :: CSUSeconds -> String

showList :: [CSUSeconds] -> ShowS

Show CShort

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CShort -> ShowS

show :: CShort -> String

showList :: [CShort] -> ShowS

Show CSigAtomic

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CSigAtomic -> ShowS

show :: CSigAtomic -> String

showList :: [CSigAtomic] -> ShowS

Show CSize

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CSize -> ShowS

show :: CSize -> String

showList :: [CSize] -> ShowS

Show CTime

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CTime -> ShowS

show :: CTime -> String

showList :: [CTime] -> ShowS

Show CUChar

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUChar -> ShowS

show :: CUChar -> String

showList :: [CUChar] -> ShowS

Show CUInt

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUInt -> ShowS

show :: CUInt -> String

showList :: [CUInt] -> ShowS

Show CUIntMax

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUIntMax -> ShowS

show :: CUIntMax -> String

showList :: [CUIntMax] -> ShowS

Show CUIntPtr

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUIntPtr -> ShowS

show :: CUIntPtr -> String

showList :: [CUIntPtr] -> ShowS

Show CULLong

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CULLong -> ShowS

show :: CULLong -> String

showList :: [CULLong] -> ShowS

Show CULong

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CULong -> ShowS

show :: CULong -> String

showList :: [CULong] -> ShowS

Show CUSeconds

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUSeconds -> ShowS

show :: CUSeconds -> String

showList :: [CUSeconds] -> ShowS

Show CUShort

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CUShort -> ShowS

show :: CUShort -> String

showList :: [CUShort] -> ShowS

Show CWchar

Defined in Foreign.C.Types

Methods

showsPrec :: Int -> CWchar -> ShowS

show :: CWchar -> String

showList :: [CWchar] -> ShowS

Show IntPtr

Defined in Foreign.Ptr

Methods

showsPrec :: Int -> IntPtr -> ShowS

show :: IntPtr -> String

showList :: [IntPtr] -> ShowS

Show WordPtr

Defined in Foreign.Ptr

Methods

showsPrec :: Int -> WordPtr -> ShowS

show :: WordPtr -> String

showList :: [WordPtr] -> ShowS

Show Void

Since: base-4.8.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> Void -> ShowS

show :: Void -> String

showList :: [Void] -> ShowS

Show ByteOrder

Since: base-4.11.0.0

Defined in GHC.ByteOrder

Methods

showsPrec :: Int -> ByteOrder -> ShowS

show :: ByteOrder -> String

showList :: [ByteOrder] -> ShowS

Show BlockReason

Since: base-4.3.0.0

Defined in GHC.Conc.Sync

Methods

showsPrec :: Int -> BlockReason -> ShowS

show :: BlockReason -> String

showList :: [BlockReason] -> ShowS

Show ThreadId

Since: base-4.2.0.0

Defined in GHC.Conc.Sync

Methods

showsPrec :: Int -> ThreadId -> ShowS

show :: ThreadId -> String

showList :: [ThreadId] -> ShowS

Show ThreadStatus

Since: base-4.3.0.0

Defined in GHC.Conc.Sync

Methods

showsPrec :: Int -> ThreadStatus -> ShowS

show :: ThreadStatus -> String

showList :: [ThreadStatus] -> ShowS

Show ErrorCall

Since: base-4.0.0.0

Defined in GHC.Exception

Methods

showsPrec :: Int -> ErrorCall -> ShowS

show :: ErrorCall -> String

showList :: [ErrorCall] -> ShowS

Show ArithException

Since: base-4.0.0.0

Defined in GHC.Exception.Type

Methods

showsPrec :: Int -> ArithException -> ShowS

show :: ArithException -> String

showList :: [ArithException] -> ShowS

Show SomeException

Since: base-3.0

Defined in GHC.Exception.Type

Methods

showsPrec :: Int -> SomeException -> ShowS

show :: SomeException -> String

showList :: [SomeException] -> ShowS

Show Fingerprint

Since: base-4.7.0.0

Defined in GHC.Fingerprint.Type

Methods

showsPrec :: Int -> Fingerprint -> ShowS

show :: Fingerprint -> String

showList :: [Fingerprint] -> ShowS

Show Associativity

Since: base-4.6.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> Associativity -> ShowS

show :: Associativity -> String

showList :: [Associativity] -> ShowS

Show DecidedStrictness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> DecidedStrictness -> ShowS

show :: DecidedStrictness -> String

showList :: [DecidedStrictness] -> ShowS

Show Fixity

Since: base-4.6.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> Fixity -> ShowS

show :: Fixity -> String

showList :: [Fixity] -> ShowS

Show SourceStrictness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> SourceStrictness -> ShowS

show :: SourceStrictness -> String

showList :: [SourceStrictness] -> ShowS

Show SourceUnpackedness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> SourceUnpackedness -> ShowS

show :: SourceUnpackedness -> String

showList :: [SourceUnpackedness] -> ShowS

Show MaskingState

Since: base-4.3.0.0

Defined in GHC.IO

Methods

showsPrec :: Int -> MaskingState -> ShowS

show :: MaskingState -> String

showList :: [MaskingState] -> ShowS

Show SeekMode

Since: base-4.2.0.0

Defined in GHC.IO.Device

Methods

showsPrec :: Int -> SeekMode -> ShowS

show :: SeekMode -> String

showList :: [SeekMode] -> ShowS

Show CodingFailureMode

Since: base-4.4.0.0

Defined in GHC.IO.Encoding.Failure

Methods

showsPrec :: Int -> CodingFailureMode -> ShowS

show :: CodingFailureMode -> String

showList :: [CodingFailureMode] -> ShowS

Show CodingProgress

Since: base-4.4.0.0

Defined in GHC.IO.Encoding.Types

Methods

showsPrec :: Int -> CodingProgress -> ShowS

show :: CodingProgress -> String

showList :: [CodingProgress] -> ShowS

Show TextEncoding

Since: base-4.3.0.0

Defined in GHC.IO.Encoding.Types

Methods

showsPrec :: Int -> TextEncoding -> ShowS

show :: TextEncoding -> String

showList :: [TextEncoding] -> ShowS

Show AllocationLimitExceeded

Since: base-4.7.1.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> AllocationLimitExceeded -> ShowS

show :: AllocationLimitExceeded -> String

showList :: [AllocationLimitExceeded] -> ShowS

Show ArrayException

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> ArrayException -> ShowS

show :: ArrayException -> String

showList :: [ArrayException] -> ShowS

Show AssertionFailed

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> AssertionFailed -> ShowS

show :: AssertionFailed -> String

showList :: [AssertionFailed] -> ShowS

Show AsyncException

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> AsyncException -> ShowS

show :: AsyncException -> String

showList :: [AsyncException] -> ShowS

Show BlockedIndefinitelyOnMVar

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> BlockedIndefinitelyOnMVar -> ShowS

show :: BlockedIndefinitelyOnMVar -> String

showList :: [BlockedIndefinitelyOnMVar] -> ShowS

Show BlockedIndefinitelyOnSTM

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> BlockedIndefinitelyOnSTM -> ShowS

show :: BlockedIndefinitelyOnSTM -> String

showList :: [BlockedIndefinitelyOnSTM] -> ShowS

Show CompactionFailed

Since: base-4.10.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> CompactionFailed -> ShowS

show :: CompactionFailed -> String

showList :: [CompactionFailed] -> ShowS

Show Deadlock

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> Deadlock -> ShowS

show :: Deadlock -> String

showList :: [Deadlock] -> ShowS

Show ExitCode

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> ExitCode -> ShowS

show :: ExitCode -> String

showList :: [ExitCode] -> ShowS

Show FixIOException

Since: base-4.11.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> FixIOException -> ShowS

show :: FixIOException -> String

showList :: [FixIOException] -> ShowS

Show IOErrorType

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> IOErrorType -> ShowS

show :: IOErrorType -> String

showList :: [IOErrorType] -> ShowS

Show IOException

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> IOException -> ShowS

show :: IOException -> String

showList :: [IOException] -> ShowS

Show SomeAsyncException

Since: base-4.7.0.0

Defined in GHC.IO.Exception

Methods

showsPrec :: Int -> SomeAsyncException -> ShowS

show :: SomeAsyncException -> String

showList :: [SomeAsyncException] -> ShowS

Show FD

Since: base-4.1.0.0

Defined in GHC.IO.FD

Methods

showsPrec :: Int -> FD -> ShowS

show :: FD -> String

showList :: [FD] -> ShowS

Show HandlePosn

Since: base-4.1.0.0

Defined in GHC.IO.Handle

Methods

showsPrec :: Int -> HandlePosn -> ShowS

show :: HandlePosn -> String

showList :: [HandlePosn] -> ShowS

Show BufferMode

Since: base-4.2.0.0

Defined in GHC.IO.Handle.Types

Methods

showsPrec :: Int -> BufferMode -> ShowS

show :: BufferMode -> String

showList :: [BufferMode] -> ShowS

Show Handle

Since: base-4.1.0.0

Defined in GHC.IO.Handle.Types

Methods

showsPrec :: Int -> Handle -> ShowS

show :: Handle -> String

showList :: [Handle] -> ShowS

Show HandleType

Since: base-4.1.0.0

Defined in GHC.IO.Handle.Types

Methods

showsPrec :: Int -> HandleType -> ShowS

show :: HandleType -> String

showList :: [HandleType] -> ShowS

Show Newline

Since: base-4.3.0.0

Defined in GHC.IO.Handle.Types

Methods

showsPrec :: Int -> Newline -> ShowS

show :: Newline -> String

showList :: [Newline] -> ShowS

Show NewlineMode

Since: base-4.3.0.0

Defined in GHC.IO.Handle.Types

Methods

showsPrec :: Int -> NewlineMode -> ShowS

show :: NewlineMode -> String

showList :: [NewlineMode] -> ShowS

Show IOMode

Since: base-4.2.0.0

Defined in GHC.IO.IOMode

Methods

showsPrec :: Int -> IOMode -> ShowS

show :: IOMode -> String

showList :: [IOMode] -> ShowS

Show IOPortException

Defined in GHC.IOPort

Methods

showsPrec :: Int -> IOPortException -> ShowS

show :: IOPortException -> String

showList :: [IOPortException] -> ShowS

Show InfoProv

Defined in GHC.InfoProv

Methods

showsPrec :: Int -> InfoProv -> ShowS

show :: InfoProv -> String

showList :: [InfoProv] -> ShowS

Show Int16

Since: base-2.1

Defined in GHC.Int

Methods

showsPrec :: Int -> Int16 -> ShowS

show :: Int16 -> String

showList :: [Int16] -> ShowS

Show Int32

Since: base-2.1

Defined in GHC.Int

Methods

showsPrec :: Int -> Int32 -> ShowS

show :: Int32 -> String

showList :: [Int32] -> ShowS

Show Int64

Since: base-2.1

Defined in GHC.Int

Methods

showsPrec :: Int -> Int64 -> ShowS

show :: Int64 -> String

showList :: [Int64] -> ShowS

Show Int8

Since: base-2.1

Defined in GHC.Int

Methods

showsPrec :: Int -> Int8 -> ShowS

show :: Int8 -> String

showList :: [Int8] -> ShowS

Show CCFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> CCFlags -> ShowS

show :: CCFlags -> String

showList :: [CCFlags] -> ShowS

Show ConcFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> ConcFlags -> ShowS

show :: ConcFlags -> String

showList :: [ConcFlags] -> ShowS

Show DebugFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> DebugFlags -> ShowS

show :: DebugFlags -> String

showList :: [DebugFlags] -> ShowS

Show DoCostCentres

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> DoCostCentres -> ShowS

show :: DoCostCentres -> String

showList :: [DoCostCentres] -> ShowS

Show DoHeapProfile

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> DoHeapProfile -> ShowS

show :: DoHeapProfile -> String

showList :: [DoHeapProfile] -> ShowS

Show DoTrace

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> DoTrace -> ShowS

show :: DoTrace -> String

showList :: [DoTrace] -> ShowS

Show GCFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> GCFlags -> ShowS

show :: GCFlags -> String

showList :: [GCFlags] -> ShowS

Show GiveGCStats

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> GiveGCStats -> ShowS

show :: GiveGCStats -> String

showList :: [GiveGCStats] -> ShowS

Show IoSubSystem

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> IoSubSystem -> ShowS

show :: IoSubSystem -> String

showList :: [IoSubSystem] -> ShowS

Show MiscFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> MiscFlags -> ShowS

show :: MiscFlags -> String

showList :: [MiscFlags] -> ShowS

Show ParFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> ParFlags -> ShowS

show :: ParFlags -> String

showList :: [ParFlags] -> ShowS

Show ProfFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> ProfFlags -> ShowS

show :: ProfFlags -> String

showList :: [ProfFlags] -> ShowS

Show RTSFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> RTSFlags -> ShowS

show :: RTSFlags -> String

showList :: [RTSFlags] -> ShowS

Show TickyFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> TickyFlags -> ShowS

show :: TickyFlags -> String

showList :: [TickyFlags] -> ShowS

Show TraceFlags

Since: base-4.8.0.0

Defined in GHC.RTS.Flags

Methods

showsPrec :: Int -> TraceFlags -> ShowS

show :: TraceFlags -> String

showList :: [TraceFlags] -> ShowS

Show FractionalExponentBase

Defined in GHC.Real

Methods

showsPrec :: Int -> FractionalExponentBase -> ShowS

show :: FractionalExponentBase -> String

showList :: [FractionalExponentBase] -> ShowS

Show StackEntry

Defined in GHC.Stack.CloneStack

Methods

showsPrec :: Int -> StackEntry -> ShowS

show :: StackEntry -> String

showList :: [StackEntry] -> ShowS

Show CallStack

Since: base-4.9.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> CallStack -> ShowS

show :: CallStack -> String

showList :: [CallStack] -> ShowS

Show SrcLoc

Since: base-4.9.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> SrcLoc -> ShowS

show :: SrcLoc -> String

showList :: [SrcLoc] -> ShowS

Show StaticPtrInfo

Since: base-4.8.0.0

Defined in GHC.StaticPtr

Methods

showsPrec :: Int -> StaticPtrInfo -> ShowS

show :: StaticPtrInfo -> String

showList :: [StaticPtrInfo] -> ShowS

Show GCDetails

Since: base-4.10.0.0

Defined in GHC.Stats

Methods

showsPrec :: Int -> GCDetails -> ShowS

show :: GCDetails -> String

showList :: [GCDetails] -> ShowS

Show RTSStats

Since: base-4.10.0.0

Defined in GHC.Stats

Methods

showsPrec :: Int -> RTSStats -> ShowS

show :: RTSStats -> String

showList :: [RTSStats] -> ShowS

Show SomeChar

Defined in GHC.TypeLits

Methods

showsPrec :: Int -> SomeChar -> ShowS

show :: SomeChar -> String

showList :: [SomeChar] -> ShowS

Show SomeSymbol

Since: base-4.7.0.0

Defined in GHC.TypeLits

Methods

showsPrec :: Int -> SomeSymbol -> ShowS

show :: SomeSymbol -> String

showList :: [SomeSymbol] -> ShowS

Show SomeNat

Since: base-4.7.0.0

Defined in GHC.TypeNats

Methods

showsPrec :: Int -> SomeNat -> ShowS

show :: SomeNat -> String

showList :: [SomeNat] -> ShowS

Show GeneralCategory

Since: base-2.1

Defined in GHC.Unicode

Methods

showsPrec :: Int -> GeneralCategory -> ShowS

show :: GeneralCategory -> String

showList :: [GeneralCategory] -> ShowS

Show Word16

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word16 -> ShowS

show :: Word16 -> String

showList :: [Word16] -> ShowS

Show Word32

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word32 -> ShowS

show :: Word32 -> String

showList :: [Word32] -> ShowS

Show Word64

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word64 -> ShowS

show :: Word64 -> String

showList :: [Word64] -> ShowS

Show Word8

Since: base-2.1

Defined in GHC.Word

Methods

showsPrec :: Int -> Word8 -> ShowS

show :: Word8 -> String

showList :: [Word8] -> ShowS

Show CBlkCnt

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CBlkCnt -> ShowS

show :: CBlkCnt -> String

showList :: [CBlkCnt] -> ShowS

Show CBlkSize

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CBlkSize -> ShowS

show :: CBlkSize -> String

showList :: [CBlkSize] -> ShowS

Show CCc

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CCc -> ShowS

show :: CCc -> String

showList :: [CCc] -> ShowS

Show CClockId

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CClockId -> ShowS

show :: CClockId -> String

showList :: [CClockId] -> ShowS

Show CDev

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CDev -> ShowS

show :: CDev -> String

showList :: [CDev] -> ShowS

Show CFsBlkCnt

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CFsBlkCnt -> ShowS

show :: CFsBlkCnt -> String

showList :: [CFsBlkCnt] -> ShowS

Show CFsFilCnt

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CFsFilCnt -> ShowS

show :: CFsFilCnt -> String

showList :: [CFsFilCnt] -> ShowS

Show CGid

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CGid -> ShowS

show :: CGid -> String

showList :: [CGid] -> ShowS

Show CId

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CId -> ShowS

show :: CId -> String

showList :: [CId] -> ShowS

Show CIno

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CIno -> ShowS

show :: CIno -> String

showList :: [CIno] -> ShowS

Show CKey

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CKey -> ShowS

show :: CKey -> String

showList :: [CKey] -> ShowS

Show CMode

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CMode -> ShowS

show :: CMode -> String

showList :: [CMode] -> ShowS

Show CNfds

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CNfds -> ShowS

show :: CNfds -> String

showList :: [CNfds] -> ShowS

Show CNlink

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CNlink -> ShowS

show :: CNlink -> String

showList :: [CNlink] -> ShowS

Show COff

Defined in System.Posix.Types

Methods

showsPrec :: Int -> COff -> ShowS

show :: COff -> String

showList :: [COff] -> ShowS

Show CPid

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CPid -> ShowS

show :: CPid -> String

showList :: [CPid] -> ShowS

Show CRLim

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CRLim -> ShowS

show :: CRLim -> String

showList :: [CRLim] -> ShowS

Show CSocklen

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CSocklen -> ShowS

show :: CSocklen -> String

showList :: [CSocklen] -> ShowS

Show CSpeed

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CSpeed -> ShowS

show :: CSpeed -> String

showList :: [CSpeed] -> ShowS

Show CSsize

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CSsize -> ShowS

show :: CSsize -> String

showList :: [CSsize] -> ShowS

Show CTcflag

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CTcflag -> ShowS

show :: CTcflag -> String

showList :: [CTcflag] -> ShowS

Show CTimer

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CTimer -> ShowS

show :: CTimer -> String

showList :: [CTimer] -> ShowS

Show CUid

Defined in System.Posix.Types

Methods

showsPrec :: Int -> CUid -> ShowS

show :: CUid -> String

showList :: [CUid] -> ShowS

Show Fd

Defined in System.Posix.Types

Methods

showsPrec :: Int -> Fd -> ShowS

show :: Fd -> String

showList :: [Fd] -> ShowS

Show Timeout

Since: base-4.0

Defined in System.Timeout

Methods

showsPrec :: Int -> Timeout -> ShowS

show :: Timeout -> String

showList :: [Timeout] -> ShowS

Show Lexeme

Since: base-2.1

Defined in Text.Read.Lex

Methods

showsPrec :: Int -> Lexeme -> ShowS

show :: Lexeme -> String

showList :: [Lexeme] -> ShowS

Show Number

Since: base-4.6.0.0

Defined in Text.Read.Lex

Methods

showsPrec :: Int -> Number -> ShowS

show :: Number -> String

showList :: [Number] -> ShowS

Show FormatMode

Defined in Data.ByteString.Builder.RealFloat

Methods

showsPrec :: Int -> FormatMode -> ShowS

show :: FormatMode -> String

showList :: [FormatMode] -> ShowS

Show ByteString

Defined in Data.ByteString.Internal.Type

Methods

showsPrec :: Int -> ByteString -> ShowS

show :: ByteString -> String

showList :: [ByteString] -> ShowS

Show SizeOverflowException

Defined in Data.ByteString.Internal.Type

Methods

showsPrec :: Int -> SizeOverflowException -> ShowS

show :: SizeOverflowException -> String

showList :: [SizeOverflowException] -> ShowS

Show ByteString

Defined in Data.ByteString.Lazy.Internal

Methods

showsPrec :: Int -> ByteString -> ShowS

show :: ByteString -> String

showList :: [ByteString] -> ShowS

Show ShortByteString

Defined in Data.ByteString.Short.Internal

Methods

showsPrec :: Int -> ShortByteString -> ShowS

show :: ShortByteString -> String

showList :: [ShortByteString] -> ShowS

Show IntSet

Defined in Data.IntSet.Internal

Methods

showsPrec :: Int -> IntSet -> ShowS

show :: IntSet -> String

showList :: [IntSet] -> ShowS

Show BitQueue

Defined in Utils.Containers.Internal.BitQueue

Methods

showsPrec :: Int -> BitQueue -> ShowS

show :: BitQueue -> String

showList :: [BitQueue] -> ShowS

Show BitQueueB

Defined in Utils.Containers.Internal.BitQueue

Methods

showsPrec :: Int -> BitQueueB -> ShowS

show :: BitQueueB -> String

showList :: [BitQueueB] -> ShowS

Show KindRep

Defined in GHC.Show

Methods

showsPrec :: Int -> KindRep -> ShowS

show :: KindRep -> String

showList :: [KindRep] -> ShowS

Show Module

Since: base-4.9.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> Module -> ShowS

show :: Module -> String

showList :: [Module] -> ShowS

Show Ordering

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Ordering -> ShowS

show :: Ordering -> String

showList :: [Ordering] -> ShowS

Show TrName

Since: base-4.9.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> TrName -> ShowS

show :: TrName -> String

showList :: [TrName] -> ShowS

Show TyCon

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> TyCon -> ShowS

show :: TyCon -> String

showList :: [TyCon] -> ShowS

Show TypeLitSort

Since: base-4.11.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> TypeLitSort -> ShowS

show :: TypeLitSort -> String

showList :: [TypeLitSort] -> ShowS

Show AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

showsPrec :: Int -> AttrOpTag -> ShowS

show :: AttrOpTag -> String

showList :: [AttrOpTag] -> ShowS

Show GType

Defined in Data.GI.Base.BasicTypes

Methods

showsPrec :: Int -> GType -> ShowS

show :: GType -> String

showList :: [GType] -> ShowS

Show UnexpectedNullPointerReturn

Defined in Data.GI.Base.BasicTypes

Methods

showsPrec :: Int -> UnexpectedNullPointerReturn -> ShowS

show :: UnexpectedNullPointerReturn -> String

showList :: [UnexpectedNullPointerReturn] -> ShowS

Show GError

Defined in Data.GI.Base.GError

Methods

showsPrec :: Int -> GError -> ShowS

show :: GError -> String

showList :: [GError] -> ShowS

Show GParamFlag

Defined in Data.GI.Base.GParamSpec

Methods

showsPrec :: Int -> GParamFlag -> ShowS

show :: GParamFlag -> String

showList :: [GParamFlag] -> ShowS

Show GVariantHandle

Defined in Data.GI.Base.GVariant

Methods

showsPrec :: Int -> GVariantHandle -> ShowS

show :: GVariantHandle -> String

showList :: [GVariantHandle] -> ShowS

Show GVariantObjectPath

Defined in Data.GI.Base.GVariant

Methods

showsPrec :: Int -> GVariantObjectPath -> ShowS

show :: GVariantObjectPath -> String

showList :: [GVariantObjectPath] -> ShowS

Show GVariantSignature

Defined in Data.GI.Base.GVariant

Methods

showsPrec :: Int -> GVariantSignature -> ShowS

show :: GVariantSignature -> String

showList :: [GVariantSignature] -> ShowS

Show ResolvedSymbolInfo

Defined in Data.GI.Base.Overloading

Methods

showsPrec :: Int -> ResolvedSymbolInfo -> ShowS

show :: ResolvedSymbolInfo -> String

showList :: [ResolvedSymbolInfo] -> ShowS

Show Mode

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

showsPrec :: Int -> Mode -> ShowS

show :: Mode -> String

showList :: [Mode] -> ShowS

Show Style

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

showsPrec :: Int -> Style -> ShowS

show :: Style -> String

showList :: [Style] -> ShowS

Show TextDetails

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

showsPrec :: Int -> TextDetails -> ShowS

show :: TextDetails -> String

showList :: [TextDetails] -> ShowS

Show Doc

Defined in Text.PrettyPrint.HughesPJ

Methods

showsPrec :: Int -> Doc -> ShowS

show :: Doc -> String

showList :: [Doc] -> ShowS

Show Decoding

Defined in Data.Text.Encoding

Methods

showsPrec :: Int -> Decoding -> ShowS

show :: Decoding -> String

showList :: [Decoding] -> ShowS

Show UnicodeException

Defined in Data.Text.Encoding.Error

Methods

showsPrec :: Int -> UnicodeException -> ShowS

show :: UnicodeException -> String

showList :: [UnicodeException] -> ShowS

Show I8

Defined in Data.Text.Foreign

Methods

showsPrec :: Int -> I8 -> ShowS

show :: I8 -> String

showList :: [I8] -> ShowS

Show Builder

Defined in Data.Text.Internal.Builder

Methods

showsPrec :: Int -> Builder -> ShowS

show :: Builder -> String

showList :: [Builder] -> ShowS

Show PartialUtf8CodePoint

Defined in Data.Text.Internal.Encoding

Methods

showsPrec :: Int -> PartialUtf8CodePoint -> ShowS

show :: PartialUtf8CodePoint -> String

showList :: [PartialUtf8CodePoint] -> ShowS

Show Utf8State

Defined in Data.Text.Internal.Encoding

Methods

showsPrec :: Int -> Utf8State -> ShowS

show :: Utf8State -> String

showList :: [Utf8State] -> ShowS

Show DecoderState

Defined in Data.Text.Internal.Encoding.Utf8

Methods

showsPrec :: Int -> DecoderState -> ShowS

show :: DecoderState -> String

showList :: [DecoderState] -> ShowS

Show Size

Defined in Data.Text.Internal.Fusion.Size

Methods

showsPrec :: Int -> Size -> ShowS

show :: Size -> String

showList :: [Size] -> ShowS

Show FPFormat

Defined in Data.Text.Lazy.Builder.RealFloat

Methods

showsPrec :: Int -> FPFormat -> ShowS

show :: FPFormat -> String

showList :: [FPFormat] -> ShowS

Show Iter

Defined in Data.Text.Unsafe

Methods

showsPrec :: Int -> Iter -> ShowS

show :: Iter -> String

showList :: [Iter] -> ShowS

Show Integer

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Integer -> ShowS

show :: Integer -> String

showList :: [Integer] -> ShowS

Show Natural

Since: base-4.8.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> Natural -> ShowS

show :: Natural -> String

showList :: [Natural] -> ShowS

Show ()

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> () -> ShowS

show :: () -> String

showList :: [()] -> ShowS

Show Bool

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Bool -> ShowS

show :: Bool -> String

showList :: [Bool] -> ShowS

Show Char

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Char -> ShowS

show :: Char -> String

showList :: [Char] -> ShowS

Show Int

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Int -> ShowS

show :: Int -> String

showList :: [Int] -> ShowS

Show Levity

Since: base-4.15.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> Levity -> ShowS

show :: Levity -> String

showList :: [Levity] -> ShowS

Show RuntimeRep

Since: base-4.11.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> RuntimeRep -> ShowS

show :: RuntimeRep -> String

showList :: [RuntimeRep] -> ShowS

Show VecCount

Since: base-4.11.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> VecCount -> ShowS

show :: VecCount -> String

showList :: [VecCount] -> ShowS

Show VecElem

Since: base-4.11.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> VecElem -> ShowS

show :: VecElem -> String

showList :: [VecElem] -> ShowS

Show Word

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Word -> ShowS

show :: Word -> String

showList :: [Word] -> ShowS

Show a => Show (ZipList a)

Since: base-4.7.0.0

Defined in Control.Applicative

Methods

showsPrec :: Int -> ZipList a -> ShowS

show :: ZipList a -> String

showList :: [ZipList a] -> ShowS

Show a => Show (And a)

Since: base-4.16

Defined in Data.Bits

Methods

showsPrec :: Int -> And a -> ShowS

show :: And a -> String

showList :: [And a] -> ShowS

Show a => Show (Iff a)

Since: base-4.16

Defined in Data.Bits

Methods

showsPrec :: Int -> Iff a -> ShowS

show :: Iff a -> String

showList :: [Iff a] -> ShowS

Show a => Show (Ior a)

Since: base-4.16

Defined in Data.Bits

Methods

showsPrec :: Int -> Ior a -> ShowS

show :: Ior a -> String

showList :: [Ior a] -> ShowS

Show a => Show (Xor a)

Since: base-4.16

Defined in Data.Bits

Methods

showsPrec :: Int -> Xor a -> ShowS

show :: Xor a -> String

showList :: [Xor a] -> ShowS

Show a => Show (Complex a)

Since: base-2.1

Defined in Data.Complex

Methods

showsPrec :: Int -> Complex a -> ShowS

show :: Complex a -> String

showList :: [Complex a] -> ShowS

Show a => Show (Identity a)

This instance would be equivalent to the derived instances of the Identity newtype if the runIdentity field were removed

Since: base-4.8.0.0

Defined in Data.Functor.Identity

Methods

showsPrec :: Int -> Identity a -> ShowS

show :: Identity a -> String

showList :: [Identity a] -> ShowS

Show a => Show (First a)

Since: base-2.1

Defined in Data.Monoid

Methods

showsPrec :: Int -> First a -> ShowS

show :: First a -> String

showList :: [First a] -> ShowS

Show a => Show (Last a)

Since: base-2.1

Defined in Data.Monoid

Methods

showsPrec :: Int -> Last a -> ShowS

show :: Last a -> String

showList :: [Last a] -> ShowS

Show a => Show (Down a)

This instance would be equivalent to the derived instances of the Down newtype if the getDown field were removed

Since: base-4.7.0.0

Defined in Data.Ord

Methods

showsPrec :: Int -> Down a -> ShowS

show :: Down a -> String

showList :: [Down a] -> ShowS

Show a => Show (First a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

showsPrec :: Int -> First a -> ShowS

show :: First a -> String

showList :: [First a] -> ShowS

Show a => Show (Last a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Last a -> ShowS

show :: Last a -> String

showList :: [Last a] -> ShowS

Show a => Show (Max a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Max a -> ShowS

show :: Max a -> String

showList :: [Max a] -> ShowS

Show a => Show (Min a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Min a -> ShowS

show :: Min a -> String

showList :: [Min a] -> ShowS

Show m => Show (WrappedMonoid m)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

showsPrec :: Int -> WrappedMonoid m -> ShowS

show :: WrappedMonoid m -> String

showList :: [WrappedMonoid m] -> ShowS

Show (ConstPtr a)

Defined in Foreign.C.ConstPtr

Methods

showsPrec :: Int -> ConstPtr a -> ShowS

show :: ConstPtr a -> String

showList :: [ConstPtr a] -> ShowS

Show a => Show (NonEmpty a)

Since: base-4.11.0.0

Defined in GHC.Show

Methods

showsPrec :: Int -> NonEmpty a -> ShowS

show :: NonEmpty a -> String

showList :: [NonEmpty a] -> ShowS

Show (ForeignPtr a)

Since: base-2.1

Defined in GHC.ForeignPtr

Methods

showsPrec :: Int -> ForeignPtr a -> ShowS

show :: ForeignPtr a -> String

showList :: [ForeignPtr a] -> ShowS

Show p => Show (Par1 p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> Par1 p -> ShowS

show :: Par1 p -> String

showList :: [Par1 p] -> ShowS

Show (FunPtr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

showsPrec :: Int -> FunPtr a -> ShowS

show :: FunPtr a -> String

showList :: [FunPtr a] -> ShowS

Show (Ptr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

showsPrec :: Int -> Ptr a -> ShowS

show :: Ptr a -> String

showList :: [Ptr a] -> ShowS

Show a => Show (Ratio a)

Since: base-2.0.1

Defined in GHC.Real

Methods

showsPrec :: Int -> Ratio a -> ShowS

show :: Ratio a -> String

showList :: [Ratio a] -> ShowS

Show (SChar c)

Since: base-4.18.0.0

Defined in GHC.TypeLits

Methods

showsPrec :: Int -> SChar c -> ShowS

show :: SChar c -> String

showList :: [SChar c] -> ShowS

Show (SSymbol s)

Since: base-4.18.0.0

Defined in GHC.TypeLits

Methods

showsPrec :: Int -> SSymbol s -> ShowS

show :: SSymbol s -> String

showList :: [SSymbol s] -> ShowS

Show (SNat n)

Since: base-4.18.0.0

Defined in GHC.TypeNats

Methods

showsPrec :: Int -> SNat n -> ShowS

show :: SNat n -> String

showList :: [SNat n] -> ShowS

Show vertex => Show (SCC vertex)

Since: containers-0.5.9

Defined in Data.Graph

Methods

showsPrec :: Int -> SCC vertex -> ShowS

show :: SCC vertex -> String

showList :: [SCC vertex] -> ShowS

Show a => Show (IntMap a)

Defined in Data.IntMap.Internal

Methods

showsPrec :: Int -> IntMap a -> ShowS

show :: IntMap a -> String

showList :: [IntMap a] -> ShowS

Show a => Show (Seq a)

Defined in Data.Sequence.Internal

Methods

showsPrec :: Int -> Seq a -> ShowS

show :: Seq a -> String

showList :: [Seq a] -> ShowS

Show a => Show (ViewL a)

Defined in Data.Sequence.Internal

Methods

showsPrec :: Int -> ViewL a -> ShowS

show :: ViewL a -> String

showList :: [ViewL a] -> ShowS

Show a => Show (ViewR a)

Defined in Data.Sequence.Internal

Methods

showsPrec :: Int -> ViewR a -> ShowS

show :: ViewR a -> String

showList :: [ViewR a] -> ShowS

Show a => Show (Intersection a)

Defined in Data.Set.Internal

Methods

showsPrec :: Int -> Intersection a -> ShowS

show :: Intersection a -> String

showList :: [Intersection a] -> ShowS

Show a => Show (Set a)

Defined in Data.Set.Internal

Methods

showsPrec :: Int -> Set a -> ShowS

show :: Set a -> String

showList :: [Set a] -> ShowS

Show a => Show (Tree a)

Defined in Data.Tree

Methods

showsPrec :: Int -> Tree a -> ShowS

show :: Tree a -> String

showList :: [Tree a] -> ShowS

Show a => Show (GVariantSinglet a)

Defined in Data.GI.Base.GVariant

Methods

showsPrec :: Int -> GVariantSinglet a -> ShowS

show :: GVariantSinglet a -> String

showList :: [GVariantSinglet a] -> ShowS

Show a => Show (AnnotDetails a)

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

showsPrec :: Int -> AnnotDetails a -> ShowS

show :: AnnotDetails a -> String

showList :: [AnnotDetails a] -> ShowS

Show (Doc a)

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

showsPrec :: Int -> Doc a -> ShowS

show :: Doc a -> String

showList :: [Doc a] -> ShowS

Show a => Show (Span a)

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

showsPrec :: Int -> Span a -> ShowS

show :: Span a -> String

showList :: [Span a] -> ShowS

Show a => Show (Maybe a)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Maybe a -> ShowS

show :: Maybe a -> String

showList :: [Maybe a] -> ShowS

Show a => Show (Solo a)

Since: base-4.15

Defined in GHC.Show

Methods

showsPrec :: Int -> Solo a -> ShowS

show :: Solo a -> String

showList :: [Solo a] -> ShowS

Show a => Show [a]

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> [a] -> ShowS

show :: [a] -> String

showList :: [[a]] -> ShowS

(Show a, Show b) => Show (Either a b)

Since: base-3.0

Defined in Data.Either

Methods

showsPrec :: Int -> Either a b -> ShowS

show :: Either a b -> String

showList :: [Either a b] -> ShowS

HasResolution a => Show (Fixed a)

Since: base-2.1

Defined in Data.Fixed

Methods

showsPrec :: Int -> Fixed a -> ShowS

show :: Fixed a -> String

showList :: [Fixed a] -> ShowS

Show (Proxy s)

Since: base-4.7.0.0

Defined in Data.Proxy

Methods

showsPrec :: Int -> Proxy s -> ShowS

show :: Proxy s -> String

showList :: [Proxy s] -> ShowS

(Show a, Show b) => Show (Arg a b)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Arg a b -> ShowS

show :: Arg a b -> String

showList :: [Arg a b] -> ShowS

Show (TypeRep a)

Defined in Data.Typeable.Internal

Methods

showsPrec :: Int -> TypeRep a -> ShowS

show :: TypeRep a -> String

showList :: [TypeRep a] -> ShowS

(Ix a, Show a, Show b) => Show (Array a b)

Since: base-2.1

Defined in GHC.Arr

Methods

showsPrec :: Int -> Array a b -> ShowS

show :: Array a b -> String

showList :: [Array a b] -> ShowS

Show (U1 p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> U1 p -> ShowS

show :: U1 p -> String

showList :: [U1 p] -> ShowS

Show (V1 p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> V1 p -> ShowS

show :: V1 p -> String

showList :: [V1 p] -> ShowS

Show (ST s a)

Since: base-2.1

Defined in GHC.ST

Methods

showsPrec :: Int -> ST s a -> ShowS

show :: ST s a -> String

showList :: [ST s a] -> ShowS

(Show k, Show a) => Show (Map k a)

Defined in Data.Map.Internal

Methods

showsPrec :: Int -> Map k a -> ShowS

show :: Map k a -> String

showList :: [Map k a] -> ShowS

(Show key, Show value) => Show (GVariantDictEntry key value)

Defined in Data.GI.Base.GVariant

Methods

showsPrec :: Int -> GVariantDictEntry key value -> ShowS

show :: GVariantDictEntry key value -> String

showList :: [GVariantDictEntry key value] -> ShowS

(Show a, Show b) => Show (a, b)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b) -> ShowS

show :: (a, b) -> String

showList :: [(a, b)] -> ShowS

Show a => Show (Const a b)

This instance would be equivalent to the derived instances of the Const newtype if the getConst field were removed

Since: base-4.8.0.0

Defined in Data.Functor.Const

Methods

showsPrec :: Int -> Const a b -> ShowS

show :: Const a b -> String

showList :: [Const a b] -> ShowS

Show (f a) => Show (Ap f a)

Since: base-4.12.0.0

Defined in Data.Monoid

Methods

showsPrec :: Int -> Ap f a -> ShowS

show :: Ap f a -> String

showList :: [Ap f a] -> ShowS

Show (Coercion a b)

Since: base-4.7.0.0

Defined in Data.Type.Coercion

Methods

showsPrec :: Int -> Coercion a b -> ShowS

show :: Coercion a b -> String

showList :: [Coercion a b] -> ShowS

Show (a :~: b)

Since: base-4.7.0.0

Defined in Data.Type.Equality

Methods

showsPrec :: Int -> (a :~: b) -> ShowS

show :: (a :~: b) -> String

showList :: [a :~: b] -> ShowS

Show (OrderingI a b)

Defined in Data.Type.Ord

Methods

showsPrec :: Int -> OrderingI a b -> ShowS

show :: OrderingI a b -> String

showList :: [OrderingI a b] -> ShowS

Show (f p) => Show (Rec1 f p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> Rec1 f p -> ShowS

show :: Rec1 f p -> String

showList :: [Rec1 f p] -> ShowS

Show (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Char p -> ShowS

show :: URec Char p -> String

showList :: [URec Char p] -> ShowS

Show (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Double p -> ShowS

show :: URec Double p -> String

showList :: [URec Double p] -> ShowS

Show (URec Float p)

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Float p -> ShowS

show :: URec Float p -> String

showList :: [URec Float p] -> ShowS

Show (URec Int p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Int p -> ShowS

show :: URec Int p -> String

showList :: [URec Int p] -> ShowS

Show (URec Word p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Word p -> ShowS

show :: URec Word p -> String

showList :: [URec Word p] -> ShowS

(Show a, Show b, Show c) => Show (a, b, c)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c) -> ShowS

show :: (a, b, c) -> String

showList :: [(a, b, c)] -> ShowS

(Show (f a), Show (g a)) => Show (Product f g a)

Since: base-4.18.0.0

Defined in Data.Functor.Product

Methods

showsPrec :: Int -> Product f g a -> ShowS

show :: Product f g a -> String

showList :: [Product f g a] -> ShowS

(Show (f a), Show (g a)) => Show (Sum f g a)

Since: base-4.18.0.0

Defined in Data.Functor.Sum

Methods

showsPrec :: Int -> Sum f g a -> ShowS

show :: Sum f g a -> String

showList :: [Sum f g a] -> ShowS

Show (a :~~: b)

Since: base-4.10.0.0

Defined in Data.Type.Equality

Methods

showsPrec :: Int -> (a :~~: b) -> ShowS

show :: (a :~~: b) -> String

showList :: [a :~~: b] -> ShowS

(Show (f p), Show (g p)) => Show ((f :*: g) p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> (f :*: g) p -> ShowS

show :: (f :*: g) p -> String

showList :: [(f :*: g) p] -> ShowS

(Show (f p), Show (g p)) => Show ((f :+: g) p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> (f :+: g) p -> ShowS

show :: (f :+: g) p -> String

showList :: [(f :+: g) p] -> ShowS

Show c => Show (K1 i c p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> K1 i c p -> ShowS

show :: K1 i c p -> String

showList :: [K1 i c p] -> ShowS

(Show a, Show b, Show c, Show d) => Show (a, b, c, d)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d) -> ShowS

show :: (a, b, c, d) -> String

showList :: [(a, b, c, d)] -> ShowS

Show (f (g a)) => Show (Compose f g a)

Since: base-4.18.0.0

Defined in Data.Functor.Compose

Methods

showsPrec :: Int -> Compose f g a -> ShowS

show :: Compose f g a -> String

showList :: [Compose f g a] -> ShowS

Show (f (g p)) => Show ((f :.: g) p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> (f :.: g) p -> ShowS

show :: (f :.: g) p -> String

showList :: [(f :.: g) p] -> ShowS

Show (f p) => Show (M1 i c f p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> M1 i c f p -> ShowS

show :: M1 i c f p -> String

showList :: [M1 i c f p] -> ShowS

(Show a, Show b, Show c, Show d, Show e) => Show (a, b, c, d, e)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e) -> ShowS

show :: (a, b, c, d, e) -> String

showList :: [(a, b, c, d, e)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f) => Show (a, b, c, d, e, f)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f) -> ShowS

show :: (a, b, c, d, e, f) -> String

showList :: [(a, b, c, d, e, f)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g) => Show (a, b, c, d, e, f, g)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g) -> ShowS

show :: (a, b, c, d, e, f, g) -> String

showList :: [(a, b, c, d, e, f, g)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h) => Show (a, b, c, d, e, f, g, h)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h) -> ShowS

show :: (a, b, c, d, e, f, g, h) -> String

showList :: [(a, b, c, d, e, f, g, h)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i) => Show (a, b, c, d, e, f, g, h, i)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i) -> ShowS

show :: (a, b, c, d, e, f, g, h, i) -> String

showList :: [(a, b, c, d, e, f, g, h, i)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i, Show j) => Show (a, b, c, d, e, f, g, h, i, j)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i, j) -> ShowS

show :: (a, b, c, d, e, f, g, h, i, j) -> String

showList :: [(a, b, c, d, e, f, g, h, i, j)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i, Show j, Show k) => Show (a, b, c, d, e, f, g, h, i, j, k)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i, j, k) -> ShowS

show :: (a, b, c, d, e, f, g, h, i, j, k) -> String

showList :: [(a, b, c, d, e, f, g, h, i, j, k)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i, Show j, Show k, Show l) => Show (a, b, c, d, e, f, g, h, i, j, k, l)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i, j, k, l) -> ShowS

show :: (a, b, c, d, e, f, g, h, i, j, k, l) -> String

showList :: [(a, b, c, d, e, f, g, h, i, j, k, l)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i, Show j, Show k, Show l, Show m) => Show (a, b, c, d, e, f, g, h, i, j, k, l, m)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> ShowS

show :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> String

showList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i, Show j, Show k, Show l, Show m, Show n) => Show (a, b, c, d, e, f, g, h, i, j, k, l, m, n)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> ShowS

show :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> String

showList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] -> ShowS

(Show a, Show b, Show c, Show d, Show e, Show f, Show g, Show h, Show i, Show j, Show k, Show l, Show m, Show n, Show o) => Show (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> ShowS

show :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> String

showList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] -> ShowS

class Eq a where

The Eq class defines equality (==) and inequality (/=). All the basic datatypes exported by the Prelude are instances of Eq, and Eq may be derived for any datatype whose constituents are also instances of Eq.

The Haskell Report defines no laws for Eq. However, instances are encouraged to follow these properties:

Reflexivity

x == x = True

Symmetry

x == y = y == x

Transitivity

if x == y && y == z = True, then x == z = True

Extensionality

if x == y = True and f is a function whose return type is an instance of Eq, then f x == f y = True

Negation

x /= y = not (x == y)

Minimal complete definition: either == or /=.

Minimal complete definition

(==) | (/=)

Methods

(==) :: a -> a -> Bool infix 4

(/=) :: a -> a -> Bool infix 4

Instances

Eq ByteArray

Since: base-4.17.0.0

Defined in Data.Array.Byte

Methods

(==) :: ByteArray -> ByteArray -> Bool

(/=) :: ByteArray -> ByteArray -> Bool

Eq Constr

Equality of constructors

Since: base-4.0.0.0

Defined in Data.Data

Methods

(==) :: Constr -> Constr -> Bool

(/=) :: Constr -> Constr -> Bool

Eq ConstrRep

Since: base-4.0.0.0

Defined in Data.Data

Methods

(==) :: ConstrRep -> ConstrRep -> Bool

(/=) :: ConstrRep -> ConstrRep -> Bool

Eq DataRep

Since: base-4.0.0.0

Defined in Data.Data

Methods

(==) :: DataRep -> DataRep -> Bool

(/=) :: DataRep -> DataRep -> Bool

Eq Fixity

Since: base-4.0.0.0

Defined in Data.Data

Methods

(==) :: Fixity -> Fixity -> Bool

(/=) :: Fixity -> Fixity -> Bool

Eq SomeTypeRep

Defined in Data.Typeable.Internal

Methods

(==) :: SomeTypeRep -> SomeTypeRep -> Bool

(/=) :: SomeTypeRep -> SomeTypeRep -> Bool

Eq Unique

Defined in Data.Unique

Methods

(==) :: Unique -> Unique -> Bool

(/=) :: Unique -> Unique -> Bool

Eq Version

Since: base-2.1

Defined in Data.Version

Methods

(==) :: Version -> Version -> Bool

(/=) :: Version -> Version -> Bool

Eq Errno

Since: base-2.1

Defined in Foreign.C.Error

Methods

(==) :: Errno -> Errno -> Bool

(/=) :: Errno -> Errno -> Bool

Eq CBool

Defined in Foreign.C.Types

Methods

(==) :: CBool -> CBool -> Bool

(/=) :: CBool -> CBool -> Bool

Eq CChar

Defined in Foreign.C.Types

Methods

(==) :: CChar -> CChar -> Bool

(/=) :: CChar -> CChar -> Bool

Eq CClock

Defined in Foreign.C.Types

Methods

(==) :: CClock -> CClock -> Bool

(/=) :: CClock -> CClock -> Bool

Eq CDouble

Defined in Foreign.C.Types

Methods

(==) :: CDouble -> CDouble -> Bool

(/=) :: CDouble -> CDouble -> Bool

Eq CFloat

Defined in Foreign.C.Types

Methods

(==) :: CFloat -> CFloat -> Bool

(/=) :: CFloat -> CFloat -> Bool

Eq CInt

Defined in Foreign.C.Types

Methods

(==) :: CInt -> CInt -> Bool

(/=) :: CInt -> CInt -> Bool

Eq CIntMax

Defined in Foreign.C.Types

Methods

(==) :: CIntMax -> CIntMax -> Bool

(/=) :: CIntMax -> CIntMax -> Bool

Eq CIntPtr

Defined in Foreign.C.Types

Methods

(==) :: CIntPtr -> CIntPtr -> Bool

(/=) :: CIntPtr -> CIntPtr -> Bool

Eq CLLong

Defined in Foreign.C.Types

Methods

(==) :: CLLong -> CLLong -> Bool

(/=) :: CLLong -> CLLong -> Bool

Eq CLong

Defined in Foreign.C.Types

Methods

(==) :: CLong -> CLong -> Bool

(/=) :: CLong -> CLong -> Bool

Eq CPtrdiff

Defined in Foreign.C.Types

Methods

(==) :: CPtrdiff -> CPtrdiff -> Bool

(/=) :: CPtrdiff -> CPtrdiff -> Bool

Eq CSChar

Defined in Foreign.C.Types

Methods

(==) :: CSChar -> CSChar -> Bool

(/=) :: CSChar -> CSChar -> Bool

Eq CSUSeconds

Defined in Foreign.C.Types

Methods

(==) :: CSUSeconds -> CSUSeconds -> Bool

(/=) :: CSUSeconds -> CSUSeconds -> Bool

Eq CShort

Defined in Foreign.C.Types

Methods

(==) :: CShort -> CShort -> Bool

(/=) :: CShort -> CShort -> Bool

Eq CSigAtomic

Defined in Foreign.C.Types

Methods

(==) :: CSigAtomic -> CSigAtomic -> Bool

(/=) :: CSigAtomic -> CSigAtomic -> Bool

Eq CSize

Defined in Foreign.C.Types

Methods

(==) :: CSize -> CSize -> Bool

(/=) :: CSize -> CSize -> Bool

Eq CTime

Defined in Foreign.C.Types

Methods

(==) :: CTime -> CTime -> Bool

(/=) :: CTime -> CTime -> Bool

Eq CUChar

Defined in Foreign.C.Types

Methods

(==) :: CUChar -> CUChar -> Bool

(/=) :: CUChar -> CUChar -> Bool

Eq CUInt

Defined in Foreign.C.Types

Methods

(==) :: CUInt -> CUInt -> Bool

(/=) :: CUInt -> CUInt -> Bool

Eq CUIntMax

Defined in Foreign.C.Types

Methods

(==) :: CUIntMax -> CUIntMax -> Bool

(/=) :: CUIntMax -> CUIntMax -> Bool

Eq CUIntPtr

Defined in Foreign.C.Types

Methods

(==) :: CUIntPtr -> CUIntPtr -> Bool

(/=) :: CUIntPtr -> CUIntPtr -> Bool

Eq CULLong

Defined in Foreign.C.Types

Methods

(==) :: CULLong -> CULLong -> Bool

(/=) :: CULLong -> CULLong -> Bool

Eq CULong

Defined in Foreign.C.Types

Methods

(==) :: CULong -> CULong -> Bool

(/=) :: CULong -> CULong -> Bool

Eq CUSeconds

Defined in Foreign.C.Types

Methods

(==) :: CUSeconds -> CUSeconds -> Bool

(/=) :: CUSeconds -> CUSeconds -> Bool

Eq CUShort

Defined in Foreign.C.Types

Methods

(==) :: CUShort -> CUShort -> Bool

(/=) :: CUShort -> CUShort -> Bool

Eq CWchar

Defined in Foreign.C.Types

Methods

(==) :: CWchar -> CWchar -> Bool

(/=) :: CWchar -> CWchar -> Bool

Eq IntPtr

Defined in Foreign.Ptr

Methods

(==) :: IntPtr -> IntPtr -> Bool

(/=) :: IntPtr -> IntPtr -> Bool

Eq WordPtr

Defined in Foreign.Ptr

Methods

(==) :: WordPtr -> WordPtr -> Bool

(/=) :: WordPtr -> WordPtr -> Bool

Eq Void

Since: base-4.8.0.0

Defined in GHC.Base

Methods

(==) :: Void -> Void -> Bool

(/=) :: Void -> Void -> Bool

Eq ByteOrder

Since: base-4.11.0.0

Defined in GHC.ByteOrder

Methods

(==) :: ByteOrder -> ByteOrder -> Bool

(/=) :: ByteOrder -> ByteOrder -> Bool

Eq BlockReason

Since: base-4.3.0.0

Defined in GHC.Conc.Sync

Methods

(==) :: BlockReason -> BlockReason -> Bool

(/=) :: BlockReason -> BlockReason -> Bool

Eq ThreadId

Since: base-4.2.0.0

Defined in GHC.Conc.Sync

Methods

(==) :: ThreadId -> ThreadId -> Bool

(/=) :: ThreadId -> ThreadId -> Bool

Eq ThreadStatus

Since: base-4.3.0.0

Defined in GHC.Conc.Sync

Methods

(==) :: ThreadStatus -> ThreadStatus -> Bool

(/=) :: ThreadStatus -> ThreadStatus -> Bool

Eq TimeoutKey

Defined in GHC.Event.TimeOut

Methods

(==) :: TimeoutKey -> TimeoutKey -> Bool

(/=) :: TimeoutKey -> TimeoutKey -> Bool

Eq ErrorCall

Since: base-4.7.0.0

Defined in GHC.Exception

Methods

(==) :: ErrorCall -> ErrorCall -> Bool

(/=) :: ErrorCall -> ErrorCall -> Bool

Eq ArithException

Since: base-3.0

Defined in GHC.Exception.Type

Methods

(==) :: ArithException -> ArithException -> Bool

(/=) :: ArithException -> ArithException -> Bool

Eq SpecConstrAnnotation

Since: base-4.3.0.0

Defined in GHC.Exts

Methods

(==) :: SpecConstrAnnotation -> SpecConstrAnnotation -> Bool

(/=) :: SpecConstrAnnotation -> SpecConstrAnnotation -> Bool

Eq Fingerprint

Since: base-4.4.0.0

Defined in GHC.Fingerprint.Type

Methods

(==) :: Fingerprint -> Fingerprint -> Bool

(/=) :: Fingerprint -> Fingerprint -> Bool

Eq Associativity

Since: base-4.6.0.0

Defined in GHC.Generics

Methods

(==) :: Associativity -> Associativity -> Bool

(/=) :: Associativity -> Associativity -> Bool

Eq DecidedStrictness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: DecidedStrictness -> DecidedStrictness -> Bool

(/=) :: DecidedStrictness -> DecidedStrictness -> Bool

Eq Fixity

Since: base-4.6.0.0

Defined in GHC.Generics

Methods

(==) :: Fixity -> Fixity -> Bool

(/=) :: Fixity -> Fixity -> Bool

Eq SourceStrictness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: SourceStrictness -> SourceStrictness -> Bool

(/=) :: SourceStrictness -> SourceStrictness -> Bool

Eq SourceUnpackedness

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: SourceUnpackedness -> SourceUnpackedness -> Bool

(/=) :: SourceUnpackedness -> SourceUnpackedness -> Bool

Eq MaskingState

Since: base-4.3.0.0

Defined in GHC.IO

Methods

(==) :: MaskingState -> MaskingState -> Bool

(/=) :: MaskingState -> MaskingState -> Bool

Eq BufferState

Since: base-4.2.0.0

Defined in GHC.IO.Buffer

Methods

(==) :: BufferState -> BufferState -> Bool

(/=) :: BufferState -> BufferState -> Bool

Eq IODeviceType

Since: base-4.2.0.0

Defined in GHC.IO.Device

Methods

(==) :: IODeviceType -> IODeviceType -> Bool

(/=) :: IODeviceType -> IODeviceType -> Bool

Eq SeekMode

Since: base-4.2.0.0

Defined in GHC.IO.Device

Methods

(==) :: SeekMode -> SeekMode -> Bool

(/=) :: SeekMode -> SeekMode -> Bool

Eq CodingProgress

Since: base-4.4.0.0

Defined in GHC.IO.Encoding.Types

Methods

(==) :: CodingProgress -> CodingProgress -> Bool

(/=) :: CodingProgress -> CodingProgress -> Bool

Eq ArrayException

Since: base-4.2.0.0

Defined in GHC.IO.Exception

Methods

(==) :: ArrayException -> ArrayException -> Bool

(/=) :: ArrayException -> ArrayException -> Bool

Eq AsyncException

Since: base-4.2.0.0

Defined in GHC.IO.Exception

Methods

(==) :: AsyncException -> AsyncException -> Bool

(/=) :: AsyncException -> AsyncException -> Bool

Eq ExitCode

Defined in GHC.IO.Exception

Methods

(==) :: ExitCode -> ExitCode -> Bool

(/=) :: ExitCode -> ExitCode -> Bool

Eq IOErrorType

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

(==) :: IOErrorType -> IOErrorType -> Bool

(/=) :: IOErrorType -> IOErrorType -> Bool

Eq IOException

Since: base-4.1.0.0

Defined in GHC.IO.Exception

Methods

(==) :: IOException -> IOException -> Bool

(/=) :: IOException -> IOException -> Bool

Eq HandlePosn

Since: base-4.1.0.0

Defined in GHC.IO.Handle

Methods

(==) :: HandlePosn -> HandlePosn -> Bool

(/=) :: HandlePosn -> HandlePosn -> Bool

Eq BufferMode

Since: base-4.2.0.0

Defined in GHC.IO.Handle.Types

Methods

(==) :: BufferMode -> BufferMode -> Bool

(/=) :: BufferMode -> BufferMode -> Bool

Eq Handle

Since: base-4.1.0.0

Defined in GHC.IO.Handle.Types

Methods

(==) :: Handle -> Handle -> Bool

(/=) :: Handle -> Handle -> Bool

Eq Newline

Since: base-4.2.0.0

Defined in GHC.IO.Handle.Types

Methods

(==) :: Newline -> Newline -> Bool

(/=) :: Newline -> Newline -> Bool

Eq NewlineMode

Since: base-4.2.0.0

Defined in GHC.IO.Handle.Types

Methods

(==) :: NewlineMode -> NewlineMode -> Bool

(/=) :: NewlineMode -> NewlineMode -> Bool

Eq IOMode

Since: base-4.2.0.0

Defined in GHC.IO.IOMode

Methods

(==) :: IOMode -> IOMode -> Bool

(/=) :: IOMode -> IOMode -> Bool

Eq InfoProv

Defined in GHC.InfoProv

Methods

(==) :: InfoProv -> InfoProv -> Bool

(/=) :: InfoProv -> InfoProv -> Bool

Eq Int16

Since: base-2.1

Defined in GHC.Int

Methods

(==) :: Int16 -> Int16 -> Bool

(/=) :: Int16 -> Int16 -> Bool

Eq Int32

Since: base-2.1

Defined in GHC.Int

Methods

(==) :: Int32 -> Int32 -> Bool

(/=) :: Int32 -> Int32 -> Bool

Eq Int64

Since: base-2.1

Defined in GHC.Int

Methods

(==) :: Int64 -> Int64 -> Bool

(/=) :: Int64 -> Int64 -> Bool

Eq Int8

Since: base-2.1

Defined in GHC.Int

Methods

(==) :: Int8 -> Int8 -> Bool

(/=) :: Int8 -> Int8 -> Bool

Eq IoSubSystem

Defined in GHC.RTS.Flags

Methods

(==) :: IoSubSystem -> IoSubSystem -> Bool

(/=) :: IoSubSystem -> IoSubSystem -> Bool

Eq StackEntry

Defined in GHC.Stack.CloneStack

Methods

(==) :: StackEntry -> StackEntry -> Bool

(/=) :: StackEntry -> StackEntry -> Bool

Eq SrcLoc

Since: base-4.9.0.0

Defined in GHC.Stack.Types

Methods

(==) :: SrcLoc -> SrcLoc -> Bool

(/=) :: SrcLoc -> SrcLoc -> Bool

Eq SomeChar

Defined in GHC.TypeLits

Methods

(==) :: SomeChar -> SomeChar -> Bool

(/=) :: SomeChar -> SomeChar -> Bool

Eq SomeSymbol

Since: base-4.7.0.0

Defined in GHC.TypeLits

Methods

(==) :: SomeSymbol -> SomeSymbol -> Bool

(/=) :: SomeSymbol -> SomeSymbol -> Bool

Eq SomeNat

Since: base-4.7.0.0

Defined in GHC.TypeNats

Methods

(==) :: SomeNat -> SomeNat -> Bool

(/=) :: SomeNat -> SomeNat -> Bool

Eq GeneralCategory

Since: base-2.1

Defined in GHC.Unicode

Methods

(==) :: GeneralCategory -> GeneralCategory -> Bool

(/=) :: GeneralCategory -> GeneralCategory -> Bool

Eq Word16

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word16 -> Word16 -> Bool

(/=) :: Word16 -> Word16 -> Bool

Eq Word32

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word32 -> Word32 -> Bool

(/=) :: Word32 -> Word32 -> Bool

Eq Word64

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word64 -> Word64 -> Bool

(/=) :: Word64 -> Word64 -> Bool

Eq Word8

Since: base-2.1

Defined in GHC.Word

Methods

(==) :: Word8 -> Word8 -> Bool

(/=) :: Word8 -> Word8 -> Bool

Eq CBlkCnt

Defined in System.Posix.Types

Methods

(==) :: CBlkCnt -> CBlkCnt -> Bool

(/=) :: CBlkCnt -> CBlkCnt -> Bool

Eq CBlkSize

Defined in System.Posix.Types

Methods

(==) :: CBlkSize -> CBlkSize -> Bool

(/=) :: CBlkSize -> CBlkSize -> Bool

Eq CCc

Defined in System.Posix.Types

Methods

(==) :: CCc -> CCc -> Bool

(/=) :: CCc -> CCc -> Bool

Eq CClockId

Defined in System.Posix.Types

Methods

(==) :: CClockId -> CClockId -> Bool

(/=) :: CClockId -> CClockId -> Bool

Eq CDev

Defined in System.Posix.Types

Methods

(==) :: CDev -> CDev -> Bool

(/=) :: CDev -> CDev -> Bool

Eq CFsBlkCnt

Defined in System.Posix.Types

Methods

(==) :: CFsBlkCnt -> CFsBlkCnt -> Bool

(/=) :: CFsBlkCnt -> CFsBlkCnt -> Bool

Eq CFsFilCnt

Defined in System.Posix.Types

Methods

(==) :: CFsFilCnt -> CFsFilCnt -> Bool

(/=) :: CFsFilCnt -> CFsFilCnt -> Bool

Eq CGid

Defined in System.Posix.Types

Methods

(==) :: CGid -> CGid -> Bool

(/=) :: CGid -> CGid -> Bool

Eq CId

Defined in System.Posix.Types

Methods

(==) :: CId -> CId -> Bool

(/=) :: CId -> CId -> Bool

Eq CIno

Defined in System.Posix.Types

Methods

(==) :: CIno -> CIno -> Bool

(/=) :: CIno -> CIno -> Bool

Eq CKey

Defined in System.Posix.Types

Methods

(==) :: CKey -> CKey -> Bool

(/=) :: CKey -> CKey -> Bool

Eq CMode

Defined in System.Posix.Types

Methods

(==) :: CMode -> CMode -> Bool

(/=) :: CMode -> CMode -> Bool

Eq CNfds

Defined in System.Posix.Types

Methods

(==) :: CNfds -> CNfds -> Bool

(/=) :: CNfds -> CNfds -> Bool

Eq CNlink

Defined in System.Posix.Types

Methods

(==) :: CNlink -> CNlink -> Bool

(/=) :: CNlink -> CNlink -> Bool

Eq COff

Defined in System.Posix.Types

Methods

(==) :: COff -> COff -> Bool

(/=) :: COff -> COff -> Bool

Eq CPid

Defined in System.Posix.Types

Methods

(==) :: CPid -> CPid -> Bool

(/=) :: CPid -> CPid -> Bool

Eq CRLim

Defined in System.Posix.Types

Methods

(==) :: CRLim -> CRLim -> Bool

(/=) :: CRLim -> CRLim -> Bool

Eq CSocklen

Defined in System.Posix.Types

Methods

(==) :: CSocklen -> CSocklen -> Bool

(/=) :: CSocklen -> CSocklen -> Bool

Eq CSpeed

Defined in System.Posix.Types

Methods

(==) :: CSpeed -> CSpeed -> Bool

(/=) :: CSpeed -> CSpeed -> Bool

Eq CSsize

Defined in System.Posix.Types

Methods

(==) :: CSsize -> CSsize -> Bool

(/=) :: CSsize -> CSsize -> Bool

Eq CTcflag

Defined in System.Posix.Types

Methods

(==) :: CTcflag -> CTcflag -> Bool

(/=) :: CTcflag -> CTcflag -> Bool

Eq CTimer

Defined in System.Posix.Types

Methods

(==) :: CTimer -> CTimer -> Bool

(/=) :: CTimer -> CTimer -> Bool

Eq CUid

Defined in System.Posix.Types

Methods

(==) :: CUid -> CUid -> Bool

(/=) :: CUid -> CUid -> Bool

Eq Fd

Defined in System.Posix.Types

Methods

(==) :: Fd -> Fd -> Bool

(/=) :: Fd -> Fd -> Bool

Eq Timeout

Defined in System.Timeout

Methods

(==) :: Timeout -> Timeout -> Bool

(/=) :: Timeout -> Timeout -> Bool

Eq Lexeme

Since: base-2.1

Defined in Text.Read.Lex

Methods

(==) :: Lexeme -> Lexeme -> Bool

(/=) :: Lexeme -> Lexeme -> Bool

Eq Number

Since: base-4.6.0.0

Defined in Text.Read.Lex

Methods

(==) :: Number -> Number -> Bool

(/=) :: Number -> Number -> Bool

Eq ByteString

Defined in Data.ByteString.Internal.Type

Methods

(==) :: ByteString -> ByteString -> Bool

(/=) :: ByteString -> ByteString -> Bool

Eq ByteString

Defined in Data.ByteString.Lazy.Internal

Methods

(==) :: ByteString -> ByteString -> Bool

(/=) :: ByteString -> ByteString -> Bool

Eq ShortByteString

Defined in Data.ByteString.Short.Internal

Methods

(==) :: ShortByteString -> ShortByteString -> Bool

(/=) :: ShortByteString -> ShortByteString -> Bool

Eq IntSet

Defined in Data.IntSet.Internal

Methods

(==) :: IntSet -> IntSet -> Bool

(/=) :: IntSet -> IntSet -> Bool

Eq BigNat

Defined in GHC.Num.BigNat

Methods

(==) :: BigNat -> BigNat -> Bool

(/=) :: BigNat -> BigNat -> Bool

Eq Module

Defined in GHC.Classes

Methods

(==) :: Module -> Module -> Bool

(/=) :: Module -> Module -> Bool

Eq Ordering

Defined in GHC.Classes

Methods

(==) :: Ordering -> Ordering -> Bool

(/=) :: Ordering -> Ordering -> Bool

Eq TrName

Defined in GHC.Classes

Methods

(==) :: TrName -> TrName -> Bool

(/=) :: TrName -> TrName -> Bool

Eq TyCon

Defined in GHC.Classes

Methods

(==) :: TyCon -> TyCon -> Bool

(/=) :: TyCon -> TyCon -> Bool

Eq AttrOpTag

Defined in Data.GI.Base.Attributes

Methods

(==) :: AttrOpTag -> AttrOpTag -> Bool

(/=) :: AttrOpTag -> AttrOpTag -> Bool

Eq GType

Defined in Data.GI.Base.BasicTypes

Methods

(==) :: GType -> GType -> Bool

(/=) :: GType -> GType -> Bool

Eq GParamFlag

Defined in Data.GI.Base.GParamSpec

Methods

(==) :: GParamFlag -> GParamFlag -> Bool

(/=) :: GParamFlag -> GParamFlag -> Bool

Eq GVariantHandle

Defined in Data.GI.Base.GVariant

Methods

(==) :: GVariantHandle -> GVariantHandle -> Bool

(/=) :: GVariantHandle -> GVariantHandle -> Bool

Eq GVariantObjectPath

Defined in Data.GI.Base.GVariant

Methods

(==) :: GVariantObjectPath -> GVariantObjectPath -> Bool

(/=) :: GVariantObjectPath -> GVariantObjectPath -> Bool

Eq GVariantSignature

Defined in Data.GI.Base.GVariant

Methods

(==) :: GVariantSignature -> GVariantSignature -> Bool

(/=) :: GVariantSignature -> GVariantSignature -> Bool

Eq Mode

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(==) :: Mode -> Mode -> Bool

(/=) :: Mode -> Mode -> Bool

Eq Style

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(==) :: Style -> Style -> Bool

(/=) :: Style -> Style -> Bool

Eq TextDetails

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(==) :: TextDetails -> TextDetails -> Bool

(/=) :: TextDetails -> TextDetails -> Bool

Eq Doc

Defined in Text.PrettyPrint.HughesPJ

Methods

(==) :: Doc -> Doc -> Bool

(/=) :: Doc -> Doc -> Bool

Eq UnicodeException

Defined in Data.Text.Encoding.Error

Methods

(==) :: UnicodeException -> UnicodeException -> Bool

(/=) :: UnicodeException -> UnicodeException -> Bool

Eq I8

Defined in Data.Text.Foreign

Methods

(==) :: I8 -> I8 -> Bool

(/=) :: I8 -> I8 -> Bool

Eq Builder

Defined in Data.Text.Internal.Builder

Methods

(==) :: Builder -> Builder -> Bool

(/=) :: Builder -> Builder -> Bool

Eq PartialUtf8CodePoint

Defined in Data.Text.Internal.Encoding

Methods

(==) :: PartialUtf8CodePoint -> PartialUtf8CodePoint -> Bool

(/=) :: PartialUtf8CodePoint -> PartialUtf8CodePoint -> Bool

Eq Utf8State

Defined in Data.Text.Internal.Encoding

Methods

(==) :: Utf8State -> Utf8State -> Bool

(/=) :: Utf8State -> Utf8State -> Bool

Eq DecoderState

Defined in Data.Text.Internal.Encoding.Utf8

Methods

(==) :: DecoderState -> DecoderState -> Bool

(/=) :: DecoderState -> DecoderState -> Bool

Eq Size

Defined in Data.Text.Internal.Fusion.Size

Methods

(==) :: Size -> Size -> Bool

(/=) :: Size -> Size -> Bool

Eq Integer

Defined in GHC.Num.Integer

Methods

(==) :: Integer -> Integer -> Bool

(/=) :: Integer -> Integer -> Bool

Eq Natural

Defined in GHC.Num.Natural

Methods

(==) :: Natural -> Natural -> Bool

(/=) :: Natural -> Natural -> Bool

Eq ()

Defined in GHC.Classes

Methods

(==) :: () -> () -> Bool

(/=) :: () -> () -> Bool

Eq Bool

Defined in GHC.Classes

Methods

(==) :: Bool -> Bool -> Bool

(/=) :: Bool -> Bool -> Bool

Eq Char

Defined in GHC.Classes

Methods

(==) :: Char -> Char -> Bool

(/=) :: Char -> Char -> Bool

Eq Double

Note that due to the presence of NaN, Double's Eq instance does not satisfy reflexivity.

>>> 0/0 == (0/0 :: Double)
False

Also note that Double's Eq instance does not satisfy substitutivity:

>>> 0 == (-0 :: Double)
True
>>> recip 0 == recip (-0 :: Double)
False

Defined in GHC.Classes

Methods

(==) :: Double -> Double -> Bool

(/=) :: Double -> Double -> Bool

Eq Float

Note that due to the presence of NaN, Float's Eq instance does not satisfy reflexivity.

>>> 0/0 == (0/0 :: Float)
False

Also note that Float's Eq instance does not satisfy extensionality:

>>> 0 == (-0 :: Float)
True
>>> recip 0 == recip (-0 :: Float)
False

Defined in GHC.Classes

Methods

(==) :: Float -> Float -> Bool

(/=) :: Float -> Float -> Bool

Eq Int

Defined in GHC.Classes

Methods

(==) :: Int -> Int -> Bool

(/=) :: Int -> Int -> Bool

Eq Word

Defined in GHC.Classes

Methods

(==) :: Word -> Word -> Bool

(/=) :: Word -> Word -> Bool

Eq a => Eq (ZipList a)

Since: base-4.7.0.0

Defined in Control.Applicative

Methods

(==) :: ZipList a -> ZipList a -> Bool

(/=) :: ZipList a -> ZipList a -> Bool

Eq (Chan a)

Since: base-4.4.0.0

Defined in Control.Concurrent.Chan

Methods

(==) :: Chan a -> Chan a -> Bool

(/=) :: Chan a -> Chan a -> Bool

Eq (MutableByteArray s)

Since: base-4.17.0.0

Defined in Data.Array.Byte

Methods

(==) :: MutableByteArray s -> MutableByteArray s -> Bool

(/=) :: MutableByteArray s -> MutableByteArray s -> Bool

Eq a => Eq (And a)

Since: base-4.16

Defined in Data.Bits

Methods

(==) :: And a -> And a -> Bool

(/=) :: And a -> And a -> Bool

Eq a => Eq (Iff a)

Since: base-4.16

Defined in Data.Bits

Methods

(==) :: Iff a -> Iff a -> Bool

(/=) :: Iff a -> Iff a -> Bool

Eq a => Eq (Ior a)

Since: base-4.16

Defined in Data.Bits

Methods

(==) :: Ior a -> Ior a -> Bool

(/=) :: Ior a -> Ior a -> Bool

Eq a => Eq (Xor a)

Since: base-4.16

Defined in Data.Bits

Methods

(==) :: Xor a -> Xor a -> Bool

(/=) :: Xor a -> Xor a -> Bool

Eq a => Eq (Complex a)

Since: base-2.1

Defined in Data.Complex

Methods

(==) :: Complex a -> Complex a -> Bool

(/=) :: Complex a -> Complex a -> Bool

Eq a => Eq (Identity a)

Since: base-4.8.0.0

Defined in Data.Functor.Identity

Methods

(==) :: Identity a -> Identity a -> Bool

(/=) :: Identity a -> Identity a -> Bool

Eq a => Eq (First a)

Since: base-2.1

Defined in Data.Monoid

Methods

(==) :: First a -> First a -> Bool

(/=) :: First a -> First a -> Bool

Eq a => Eq (Last a)

Since: base-2.1

Defined in Data.Monoid

Methods

(==) :: Last a -> Last a -> Bool

(/=) :: Last a -> Last a -> Bool

Eq a => Eq (Down a)

Since: base-4.6.0.0

Defined in Data.Ord

Methods

(==) :: Down a -> Down a -> Bool

(/=) :: Down a -> Down a -> Bool

Eq a => Eq (First a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(==) :: First a -> First a -> Bool

(/=) :: First a -> First a -> Bool

Eq a => Eq (Last a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(==) :: Last a -> Last a -> Bool

(/=) :: Last a -> Last a -> Bool

Eq a => Eq (Max a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(==) :: Max a -> Max a -> Bool

(/=) :: Max a -> Max a -> Bool

Eq a => Eq (Min a)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(==) :: Min a -> Min a -> Bool

(/=) :: Min a -> Min a -> Bool

Eq m => Eq (WrappedMonoid m)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(==) :: WrappedMonoid m -> WrappedMonoid m -> Bool

(/=) :: WrappedMonoid m -> WrappedMonoid m -> Bool

Eq (ConstPtr a)

Defined in Foreign.C.ConstPtr

Methods

(==) :: ConstPtr a -> ConstPtr a -> Bool

(/=) :: ConstPtr a -> ConstPtr a -> Bool

Eq a => Eq (NonEmpty a)

Since: base-4.9.0.0

Defined in GHC.Base

Methods

(==) :: NonEmpty a -> NonEmpty a -> Bool

(/=) :: NonEmpty a -> NonEmpty a -> Bool

Eq (TVar a)

Since: base-4.8.0.0

Defined in GHC.Conc.Sync

Methods

(==) :: TVar a -> TVar a -> Bool

(/=) :: TVar a -> TVar a -> Bool

Eq (ForeignPtr a)

Since: base-2.1

Defined in GHC.ForeignPtr

Methods

(==) :: ForeignPtr a -> ForeignPtr a -> Bool

(/=) :: ForeignPtr a -> ForeignPtr a -> Bool

Eq p => Eq (Par1 p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: Par1 p -> Par1 p -> Bool

(/=) :: Par1 p -> Par1 p -> Bool

Eq (IOPort a)

Since: base-4.1.0.0

Defined in GHC.IOPort

Methods

(==) :: IOPort a -> IOPort a -> Bool

(/=) :: IOPort a -> IOPort a -> Bool

Eq (IORef a)

Pointer equality.

Since: base-4.0.0.0

Defined in GHC.IORef

Methods

(==) :: IORef a -> IORef a -> Bool

(/=) :: IORef a -> IORef a -> Bool

Eq (MVar a)

Since: base-4.1.0.0

Defined in GHC.MVar

Methods

(==) :: MVar a -> MVar a -> Bool

(/=) :: MVar a -> MVar a -> Bool

Eq (FunPtr a)

Defined in GHC.Ptr

Methods

(==) :: FunPtr a -> FunPtr a -> Bool

(/=) :: FunPtr a -> FunPtr a -> Bool

Eq (Ptr a)

Since: base-2.1

Defined in GHC.Ptr

Methods

(==) :: Ptr a -> Ptr a -> Bool

(/=) :: Ptr a -> Ptr a -> Bool

Eq a => Eq (Ratio a)

Since: base-2.1

Defined in GHC.Real

Methods

(==) :: Ratio a -> Ratio a -> Bool

(/=) :: Ratio a -> Ratio a -> Bool

Eq (StablePtr a)

Since: base-2.1

Defined in GHC.Stable

Methods

(==) :: StablePtr a -> StablePtr a -> Bool

(/=) :: StablePtr a -> StablePtr a -> Bool

Eq (StableName a)

Since: base-2.1

Defined in GHC.StableName

Methods

(==) :: StableName a -> StableName a -> Bool

(/=) :: StableName a -> StableName a -> Bool

Eq (SChar c)

Since: base-4.19.0.0

Defined in GHC.TypeLits

Methods

(==) :: SChar c -> SChar c -> Bool

(/=) :: SChar c -> SChar c -> Bool

Eq (SSymbol s)

Since: base-4.19.0.0

Defined in GHC.TypeLits

Methods

(==) :: SSymbol s -> SSymbol s -> Bool

(/=) :: SSymbol s -> SSymbol s -> Bool

Eq (SNat n)

Since: base-4.19.0.0

Defined in GHC.TypeNats

Methods

(==) :: SNat n -> SNat n -> Bool

(/=) :: SNat n -> SNat n -> Bool

Eq vertex => Eq (SCC vertex)

Since: containers-0.5.9

Defined in Data.Graph

Methods

(==) :: SCC vertex -> SCC vertex -> Bool

(/=) :: SCC vertex -> SCC vertex -> Bool

Eq a => Eq (IntMap a)

Defined in Data.IntMap.Internal

Methods

(==) :: IntMap a -> IntMap a -> Bool

(/=) :: IntMap a -> IntMap a -> Bool

Eq a => Eq (Seq a)

Defined in Data.Sequence.Internal

Methods

(==) :: Seq a -> Seq a -> Bool

(/=) :: Seq a -> Seq a -> Bool

Eq a => Eq (ViewL a)

Defined in Data.Sequence.Internal

Methods

(==) :: ViewL a -> ViewL a -> Bool

(/=) :: ViewL a -> ViewL a -> Bool

Eq a => Eq (ViewR a)

Defined in Data.Sequence.Internal

Methods

(==) :: ViewR a -> ViewR a -> Bool

(/=) :: ViewR a -> ViewR a -> Bool

Eq a => Eq (Intersection a)

Defined in Data.Set.Internal

Methods

(==) :: Intersection a -> Intersection a -> Bool

(/=) :: Intersection a -> Intersection a -> Bool

Eq a => Eq (Set a)

Defined in Data.Set.Internal

Methods

(==) :: Set a -> Set a -> Bool

(/=) :: Set a -> Set a -> Bool

Eq a => Eq (Tree a)

Defined in Data.Tree

Methods

(==) :: Tree a -> Tree a -> Bool

(/=) :: Tree a -> Tree a -> Bool

Eq (ManagedPtr a)

Two ManagedPtrs are equal if they wrap the same underlying C Ptr.

Defined in Data.GI.Base.BasicTypes

Methods

(==) :: ManagedPtr a -> ManagedPtr a -> Bool

(/=) :: ManagedPtr a -> ManagedPtr a -> Bool

Eq a => Eq (GVariantSinglet a)

Defined in Data.GI.Base.GVariant

Methods

(==) :: GVariantSinglet a -> GVariantSinglet a -> Bool

(/=) :: GVariantSinglet a -> GVariantSinglet a -> Bool

Eq a => Eq (AnnotDetails a)

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(==) :: AnnotDetails a -> AnnotDetails a -> Bool

(/=) :: AnnotDetails a -> AnnotDetails a -> Bool

Eq (Doc a)

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(==) :: Doc a -> Doc a -> Bool

(/=) :: Doc a -> Doc a -> Bool

Eq a => Eq (Span a)

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(==) :: Span a -> Span a -> Bool

(/=) :: Span a -> Span a -> Bool

Eq a => Eq (Stream a)

Defined in Data.Text.Internal.Fusion.Types

Methods

(==) :: Stream a -> Stream a -> Bool

(/=) :: Stream a -> Stream a -> Bool

Eq a => Eq (Maybe a)

Since: base-2.1

Defined in GHC.Maybe

Methods

(==) :: Maybe a -> Maybe a -> Bool

(/=) :: Maybe a -> Maybe a -> Bool

Eq a => Eq (Solo a)

Defined in GHC.Classes

Methods

(==) :: Solo a -> Solo a -> Bool

(/=) :: Solo a -> Solo a -> Bool

Eq a => Eq [a]

Defined in GHC.Classes

Methods

(==) :: [a] -> [a] -> Bool

(/=) :: [a] -> [a] -> Bool

(Eq a, Eq b) => Eq (Either a b)

Since: base-2.1

Defined in Data.Either

Methods

(==) :: Either a b -> Either a b -> Bool

(/=) :: Either a b -> Either a b -> Bool

Eq (Fixed a)

Since: base-2.1

Defined in Data.Fixed

Methods

(==) :: Fixed a -> Fixed a -> Bool

(/=) :: Fixed a -> Fixed a -> Bool

Eq (Proxy s)

Since: base-4.7.0.0

Defined in Data.Proxy

Methods

(==) :: Proxy s -> Proxy s -> Bool

(/=) :: Proxy s -> Proxy s -> Bool

Eq a => Eq (Arg a b)

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(==) :: Arg a b -> Arg a b -> Bool

(/=) :: Arg a b -> Arg a b -> Bool

Eq (TypeRep a)

Since: base-2.1

Defined in Data.Typeable.Internal

Methods

(==) :: TypeRep a -> TypeRep a -> Bool

(/=) :: TypeRep a -> TypeRep a -> Bool

(Ix i, Eq e) => Eq (Array i e)

Since: base-2.1

Defined in GHC.Arr

Methods

(==) :: Array i e -> Array i e -> Bool

(/=) :: Array i e -> Array i e -> Bool

Eq (U1 p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: U1 p -> U1 p -> Bool

(/=) :: U1 p -> U1 p -> Bool

Eq (V1 p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: V1 p -> V1 p -> Bool

(/=) :: V1 p -> V1 p -> Bool

Eq (IOArray i e)

Since: base-4.1.0.0

Defined in GHC.IOArray

Methods

(==) :: IOArray i e -> IOArray i e -> Bool

(/=) :: IOArray i e -> IOArray i e -> Bool

Eq (STRef s a)

Pointer equality.

Since: base-2.1

Defined in GHC.STRef

Methods

(==) :: STRef s a -> STRef s a -> Bool

(/=) :: STRef s a -> STRef s a -> Bool

(Eq k, Eq a) => Eq (Map k a)

Defined in Data.Map.Internal

Methods

(==) :: Map k a -> Map k a -> Bool

(/=) :: Map k a -> Map k a -> Bool

(Eq key, Eq value) => Eq (GVariantDictEntry key value)

Defined in Data.GI.Base.GVariant

Methods

(==) :: GVariantDictEntry key value -> GVariantDictEntry key value -> Bool

(/=) :: GVariantDictEntry key value -> GVariantDictEntry key value -> Bool

(Eq a, Eq b) => Eq (a, b)

Defined in GHC.Classes

Methods

(==) :: (a, b) -> (a, b) -> Bool

(/=) :: (a, b) -> (a, b) -> Bool

Eq a => Eq (Const a b)

Since: base-4.9.0.0

Defined in Data.Functor.Const

Methods

(==) :: Const a b -> Const a b -> Bool

(/=) :: Const a b -> Const a b -> Bool

Eq (f a) => Eq (Ap f a)

Since: base-4.12.0.0

Defined in Data.Monoid

Methods

(==) :: Ap f a -> Ap f a -> Bool

(/=) :: Ap f a -> Ap f a -> Bool

Eq (Coercion a b)

Since: base-4.7.0.0

Defined in Data.Type.Coercion

Methods

(==) :: Coercion a b -> Coercion a b -> Bool

(/=) :: Coercion a b -> Coercion a b -> Bool

Eq (a :~: b)

Since: base-4.7.0.0

Defined in Data.Type.Equality

Methods

(==) :: (a :~: b) -> (a :~: b) -> Bool

(/=) :: (a :~: b) -> (a :~: b) -> Bool

Eq (OrderingI a b)

Defined in Data.Type.Ord

Methods

(==) :: OrderingI a b -> OrderingI a b -> Bool

(/=) :: OrderingI a b -> OrderingI a b -> Bool

Eq (STArray s i e)

Since: base-2.1

Defined in GHC.Arr

Methods

(==) :: STArray s i e -> STArray s i e -> Bool

(/=) :: STArray s i e -> STArray s i e -> Bool

(Generic1 f, Eq (Rep1 f a)) => Eq (Generically1 f a)

Since: base-4.18.0.0

Defined in GHC.Generics

Methods

(==) :: Generically1 f a -> Generically1 f a -> Bool

(/=) :: Generically1 f a -> Generically1 f a -> Bool

Eq (f p) => Eq (Rec1 f p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: Rec1 f p -> Rec1 f p -> Bool

(/=) :: Rec1 f p -> Rec1 f p -> Bool

Eq (URec (Ptr ()) p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

(/=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool

Eq (URec Char p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec Char p -> URec Char p -> Bool

(/=) :: URec Char p -> URec Char p -> Bool

Eq (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec Double p -> URec Double p -> Bool

(/=) :: URec Double p -> URec Double p -> Bool

Eq (URec Float p)

Defined in GHC.Generics

Methods

(==) :: URec Float p -> URec Float p -> Bool

(/=) :: URec Float p -> URec Float p -> Bool

Eq (URec Int p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec Int p -> URec Int p -> Bool

(/=) :: URec Int p -> URec Int p -> Bool

Eq (URec Word p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec Word p -> URec Word p -> Bool

(/=) :: URec Word p -> URec Word p -> Bool

(Eq a, Eq b, Eq c) => Eq (a, b, c)

Defined in GHC.Classes

Methods

(==) :: (a, b, c) -> (a, b, c) -> Bool

(/=) :: (a, b, c) -> (a, b, c) -> Bool

(Eq (f a), Eq (g a)) => Eq (Product f g a)

Since: base-4.18.0.0

Defined in Data.Functor.Product

Methods

(==) :: Product f g a -> Product f g a -> Bool

(/=) :: Product f g a -> Product f g a -> Bool

(Eq (f a), Eq (g a)) => Eq (Sum f g a)

Since: base-4.18.0.0

Defined in Data.Functor.Sum

Methods

(==) :: Sum f g a -> Sum f g a -> Bool

(/=) :: Sum f g a -> Sum f g a -> Bool

Eq (a :~~: b)

Since: base-4.10.0.0

Defined in Data.Type.Equality

Methods

(==) :: (a :~~: b) -> (a :~~: b) -> Bool

(/=) :: (a :~~: b) -> (a :~~: b) -> Bool

(Eq (f p), Eq (g p)) => Eq ((f :*: g) p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: (f :*: g) p -> (f :*: g) p -> Bool

(/=) :: (f :*: g) p -> (f :*: g) p -> Bool

(Eq (f p), Eq (g p)) => Eq ((f :+: g) p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: (f :+: g) p -> (f :+: g) p -> Bool

(/=) :: (f :+: g) p -> (f :+: g) p -> Bool

Eq c => Eq (K1 i c p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: K1 i c p -> K1 i c p -> Bool

(/=) :: K1 i c p -> K1 i c p -> Bool

(Eq a, Eq b, Eq c, Eq d) => Eq (a, b, c, d)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d) -> (a, b, c, d) -> Bool

(/=) :: (a, b, c, d) -> (a, b, c, d) -> Bool

Eq (f (g a)) => Eq (Compose f g a)

Since: base-4.18.0.0

Defined in Data.Functor.Compose

Methods

(==) :: Compose f g a -> Compose f g a -> Bool

(/=) :: Compose f g a -> Compose f g a -> Bool

Eq (f (g p)) => Eq ((f :.: g) p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: (f :.: g) p -> (f :.: g) p -> Bool

(/=) :: (f :.: g) p -> (f :.: g) p -> Bool

Eq (f p) => Eq (M1 i c f p)

Since: base-4.7.0.0

Defined in GHC.Generics

Methods

(==) :: M1 i c f p -> M1 i c f p -> Bool

(/=) :: M1 i c f p -> M1 i c f p -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e) => Eq (a, b, c, d, e)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool

(/=) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f) => Eq (a, b, c, d, e, f)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool

(/=) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g) => Eq (a, b, c, d, e, f, g)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool

(/=) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h) => Eq (a, b, c, d, e, f, g, h)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool

(/=) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i) => Eq (a, b, c, d, e, f, g, h, i)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j) => Eq (a, b, c, d, e, f, g, h, i, j)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k) => Eq (a, b, c, d, e, f, g, h, i, j, k)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l) => Eq (a, b, c, d, e, f, g, h, i, j, k, l)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l, Eq m) => Eq (a, b, c, d, e, f, g, h, i, j, k, l, m)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l, Eq m, Eq n) => Eq (a, b, c, d, e, f, g, h, i, j, k, l, m, n)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l, Eq m, Eq n, Eq o) => Eq (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool

data IO a

A value of type IO a is a computation which, when performed, does some I/O before returning a value of type a.

There is really only one way to "perform" an I/O action: bind it to Main.main in your program. When your program is run, the I/O will be performed. It isn't possible to perform I/O from an arbitrary function, unless that function is itself in the IO monad and called at some point, directly or indirectly, from Main.main.

IO is a monad, so IO actions can be combined using either the do-notation or the >> and >>= operations from the Monad class.

Instances

MonadFail IO

Since: base-4.9.0.0

Defined in Control.Monad.Fail

Methods

fail :: String -> IO a

MonadFix IO

Since: base-2.1

Defined in Control.Monad.Fix

Methods

mfix :: (a -> IO a) -> IO a

MonadIO IO

Since: base-4.9.0.0

Defined in Control.Monad.IO.Class

Methods

liftIO :: IO a -> IO a

Alternative IO

Takes the first non-throwing IO action's result. empty throws an exception.

Since: base-4.9.0.0

Defined in GHC.Base

Methods

empty :: IO a

(<|>) :: IO a -> IO a -> IO a

some :: IO a -> IO [a]

many :: IO a -> IO [a]

Applicative IO

Since: base-2.1

Defined in GHC.Base

Methods

pure :: a -> IO a

(<*>) :: IO (a -> b) -> IO a -> IO b

liftA2 :: (a -> b -> c) -> IO a -> IO b -> IO c

(*>) :: IO a -> IO b -> IO b

(<*) :: IO a -> IO b -> IO a

Functor IO

Since: base-2.1

Defined in GHC.Base

Methods

fmap :: (a -> b) -> IO a -> IO b

(<$) :: a -> IO b -> IO a

Monad IO

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: IO a -> (a -> IO b) -> IO b

(>>) :: IO a -> IO b -> IO b

return :: a -> IO a

MonadPlus IO

Takes the first non-throwing IO action's result. mzero throws an exception.

Since: base-4.9.0.0

Defined in GHC.Base

Methods

mzero :: IO a

mplus :: IO a -> IO a -> IO a

GHCiSandboxIO IO

Since: base-4.4.0.0

Defined in GHC.GHCi

Methods

ghciStepIO :: IO a -> IO a

Monoid a => Monoid (IO a)

Since: base-4.9.0.0

Defined in GHC.Base

Methods

mempty :: IO a

mappend :: IO a -> IO a -> IO a

mconcat :: [IO a] -> IO a

Semigroup a => Semigroup (IO a)

Since: base-4.10.0.0

Defined in GHC.Base

Methods

(<>) :: IO a -> IO a -> IO a

sconcat :: NonEmpty (IO a) -> IO a

stimes :: Integral b => b -> IO a -> IO a

a ~ () => HPrintfType (IO a)

Since: base-4.7.0.0

Defined in Text.Printf

Methods

hspr :: Handle -> String -> [UPrintf] -> IO a

a ~ () => PrintfType (IO a)

Since: base-4.7.0.0

Defined in Text.Printf

Methods

spr :: String -> [UPrintf] -> IO a

class Applicative m => Monad (m :: Type -> Type) where

The Monad class defines the basic operations over a monad, a concept from a branch of mathematics known as category theory. From the perspective of a Haskell programmer, however, it is best to think of a monad as an abstract datatype of actions. Haskell's do expressions provide a convenient syntax for writing monadic expressions.

Instances of Monad should satisfy the following:

Left identity

return a >>= k = k a

Right identity

m >>= return = m

Associativity

m >>= (\x -> k x >>= h) = (m >>= k) >>= h

Furthermore, the Monad and Applicative operations should relate as follows:

• pure = return

• m1 <*> m2 = m1 >>= (\x1 -> m2 >>= (\x2 -> return (x1 x2)))

The above laws imply:

• fmap f xs  =  xs >>= return . f

• (>>) = (*>)

and that pure and (<*>) satisfy the applicative functor laws.

The instances of Monad for lists, Maybe and IO defined in the Prelude satisfy these laws.

Minimal complete definition

(>>=)

Methods

(>>=) :: m a -> (a -> m b) -> m b infixl 1

Sequentially compose two actions, passing any value produced by the first as an argument to the second.

'as >>= bs' can be understood as the do expression

do a <- as
   bs a

(>>) :: m a -> m b -> m b infixl 1

Sequentially compose two actions, discarding any value produced by the first, like sequencing operators (such as the semicolon) in imperative languages.

'as >> bs' can be understood as the do expression

do as
   bs

return :: a -> m a

Inject a value into the monadic type.

Instances

Monad Complex

Since: base-4.9.0.0

Defined in Data.Complex

Methods

(>>=) :: Complex a -> (a -> Complex b) -> Complex b

(>>) :: Complex a -> Complex b -> Complex b

return :: a -> Complex a

Monad Identity

Since: base-4.8.0.0

Defined in Data.Functor.Identity

Methods

(>>=) :: Identity a -> (a -> Identity b) -> Identity b

(>>) :: Identity a -> Identity b -> Identity b

return :: a -> Identity a

Monad First

Since: base-4.8.0.0

Defined in Data.Monoid

Methods

(>>=) :: First a -> (a -> First b) -> First b

(>>) :: First a -> First b -> First b

return :: a -> First a

Monad Last

Since: base-4.8.0.0

Defined in Data.Monoid

Methods

(>>=) :: Last a -> (a -> Last b) -> Last b

(>>) :: Last a -> Last b -> Last b

return :: a -> Last a

Monad Down

Since: base-4.11.0.0

Defined in Data.Ord

Methods

(>>=) :: Down a -> (a -> Down b) -> Down b

(>>) :: Down a -> Down b -> Down b

return :: a -> Down a

Monad First

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(>>=) :: First a -> (a -> First b) -> First b

(>>) :: First a -> First b -> First b

return :: a -> First a

Monad Last

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(>>=) :: Last a -> (a -> Last b) -> Last b

(>>) :: Last a -> Last b -> Last b

return :: a -> Last a

Monad Max

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(>>=) :: Max a -> (a -> Max b) -> Max b

(>>) :: Max a -> Max b -> Max b

return :: a -> Max a

Monad Min

Since: base-4.9.0.0

Defined in Data.Semigroup

Methods

(>>=) :: Min a -> (a -> Min b) -> Min b

(>>) :: Min a -> Min b -> Min b

return :: a -> Min a

Monad NonEmpty

Since: base-4.9.0.0

Defined in GHC.Base

Methods

(>>=) :: NonEmpty a -> (a -> NonEmpty b) -> NonEmpty b

(>>) :: NonEmpty a -> NonEmpty b -> NonEmpty b

return :: a -> NonEmpty a

Monad STM

Since: base-4.3.0.0

Defined in GHC.Conc.Sync

Methods

(>>=) :: STM a -> (a -> STM b) -> STM b

(>>) :: STM a -> STM b -> STM b

return :: a -> STM a

Monad NoIO

Since: base-4.4.0.0

Defined in GHC.GHCi

Methods

(>>=) :: NoIO a -> (a -> NoIO b) -> NoIO b

(>>) :: NoIO a -> NoIO b -> NoIO b

return :: a -> NoIO a

Monad Par1

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(>>=) :: Par1 a -> (a -> Par1 b) -> Par1 b

(>>) :: Par1 a -> Par1 b -> Par1 b

return :: a -> Par1 a

Monad P

Since: base-2.1

Defined in Text.ParserCombinators.ReadP

Methods

(>>=) :: P a -> (a -> P b) -> P b

(>>) :: P a -> P b -> P b

return :: a -> P a

Monad ReadP

Since: base-2.1

Defined in Text.ParserCombinators.ReadP

Methods

(>>=) :: ReadP a -> (a -> ReadP b) -> ReadP b

(>>) :: ReadP a -> ReadP b -> ReadP b

return :: a -> ReadP a

Monad ReadPrec

Since: base-2.1

Defined in Text.ParserCombinators.ReadPrec

Methods

(>>=) :: ReadPrec a -> (a -> ReadPrec b) -> ReadPrec b

(>>) :: ReadPrec a -> ReadPrec b -> ReadPrec b

return :: a -> ReadPrec a

Monad Put

Defined in Data.ByteString.Builder.Internal

Methods

(>>=) :: Put a -> (a -> Put b) -> Put b

(>>) :: Put a -> Put b -> Put b

return :: a -> Put a

Monad Seq

Defined in Data.Sequence.Internal

Methods

(>>=) :: Seq a -> (a -> Seq b) -> Seq b

(>>) :: Seq a -> Seq b -> Seq b

return :: a -> Seq a

Monad Tree

Defined in Data.Tree

Methods

(>>=) :: Tree a -> (a -> Tree b) -> Tree b

(>>) :: Tree a -> Tree b -> Tree b

return :: a -> Tree a

Monad IO

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: IO a -> (a -> IO b) -> IO b

(>>) :: IO a -> IO b -> IO b

return :: a -> IO a

Monad Maybe

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: Maybe a -> (a -> Maybe b) -> Maybe b

(>>) :: Maybe a -> Maybe b -> Maybe b

return :: a -> Maybe a

Monad Solo

Since: base-4.15

Defined in GHC.Base

Methods

(>>=) :: Solo a -> (a -> Solo b) -> Solo b

(>>) :: Solo a -> Solo b -> Solo b

return :: a -> Solo a

Monad []

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: [a] -> (a -> [b]) -> [b]

(>>) :: [a] -> [b] -> [b]

return :: a -> [a]

Monad m => Monad (WrappedMonad m)

Since: base-4.7.0.0

Defined in Control.Applicative

Methods

(>>=) :: WrappedMonad m a -> (a -> WrappedMonad m b) -> WrappedMonad m b

(>>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b

return :: a -> WrappedMonad m a

ArrowApply a => Monad (ArrowMonad a)

Since: base-2.1

Defined in Control.Arrow

Methods

(>>=) :: ArrowMonad a a0 -> (a0 -> ArrowMonad a b) -> ArrowMonad a b

(>>) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a b

return :: a0 -> ArrowMonad a a0

Monad (Either e)

Since: base-4.4.0.0

Defined in Data.Either

Methods

(>>=) :: Either e a -> (a -> Either e b) -> Either e b

(>>) :: Either e a -> Either e b -> Either e b

return :: a -> Either e a

Monad (Proxy :: Type -> Type)

Since: base-4.7.0.0

Defined in Data.Proxy

Methods

(>>=) :: Proxy a -> (a -> Proxy b) -> Proxy b

(>>) :: Proxy a -> Proxy b -> Proxy b

return :: a -> Proxy a

Monad (U1 :: Type -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(>>=) :: U1 a -> (a -> U1 b) -> U1 b

(>>) :: U1 a -> U1 b -> U1 b

return :: a -> U1 a

Monad (ST s)

Since: base-2.1

Defined in GHC.ST

Methods

(>>=) :: ST s a -> (a -> ST s b) -> ST s b

(>>) :: ST s a -> ST s b -> ST s b

return :: a -> ST s a

Monad (SetM s)

Defined in Data.Graph

Methods

(>>=) :: SetM s a -> (a -> SetM s b) -> SetM s b

(>>) :: SetM s a -> SetM s b -> SetM s b

return :: a -> SetM s a

Monad (IParser t)

Defined in Data.Text.Internal.Read

Methods

(>>=) :: IParser t a -> (a -> IParser t b) -> IParser t b

(>>) :: IParser t a -> IParser t b -> IParser t b

return :: a -> IParser t a

Monoid a => Monad ((,) a)

Since: base-4.9.0.0

Defined in GHC.Base

Methods

(>>=) :: (a, a0) -> (a0 -> (a, b)) -> (a, b)

(>>) :: (a, a0) -> (a, b) -> (a, b)

return :: a0 -> (a, a0)

Monad m => Monad (Kleisli m a)

Since: base-4.14.0.0

Defined in Control.Arrow

Methods

(>>=) :: Kleisli m a a0 -> (a0 -> Kleisli m a b) -> Kleisli m a b

(>>) :: Kleisli m a a0 -> Kleisli m a b -> Kleisli m a b

return :: a0 -> Kleisli m a a0

Monad f => Monad (Ap f)

Since: base-4.12.0.0

Defined in Data.Monoid

Methods

(>>=) :: Ap f a -> (a -> Ap f b) -> Ap f b

(>>) :: Ap f a -> Ap f b -> Ap f b

return :: a -> Ap f a

Monad f => Monad (Rec1 f)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(>>=) :: Rec1 f a -> (a -> Rec1 f b) -> Rec1 f b

(>>) :: Rec1 f a -> Rec1 f b -> Rec1 f b

return :: a -> Rec1 f a

(Applicative f, Monad f) => Monad (WhenMissing f x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)).

Since: containers-0.5.9

Defined in Data.IntMap.Internal

Methods

(>>=) :: WhenMissing f x a -> (a -> WhenMissing f x b) -> WhenMissing f x b

(>>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b

return :: a -> WhenMissing f x a

(Monoid a, Monoid b) => Monad ((,,) a b)

Since: base-4.14.0.0

Defined in GHC.Base

Methods

(>>=) :: (a, b, a0) -> (a0 -> (a, b, b0)) -> (a, b, b0)

(>>) :: (a, b, a0) -> (a, b, b0) -> (a, b, b0)

return :: a0 -> (a, b, a0)

(Monad f, Monad g) => Monad (Product f g)

Since: base-4.9.0.0

Defined in Data.Functor.Product

Methods

(>>=) :: Product f g a -> (a -> Product f g b) -> Product f g b

(>>) :: Product f g a -> Product f g b -> Product f g b

return :: a -> Product f g a

(Monad f, Monad g) => Monad (f :*: g)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(>>=) :: (f :*: g) a -> (a -> (f :*: g) b) -> (f :*: g) b

(>>) :: (f :*: g) a -> (f :*: g) b -> (f :*: g) b

return :: a -> (f :*: g) a

(Monad f, Applicative f) => Monad (WhenMatched f x y)

Equivalent to ReaderT Key (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Defined in Data.IntMap.Internal

Methods

(>>=) :: WhenMatched f x y a -> (a -> WhenMatched f x y b) -> WhenMatched f x y b

(>>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b

return :: a -> WhenMatched f x y a

(Applicative f, Monad f) => Monad (WhenMissing f k x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)) .

Since: containers-0.5.9

Defined in Data.Map.Internal

Methods

(>>=) :: WhenMissing f k x a -> (a -> WhenMissing f k x b) -> WhenMissing f k x b

(>>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b

return :: a -> WhenMissing f k x a

(Monoid a, Monoid b, Monoid c) => Monad ((,,,) a b c)

Since: base-4.14.0.0

Defined in GHC.Base

Methods

(>>=) :: (a, b, c, a0) -> (a0 -> (a, b, c, b0)) -> (a, b, c, b0)

(>>) :: (a, b, c, a0) -> (a, b, c, b0) -> (a, b, c, b0)

return :: a0 -> (a, b, c, a0)

Monad ((->) r)

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: (r -> a) -> (a -> r -> b) -> r -> b

(>>) :: (r -> a) -> (r -> b) -> r -> b

return :: a -> r -> a

Monad f => Monad (M1 i c f)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(>>=) :: M1 i c f a -> (a -> M1 i c f b) -> M1 i c f b

(>>) :: M1 i c f a -> M1 i c f b -> M1 i c f b

return :: a -> M1 i c f a

(Monad f, Applicative f) => Monad (WhenMatched f k x y)

Equivalent to ReaderT k (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Defined in Data.Map.Internal

Methods

(>>=) :: WhenMatched f k x y a -> (a -> WhenMatched f k x y b) -> WhenMatched f k x y b

(>>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b

return :: a -> WhenMatched f k x y a

data Maybe a

The Maybe type encapsulates an optional value. A value of type Maybe a either contains a value of type a (represented as Just a), or it is empty (represented as Nothing). Using Maybe is a good way to deal with errors or exceptional cases without resorting to drastic measures such as error.

The Maybe type is also a monad. It is a simple kind of error monad, where all errors are represented by Nothing. A richer error monad can be built using the Either type.

Constructors

Nothing

Just a

Instances

MonadFail Maybe

Since: base-4.9.0.0

Defined in Control.Monad.Fail

Methods

fail :: String -> Maybe a

MonadFix Maybe

Since: base-2.1

Defined in Control.Monad.Fix

Methods

mfix :: (a -> Maybe a) -> Maybe a

MonadZip Maybe

Since: base-4.8.0.0

Defined in Control.Monad.Zip

Methods

mzip :: Maybe a -> Maybe b -> Maybe (a, b)

mzipWith :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c

munzip :: Maybe (a, b) -> (Maybe a, Maybe b)

Foldable Maybe

Since: base-2.1

Defined in Data.Foldable

Methods

fold :: Monoid m => Maybe m -> m

foldMap :: Monoid m => (a -> m) -> Maybe a -> m

foldMap' :: Monoid m => (a -> m) -> Maybe a -> m

foldr :: (a -> b -> b) -> b -> Maybe a -> b

foldr' :: (a -> b -> b) -> b -> Maybe a -> b

foldl :: (b -> a -> b) -> b -> Maybe a -> b

foldl' :: (b -> a -> b) -> b -> Maybe a -> b

foldr1 :: (a -> a -> a) -> Maybe a -> a

foldl1 :: (a -> a -> a) -> Maybe a -> a

toList :: Maybe a -> [a]

null :: Maybe a -> Bool

length :: Maybe a -> Int

elem :: Eq a => a -> Maybe a -> Bool

maximum :: Ord a => Maybe a -> a

minimum :: Ord a => Maybe a -> a

sum :: Num a => Maybe a -> a

product :: Num a => Maybe a -> a

Eq1 Maybe

Since: base-4.9.0.0

Defined in Data.Functor.Classes

Methods

liftEq :: (a -> b -> Bool) -> Maybe a -> Maybe b -> Bool

Ord1 Maybe

Since: base-4.9.0.0

Defined in Data.Functor.Classes

Methods

liftCompare :: (a -> b -> Ordering) -> Maybe a -> Maybe b -> Ordering

Read1 Maybe

Since: base-4.9.0.0

Defined in Data.Functor.Classes

Methods

liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (Maybe a)

liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [Maybe a]

liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (Maybe a)

liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [Maybe a]

Show1 Maybe

Since: base-4.9.0.0

Defined in Data.Functor.Classes

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Maybe a -> ShowS

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Maybe a] -> ShowS

Traversable Maybe

Since: base-2.1

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Maybe a -> f (Maybe b)

sequenceA :: Applicative f => Maybe (f a) -> f (Maybe a)

mapM :: Monad m => (a -> m b) -> Maybe a -> m (Maybe b)

sequence :: Monad m => Maybe (m a) -> m (Maybe a)

Alternative Maybe

Picks the leftmost Just value, or, alternatively, Nothing.

Since: base-2.1

Defined in GHC.Base

Methods

empty :: Maybe a

(<|>) :: Maybe a -> Maybe a -> Maybe a

some :: Maybe a -> Maybe [a]

many :: Maybe a -> Maybe [a]

Applicative Maybe

Since: base-2.1

Defined in GHC.Base

Methods

pure :: a -> Maybe a

(<*>) :: Maybe (a -> b) -> Maybe a -> Maybe b

liftA2 :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c

(*>) :: Maybe a -> Maybe b -> Maybe b

(<*) :: Maybe a -> Maybe b -> Maybe a

Functor Maybe

Since: base-2.1

Defined in GHC.Base

Methods

fmap :: (a -> b) -> Maybe a -> Maybe b

(<$) :: a -> Maybe b -> Maybe a

Monad Maybe

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: Maybe a -> (a -> Maybe b) -> Maybe b

(>>) :: Maybe a -> Maybe b -> Maybe b

return :: a -> Maybe a

MonadPlus Maybe

Picks the leftmost Just value, or, alternatively, Nothing.

Since: base-2.1

Defined in GHC.Base

Methods

mzero :: Maybe a

mplus :: Maybe a -> Maybe a -> Maybe a

Generic1 Maybe

Defined in GHC.Generics

Associated Types

type Rep1 Maybe

Since: base-4.6.0.0

Defined in GHC.Generics

type Rep1 Maybe = D1 ('MetaData "Maybe" "GHC.Maybe" "base" 'False) (C1 ('MetaCons "Nothing" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Just" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) Par1))

Methods

from1 :: Maybe a -> Rep1 Maybe a

to1 :: Rep1 Maybe a -> Maybe a

Data a => Data (Maybe a)

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Maybe a -> c (Maybe a)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Maybe a)

toConstr :: Maybe a -> Constr

dataTypeOf :: Maybe a -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Maybe a))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Maybe a))

gmapT :: (forall b. Data b => b -> b) -> Maybe a -> Maybe a

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Maybe a -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Maybe a -> r

gmapQ :: (forall d. Data d => d -> u) -> Maybe a -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Maybe a -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a)

Semigroup a => Monoid (Maybe a)

Lift a semigroup into Maybe forming a Monoid according to http://en.wikipedia.org/wiki/Monoid: "Any semigroup S may be turned into a monoid simply by adjoining an element e not in S and defining e*e = e and e*s = s = s*e for all s ∈ S."

Since 4.11.0: constraint on inner a value generalised from Monoid to Semigroup.

Since: base-2.1

Defined in GHC.Base

Methods

mempty :: Maybe a

mappend :: Maybe a -> Maybe a -> Maybe a

mconcat :: [Maybe a] -> Maybe a

Semigroup a => Semigroup (Maybe a)

Since: base-4.9.0.0

Defined in GHC.Base

Methods

(<>) :: Maybe a -> Maybe a -> Maybe a

sconcat :: NonEmpty (Maybe a) -> Maybe a

stimes :: Integral b => b -> Maybe a -> Maybe a

Generic (Maybe a)

Defined in GHC.Generics

Associated Types

type Rep (Maybe a)

Since: base-4.6.0.0

Defined in GHC.Generics

type Rep (Maybe a) = D1 ('MetaData "Maybe" "GHC.Maybe" "base" 'False) (C1 ('MetaCons "Nothing" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Just" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 a)))

Methods

from :: Maybe a -> Rep (Maybe a) x

to :: Rep (Maybe a) x -> Maybe a

SingKind a => SingKind (Maybe a)

Since: base-4.9.0.0

Defined in GHC.Generics

Associated Types

type DemoteRep (Maybe a)

Defined in GHC.Generics

type DemoteRep (Maybe a) = Maybe (DemoteRep a)

Methods

fromSing :: forall (a0 :: Maybe a). Sing a0 -> DemoteRep (Maybe a)

Read a => Read (Maybe a)

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (Maybe a)

readList :: ReadS [Maybe a]

readPrec :: ReadPrec (Maybe a)

readListPrec :: ReadPrec [Maybe a]

Show a => Show (Maybe a)

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Maybe a -> ShowS

show :: Maybe a -> String

showList :: [Maybe a] -> ShowS

Eq a => Eq (Maybe a)

Since: base-2.1

Defined in GHC.Maybe

Methods

(==) :: Maybe a -> Maybe a -> Bool

(/=) :: Maybe a -> Maybe a -> Bool

Ord a => Ord (Maybe a)

Since: base-2.1

Defined in GHC.Maybe

Methods

compare :: Maybe a -> Maybe a -> Ordering

(<) :: Maybe a -> Maybe a -> Bool

(<=) :: Maybe a -> Maybe a -> Bool

(>) :: Maybe a -> Maybe a -> Bool

(>=) :: Maybe a -> Maybe a -> Bool

max :: Maybe a -> Maybe a -> Maybe a

min :: Maybe a -> Maybe a -> Maybe a

IsGValue (Maybe GParamSpec)

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe GParamSpec -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe GParamSpec)

IsGValue (Maybe Text)

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe Text -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe Text)

IsGValue (Maybe String)

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe String -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe String)

IsGVariant a => IsGVariant (Maybe a)

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Maybe a -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe (Maybe a))

toGVariantFormatString :: Maybe a -> Text

SingI ('Nothing :: Maybe a)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

sing :: Sing ('Nothing :: Maybe a)

SingI a2 => SingI ('Just a2 :: Maybe a1)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

sing :: Sing ('Just a2)

type Rep1 Maybe

Since: base-4.6.0.0

Defined in GHC.Generics

type Rep1 Maybe = D1 ('MetaData "Maybe" "GHC.Maybe" "base" 'False) (C1 ('MetaCons "Nothing" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Just" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) Par1))

type DemoteRep (Maybe a)

Defined in GHC.Generics

type DemoteRep (Maybe a) = Maybe (DemoteRep a)

type Rep (Maybe a)

Since: base-4.6.0.0

Defined in GHC.Generics

type Rep (Maybe a) = D1 ('MetaData "Maybe" "GHC.Maybe" "base" 'False) (C1 ('MetaCons "Nothing" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Just" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 a)))

data Sing (b :: Maybe a)

Defined in GHC.Generics

data Sing (b :: Maybe a) where

• SNothing :: forall {a}. Sing ('Nothing :: Maybe a)
• SJust :: forall {a} (a1 :: a). Sing a1 -> Sing ('Just a1)

(.) :: (b -> c) -> (a -> b) -> a -> c infixr 9

Right to left function composition.

(f . g) x = f (g x)

f . id = f = id . f

Examples

>>> map ((*2) . length) [[], [0, 1, 2], [0]]
[0,6,2]

>>> foldr (.) id [(+1), (*3), (^3)] 2
25

>>> let (...) = (.).(.) in ((*2)...(+)) 5 10
30

($) :: (a -> b) -> a -> b infixr 0

($) is the function application operator.

Applying ($) to a function f and an argument x gives the same result as applying f to x directly. The definition is akin to this:

($) :: (a -> b) -> a -> b
($) f x = f x

This is id specialized from a -> a to (a -> b) -> (a -> b) which by the associativity of (->) is the same as (a -> b) -> a -> b.

On the face of it, this may appear pointless! But it's actually one of the most useful and important operators in Haskell.

The order of operations is very different between ($) and normal function application. Normal function application has precedence 10 - higher than any operator - and associates to the left. So these two definitions are equivalent:

expr = min 5 1 + 5
expr = ((min 5) 1) + 5

($) has precedence 0 (the lowest) and associates to the right, so these are equivalent:

expr = min 5 $ 1 + 5
expr = (min 5) (1 + 5)

Examples

A common use cases of ($) is to avoid parentheses in complex expressions.

For example, instead of using nested parentheses in the following Haskell function:

-- | Sum numbers in a string: strSum "100  5 -7" == 98
strSum :: String -> Int
strSum s = sum (mapMaybe readMaybe (words s))

we can deploy the function application operator:

-- | Sum numbers in a string: strSum "100  5 -7" == 98
strSum :: String -> Int
strSum s = sum $ mapMaybe readMaybe $ words s

($) is also used as a section (a partially applied operator), in order to indicate that we wish to apply some yet-unspecified function to a given value. For example, to apply the argument 5 to a list of functions:

applyFive :: [Int]
applyFive = map ($ 5) [(+1), (2^)]
>>> [6, 32]

Technical Remark (Representation Polymorphism)

($) is fully representation-polymorphic. This allows it to also be used with arguments of unlifted and even unboxed kinds, such as unboxed integers:

fastMod :: Int -> Int -> Int
fastMod (I# x) (I# m) = I# $ remInt# x m

(++) :: [a] -> [a] -> [a] infixr 5

(++) appends two lists, i.e.,

[x1, ..., xm] ++ [y1, ..., yn] == [x1, ..., xm, y1, ..., yn]
[x1, ..., xm] ++ [y1, ...] == [x1, ..., xm, y1, ...]

If the first list is not finite, the result is the first list.

Performance considerations

This function takes linear time in the number of elements of the first list. Thus it is better to associate repeated applications of (++) to the right (which is the default behaviour): xs ++ (ys ++ zs) or simply xs ++ ys ++ zs, but not (xs ++ ys) ++ zs. For the same reason concat = foldr (++) [] has linear performance, while foldl (++) [] is prone to quadratic slowdown

Examples

>>> [1, 2, 3] ++ [4, 5, 6]
[1,2,3,4,5,6]

>>> [] ++ [1, 2, 3]
[1,2,3]

>>> [3, 2, 1] ++ []
[3,2,1]

(=<<) :: Monad m => (a -> m b) -> m a -> m b infixr 1

Same as >>=, but with the arguments interchanged.

(>=>) :: Monad m => (a -> m b) -> (b -> m c) -> a -> m c infixr 1

Left-to-right composition of Kleisli arrows.

'(bs >=> cs) a' can be understood as the do expression

do b <- bs a
   cs b

data Bool

Instances

Data Bool

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Bool -> c Bool

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Bool

toConstr :: Bool -> Constr

dataTypeOf :: Bool -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Bool)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Bool)

gmapT :: (forall b. Data b => b -> b) -> Bool -> Bool

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Bool -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Bool -> r

gmapQ :: (forall d. Data d => d -> u) -> Bool -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Bool -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Bool -> m Bool

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Bool -> m Bool

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Bool -> m Bool

Storable Bool

Since: base-2.1

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 ()

Bits Bool

Interpret Bool as 1-bit bit-field

Since: base-4.7.0.0

Defined in GHC.Bits

Methods

(.&.) :: Bool -> Bool -> Bool

(.|.) :: Bool -> Bool -> Bool

xor :: Bool -> Bool -> Bool

complement :: Bool -> Bool

shift :: Bool -> Int -> Bool

rotate :: Bool -> Int -> Bool

zeroBits :: Bool

bit :: Int -> Bool

setBit :: Bool -> Int -> Bool

clearBit :: Bool -> Int -> Bool

complementBit :: Bool -> Int -> Bool

testBit :: Bool -> Int -> Bool

bitSizeMaybe :: Bool -> Maybe Int

bitSize :: Bool -> Int

isSigned :: Bool -> Bool

shiftL :: Bool -> Int -> Bool

unsafeShiftL :: Bool -> Int -> Bool

shiftR :: Bool -> Int -> Bool

unsafeShiftR :: Bool -> Int -> Bool

rotateL :: Bool -> Int -> Bool

rotateR :: Bool -> Int -> Bool

popCount :: Bool -> Int

FiniteBits Bool

Since: base-4.7.0.0

Defined in GHC.Bits

Methods

finiteBitSize :: Bool -> Int

countLeadingZeros :: Bool -> Int

countTrailingZeros :: Bool -> Int

Bounded Bool

Since: base-2.1

Defined in GHC.Enum

Methods

minBound :: Bool

maxBound :: Bool

Enum Bool

Since: base-2.1

Defined in GHC.Enum

Methods

succ :: Bool -> Bool

pred :: Bool -> Bool

toEnum :: Int -> Bool

fromEnum :: Bool -> Int

enumFrom :: Bool -> [Bool]

enumFromThen :: Bool -> Bool -> [Bool]

enumFromTo :: Bool -> Bool -> [Bool]

enumFromThenTo :: Bool -> Bool -> Bool -> [Bool]

Generic Bool

Defined in GHC.Generics

Associated Types

type Rep Bool

Since: base-4.6.0.0

Defined in GHC.Generics

type Rep Bool = D1 ('MetaData "Bool" "GHC.Types" "ghc-prim" 'False) (C1 ('MetaCons "False" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "True" 'PrefixI 'False) (U1 :: Type -> Type))

Methods

from :: Bool -> Rep Bool x

to :: Rep Bool x -> Bool

SingKind Bool

Since: base-4.9.0.0

Defined in GHC.Generics

Associated Types

type DemoteRep Bool

Defined in GHC.Generics

type DemoteRep Bool = Bool

Methods

fromSing :: forall (a :: Bool). Sing a -> DemoteRep Bool

Ix Bool

Since: base-2.1

Defined in GHC.Ix

Methods

range :: (Bool, Bool) -> [Bool]

index :: (Bool, Bool) -> Bool -> Int

unsafeIndex :: (Bool, Bool) -> Bool -> Int

inRange :: (Bool, Bool) -> Bool -> Bool

rangeSize :: (Bool, Bool) -> Int

unsafeRangeSize :: (Bool, Bool) -> Int

Read Bool

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Bool

readList :: ReadS [Bool]

readPrec :: ReadPrec Bool

readListPrec :: ReadPrec [Bool]

Show Bool

Since: base-2.1

Defined in GHC.Show

Methods

showsPrec :: Int -> Bool -> ShowS

show :: Bool -> String

showList :: [Bool] -> ShowS

Eq Bool

Defined in GHC.Classes

Methods

(==) :: Bool -> Bool -> Bool

(/=) :: Bool -> Bool -> Bool

Ord Bool

Defined in GHC.Classes

Methods

compare :: Bool -> Bool -> Ordering

(<) :: Bool -> Bool -> Bool

(<=) :: Bool -> Bool -> Bool

(>) :: Bool -> Bool -> Bool

(>=) :: Bool -> Bool -> Bool

max :: Bool -> Bool -> Bool

min :: Bool -> Bool -> Bool

IsGValue Bool

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Bool -> IO ()

gvalueGet_ :: Ptr GValue -> IO Bool

IsGVariant Bool

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Bool -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe Bool)

toGVariantFormatString :: Bool -> Text

IsGVariantBasicType Bool

Defined in Data.GI.Base.GVariant

SingI 'False

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

sing :: Sing 'False

SingI 'True

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

sing :: Sing 'True

type DemoteRep Bool

Defined in GHC.Generics

type DemoteRep Bool = Bool

type Rep Bool

Since: base-4.6.0.0

Defined in GHC.Generics

type Rep Bool = D1 ('MetaData "Bool" "GHC.Types" "ghc-prim" 'False) (C1 ('MetaCons "False" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "True" 'PrefixI 'False) (U1 :: Type -> Type))

data Sing (a :: Bool)

Defined in GHC.Generics

data Sing (a :: Bool) where

• STrue :: Sing 'True
• SFalse :: Sing 'False

data Float

Single-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE single-precision type.

Instances

Data Float

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Float -> c Float

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Float

toConstr :: Float -> Constr

dataTypeOf :: Float -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Float)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Float)

gmapT :: (forall b. Data b => b -> b) -> Float -> Float

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Float -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Float -> r

gmapQ :: (forall d. Data d => d -> u) -> Float -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Float -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Float -> m Float

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Float -> m Float

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Float -> m Float

Storable Float

Since: base-2.1

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 ()

Floating Float

Since: base-2.1

Defined in GHC.Float

Methods

pi :: Float

exp :: Float -> Float

log :: Float -> Float

sqrt :: Float -> Float

(**) :: Float -> Float -> Float

logBase :: Float -> Float -> Float

sin :: Float -> Float

cos :: Float -> Float

tan :: Float -> Float

asin :: Float -> Float

acos :: Float -> Float

atan :: Float -> Float

sinh :: Float -> Float

cosh :: Float -> Float

tanh :: Float -> Float

asinh :: Float -> Float

acosh :: Float -> Float

atanh :: Float -> Float

log1p :: Float -> Float

expm1 :: Float -> Float

log1pexp :: Float -> Float

log1mexp :: Float -> Float

RealFloat Float

Since: base-2.1

Defined in GHC.Float

Methods

floatRadix :: Float -> Integer

floatDigits :: Float -> Int

floatRange :: Float -> (Int, Int)

decodeFloat :: Float -> (Integer, Int)

encodeFloat :: Integer -> Int -> Float

exponent :: Float -> Int

significand :: Float -> Float

scaleFloat :: Int -> Float -> Float

isNaN :: Float -> Bool

isInfinite :: Float -> Bool

isDenormalized :: Float -> Bool

isNegativeZero :: Float -> Bool

isIEEE :: Float -> Bool

atan2 :: Float -> Float -> Float

Read Float

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Float

readList :: ReadS [Float]

readPrec :: ReadPrec Float

readListPrec :: ReadPrec [Float]

PrintfArg Float

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Float -> FieldFormatter

parseFormat :: Float -> ModifierParser

Eq Float

Note that due to the presence of NaN, Float's Eq instance does not satisfy reflexivity.

>>> 0/0 == (0/0 :: Float)
False

Also note that Float's Eq instance does not satisfy extensionality:

>>> 0 == (-0 :: Float)
True
>>> recip 0 == recip (-0 :: Float)
False

Defined in GHC.Classes

Methods

(==) :: Float -> Float -> Bool

(/=) :: Float -> Float -> Bool

Ord Float

See instance Ord Double for discussion of deviations from IEEE 754 standard.

Defined in GHC.Classes

Methods

compare :: Float -> Float -> Ordering

(<) :: Float -> Float -> Bool

(<=) :: Float -> Float -> Bool

(>) :: Float -> Float -> Bool

(>=) :: Float -> Float -> Bool

max :: Float -> Float -> Float

min :: Float -> Float -> Float

IsGValue Float

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Float -> IO ()

gvalueGet_ :: Ptr GValue -> IO Float

Generic1 (URec Float :: k -> Type)

Defined in GHC.Generics

Associated Types

type Rep1 (URec Float :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec Float :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UFloat" 'PrefixI 'True) (S1 ('MetaSel ('Just "uFloat#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UFloat :: k -> Type)))

Methods

from1 :: forall (a :: k). URec Float a -> Rep1 (URec Float :: k -> Type) a

to1 :: forall (a :: k). Rep1 (URec Float :: k -> Type) a -> URec Float a

Foldable (UFloat :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Foldable

Methods

fold :: Monoid m => UFloat m -> m

foldMap :: Monoid m => (a -> m) -> UFloat a -> m

foldMap' :: Monoid m => (a -> m) -> UFloat a -> m

foldr :: (a -> b -> b) -> b -> UFloat a -> b

foldr' :: (a -> b -> b) -> b -> UFloat a -> b

foldl :: (b -> a -> b) -> b -> UFloat a -> b

foldl' :: (b -> a -> b) -> b -> UFloat a -> b

foldr1 :: (a -> a -> a) -> UFloat a -> a

foldl1 :: (a -> a -> a) -> UFloat a -> a

toList :: UFloat a -> [a]

null :: UFloat a -> Bool

length :: UFloat a -> Int

elem :: Eq a => a -> UFloat a -> Bool

maximum :: Ord a => UFloat a -> a

minimum :: Ord a => UFloat a -> a

sum :: Num a => UFloat a -> a

product :: Num a => UFloat a -> a

Traversable (UFloat :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> UFloat a -> f (UFloat b)

sequenceA :: Applicative f => UFloat (f a) -> f (UFloat a)

mapM :: Monad m => (a -> m b) -> UFloat a -> m (UFloat b)

sequence :: Monad m => UFloat (m a) -> m (UFloat a)

Functor (URec Float :: Type -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Float a -> URec Float b

(<$) :: a -> URec Float b -> URec Float a

Generic (URec Float p)

Defined in GHC.Generics

Associated Types

type Rep (URec Float p)

Defined in GHC.Generics

type Rep (URec Float p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UFloat" 'PrefixI 'True) (S1 ('MetaSel ('Just "uFloat#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UFloat :: Type -> Type)))

Methods

from :: URec Float p -> Rep (URec Float p) x

to :: Rep (URec Float p) x -> URec Float p

Show (URec Float p)

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Float p -> ShowS

show :: URec Float p -> String

showList :: [URec Float p] -> ShowS

Eq (URec Float p)

Defined in GHC.Generics

Methods

(==) :: URec Float p -> URec Float p -> Bool

(/=) :: URec Float p -> URec Float p -> Bool

Ord (URec Float p)

Defined in GHC.Generics

Methods

compare :: URec Float p -> URec Float p -> Ordering

(<) :: URec Float p -> URec Float p -> Bool

(<=) :: URec Float p -> URec Float p -> Bool

(>) :: URec Float p -> URec Float p -> Bool

(>=) :: URec Float p -> URec Float p -> Bool

max :: URec Float p -> URec Float p -> URec Float p

min :: URec Float p -> URec Float p -> URec Float p

data URec Float (p :: k)

Used for marking occurrences of Float#

Since: base-4.9.0.0

Defined in GHC.Generics

data URec Float (p :: k) = UFloat {

• uFloat# :: Float#

}

type Rep1 (URec Float :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec Float :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UFloat" 'PrefixI 'True) (S1 ('MetaSel ('Just "uFloat#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UFloat :: k -> Type)))

type Rep (URec Float p)

Defined in GHC.Generics

type Rep (URec Float p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UFloat" 'PrefixI 'True) (S1 ('MetaSel ('Just "uFloat#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UFloat :: Type -> Type)))

data Double

Double-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE double-precision type.

Instances

Data Double

Since: base-4.0.0.0

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Double -> c Double

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Double

toConstr :: Double -> Constr

dataTypeOf :: Double -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Double)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Double)

gmapT :: (forall b. Data b => b -> b) -> Double -> Double

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Double -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Double -> r

gmapQ :: (forall d. Data d => d -> u) -> Double -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Double -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Double -> m Double

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Double -> m Double

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Double -> m Double

Storable Double

Since: base-2.1

Defined in Foreign.Storable

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 ()

Floating Double

Since: base-2.1

Defined in GHC.Float

Methods

pi :: Double

exp :: Double -> Double

log :: Double -> Double

sqrt :: Double -> Double

(**) :: Double -> Double -> Double

logBase :: Double -> Double -> Double

sin :: Double -> Double

cos :: Double -> Double

tan :: Double -> Double

asin :: Double -> Double

acos :: Double -> Double

atan :: Double -> Double

sinh :: Double -> Double

cosh :: Double -> Double

tanh :: Double -> Double

asinh :: Double -> Double

acosh :: Double -> Double

atanh :: Double -> Double

log1p :: Double -> Double

expm1 :: Double -> Double

log1pexp :: Double -> Double

log1mexp :: Double -> Double

RealFloat Double

Since: base-2.1

Defined in GHC.Float

Methods

floatRadix :: Double -> Integer

floatDigits :: Double -> Int

floatRange :: Double -> (Int, Int)

decodeFloat :: Double -> (Integer, Int)

encodeFloat :: Integer -> Int -> Double

exponent :: Double -> Int

significand :: Double -> Double

scaleFloat :: Int -> Double -> Double

isNaN :: Double -> Bool

isInfinite :: Double -> Bool

isDenormalized :: Double -> Bool

isNegativeZero :: Double -> Bool

isIEEE :: Double -> Bool

atan2 :: Double -> Double -> Double

Read Double

Since: base-2.1

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Double

readList :: ReadS [Double]

readPrec :: ReadPrec Double

readListPrec :: ReadPrec [Double]

PrintfArg Double

Since: base-2.1

Defined in Text.Printf

Methods

formatArg :: Double -> FieldFormatter

parseFormat :: Double -> ModifierParser

Eq Double

Note that due to the presence of NaN, Double's Eq instance does not satisfy reflexivity.

>>> 0/0 == (0/0 :: Double)
False

Also note that Double's Eq instance does not satisfy substitutivity:

>>> 0 == (-0 :: Double)
True
>>> recip 0 == recip (-0 :: Double)
False

Defined in GHC.Classes

Methods

(==) :: Double -> Double -> Bool

(/=) :: Double -> Double -> Bool

Ord Double

IEEE 754 Double-precision type includes not only numbers, but also positive and negative infinities and a special element called NaN (which can be quiet or signal).

IEEE 754-2008, section 5.11 requires that if at least one of arguments of <=, <, >, >= is NaN then the result of the comparison is False, and instance Ord Double complies with this requirement. This violates the reflexivity: both NaN <= NaN and NaN >= NaN are False.

IEEE 754-2008, section 5.10 defines totalOrder predicate. Unfortunately, compare on Doubles violates the IEEE standard and does not define a total order. More specifically, both compare NaN x and compare x NaN always return GT.

Thus, users must be extremely cautious when using instance Ord Double. For instance, one should avoid ordered containers with keys represented by Double, because data loss and corruption may happen. An IEEE-compliant compare is available in fp-ieee package as TotallyOrdered newtype.

Moving further, the behaviour of min and max with regards to NaN is also non-compliant. IEEE 754-2008, section 5.3.1 defines that quiet NaN should be treated as a missing data by minNum and maxNum functions, for example, minNum(NaN, 1) = minNum(1, NaN) = 1. Some languages such as Java deviate from the standard implementing minNum(NaN, 1) = minNum(1, NaN) = NaN. However, min / max in base are even worse: min NaN 1 is 1, but min 1 NaN is NaN.

IEEE 754-2008 compliant min / max can be found in ieee754 package under minNum / maxNum names. Implementations compliant with minimumNumber / maximumNumber from a newer IEEE 754-2019, section 9.6 are available from fp-ieee package.

Defined in GHC.Classes

Methods

compare :: Double -> Double -> Ordering

(<) :: Double -> Double -> Bool

(<=) :: Double -> Double -> Bool

(>) :: Double -> Double -> Bool

(>=) :: Double -> Double -> Bool

max :: Double -> Double -> Double

min :: Double -> Double -> Double

IsGValue Double

Defined in Data.GI.Base.GValue

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Double -> IO ()

gvalueGet_ :: Ptr GValue -> IO Double

IsGVariant Double

Defined in Data.GI.Base.GVariant

Methods

toGVariant :: Double -> IO GVariant

fromGVariant :: GVariant -> IO (Maybe Double)

toGVariantFormatString :: Double -> Text

IsGVariantBasicType Double

Defined in Data.GI.Base.GVariant

Generic1 (URec Double :: k -> Type)

Defined in GHC.Generics

Associated Types

type Rep1 (URec Double :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec Double :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UDouble" 'PrefixI 'True) (S1 ('MetaSel ('Just "uDouble#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UDouble :: k -> Type)))

Methods

from1 :: forall (a :: k). URec Double a -> Rep1 (URec Double :: k -> Type) a

to1 :: forall (a :: k). Rep1 (URec Double :: k -> Type) a -> URec Double a

Foldable (UDouble :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Foldable

Methods

fold :: Monoid m => UDouble m -> m

foldMap :: Monoid m => (a -> m) -> UDouble a -> m

foldMap' :: Monoid m => (a -> m) -> UDouble a -> m

foldr :: (a -> b -> b) -> b -> UDouble a -> b

foldr' :: (a -> b -> b) -> b -> UDouble a -> b

foldl :: (b -> a -> b) -> b -> UDouble a -> b

foldl' :: (b -> a -> b) -> b -> UDouble a -> b

foldr1 :: (a -> a -> a) -> UDouble a -> a

foldl1 :: (a -> a -> a) -> UDouble a -> a

toList :: UDouble a -> [a]

null :: UDouble a -> Bool

length :: UDouble a -> Int

elem :: Eq a => a -> UDouble a -> Bool

maximum :: Ord a => UDouble a -> a

minimum :: Ord a => UDouble a -> a

sum :: Num a => UDouble a -> a

product :: Num a => UDouble a -> a

Traversable (UDouble :: Type -> Type)

Since: base-4.9.0.0

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> UDouble a -> f (UDouble b)

sequenceA :: Applicative f => UDouble (f a) -> f (UDouble a)

mapM :: Monad m => (a -> m b) -> UDouble a -> m (UDouble b)

sequence :: Monad m => UDouble (m a) -> m (UDouble a)

Functor (URec Double :: Type -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Double a -> URec Double b

(<$) :: a -> URec Double b -> URec Double a

Generic (URec Double p)

Defined in GHC.Generics

Associated Types

type Rep (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep (URec Double p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UDouble" 'PrefixI 'True) (S1 ('MetaSel ('Just "uDouble#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UDouble :: Type -> Type)))

Methods

from :: URec Double p -> Rep (URec Double p) x

to :: Rep (URec Double p) x -> URec Double p

Show (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Double p -> ShowS

show :: URec Double p -> String

showList :: [URec Double p] -> ShowS

Eq (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

(==) :: URec Double p -> URec Double p -> Bool

(/=) :: URec Double p -> URec Double p -> Bool

Ord (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

Methods

compare :: URec Double p -> URec Double p -> Ordering

(<) :: URec Double p -> URec Double p -> Bool

(<=) :: URec Double p -> URec Double p -> Bool

(>) :: URec Double p -> URec Double p -> Bool

(>=) :: URec Double p -> URec Double p -> Bool

max :: URec Double p -> URec Double p -> URec Double p

min :: URec Double p -> URec Double p -> URec Double p

data URec Double (p :: k)

Used for marking occurrences of Double#

Since: base-4.9.0.0

Defined in GHC.Generics

data URec Double (p :: k) = UDouble {

• uDouble# :: Double#

}

type Rep1 (URec Double :: k -> Type)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep1 (URec Double :: k -> Type) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UDouble" 'PrefixI 'True) (S1 ('MetaSel ('Just "uDouble#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UDouble :: k -> Type)))

type Rep (URec Double p)

Since: base-4.9.0.0

Defined in GHC.Generics

type Rep (URec Double p) = D1 ('MetaData "URec" "GHC.Generics" "base" 'False) (C1 ('MetaCons "UDouble" 'PrefixI 'True) (S1 ('MetaSel ('Just "uDouble#") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (UDouble :: Type -> Type)))

undefined :: HasCallStack => a

A special case of error. It is expected that compilers will recognize this and insert error messages which are more appropriate to the context in which undefined appears.

error :: HasCallStack => [Char] -> a

error stops execution and displays an error message.

map :: (a -> b) -> [a] -> [b]

\(\mathcal{O}(n)\). map f xs is the list obtained by applying f to each element of xs, i.e.,

map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn]
map f [x1, x2, ...] == [f x1, f x2, ...]

this means that map id == id

Examples

>>> map (+1) [1, 2, 3]
[2,3,4]

>>> map id [1, 2, 3]
[1,2,3]

>>> map (\n -> 3 * n + 1) [1, 2, 3]
[4,7,10]

length :: Foldable t => t a -> Int

Returns the size/length of a finite structure as an Int. The default implementation just counts elements starting with the leftmost. Instances for structures that can compute the element count faster than via element-by-element counting, should provide a specialised implementation.

Examples

Basic usage:

>>> length []
0

>>> length ['a', 'b', 'c']
3
>>> length [1..]
* Hangs forever *

Since: base-4.8.0.0

mapM :: (Traversable t, Monad m) => (a -> m b) -> t a -> m (t b)

Map each element of a structure to a monadic action, evaluate these actions from left to right, and collect the results. For a version that ignores the results see mapM_.

Examples

mapM is literally a traverse with a type signature restricted to Monad. Its implementation may be more efficient due to additional power of Monad.

mapM_ :: (Foldable t, Monad m) => (a -> m b) -> t a -> m ()

Map each element of a structure to a monadic action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results see mapM.

mapM_ is just like traverse_, but specialised to monadic actions.

when :: Applicative f => Bool -> f () -> f ()

Conditional execution of Applicative expressions. For example,

when debug (putStrLn "Debugging")

will output the string Debugging if the Boolean value debug is True, and otherwise do nothing.

fromIntegral :: (Integral a, Num b) => a -> b

General coercion from Integral types.

WARNING: This function performs silent truncation if the result type is not at least as big as the argument's type.

realToFrac :: (Real a, Fractional b) => a -> b

General coercion to Fractional types.

WARNING: This function goes through the Rational type, which does not have values for NaN for example. This means it does not round-trip.

For Double it also behaves differently with or without -O0:

Prelude> realToFrac nan -- With -O0
-Infinity
Prelude> realToFrac nan
NaN