Data.Int
| Copyright | (c) The University of Glasgow 2001 |
|---|---|
| License | BSD-style (see the file libraries/base/LICENSE) |
| Maintainer | libraries@haskell.org |
| Stability | stable |
| Portability | portable |
| Safe Haskell | Safe |
| Language | Haskell2010 |
Contents
Description
Signed integer types
Signed integer types
A fixed-precision integer type with at least the range [-2^29 .. 2^29-1]. The exact range for a given implementation can be determined by using minBound and maxBound from the Bounded class.
Instances
| PrintfArg Int Source | Since: base-2.1 |
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Defined in Text.Printf | |||||
| Bits Int Source | Since: base-2.1 |
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Defined in GHC.Internal.Bits Methods(.&.) :: Int -> Int -> Int Source (.|.) :: Int -> Int -> Int Source xor :: Int -> Int -> Int Source complement :: Int -> Int Source shift :: Int -> Int -> Int Source rotate :: Int -> Int -> Int Source setBit :: Int -> Int -> Int Source clearBit :: Int -> Int -> Int Source complementBit :: Int -> Int -> Int Source testBit :: Int -> Int -> Bool Source bitSizeMaybe :: Int -> Maybe Int Source isSigned :: Int -> Bool Source shiftL :: Int -> Int -> Int Source unsafeShiftL :: Int -> Int -> Int Source shiftR :: Int -> Int -> Int Source unsafeShiftR :: Int -> Int -> Int Source rotateL :: Int -> Int -> Int Source | |||||
| FiniteBits Int Source | Since: base-4.6.0.0 |
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Defined in GHC.Internal.Bits MethodsfiniteBitSize :: Int -> Int Source countLeadingZeros :: Int -> Int Source countTrailingZeros :: Int -> Int Source | |||||
| Data Int Source | Since: base-4.0.0.0 |
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Defined in GHC.Internal.Data.Data Methodsgfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Int -> c Int Source gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Int Source toConstr :: Int -> Constr Source dataTypeOf :: Int -> DataType Source dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Int) Source dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Int) Source gmapT :: (forall b. Data b => b -> b) -> Int -> Int Source gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Int -> r Source gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Int -> r Source gmapQ :: (forall d. Data d => d -> u) -> Int -> [u] Source gmapQi :: Int -> (forall d. Data d => d -> u) -> Int -> u Source gmapM :: Monad m => (forall d. Data d => d -> m d) -> Int -> m Int Source gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Int -> m Int Source gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Int -> m Int Source | |||||
| Bounded Int Source | Since: base-2.1 |
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| Enum Int Source | Since: base-2.1 |
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Defined in GHC.Internal.Enum | |||||
| Storable Int Source | Since: base-2.1 |
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Defined in GHC.Internal.Foreign.Storable | |||||
| Ix Int Source | Since: base-2.1 |
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| Num Int Source | Since: base-2.1 |
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| Read Int Source | Since: base-2.1 |
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| Integral Int Source | Since: base-2.0.1 |
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| Real Int Source | Since: base-2.0.1 |
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Defined in GHC.Internal.Real MethodstoRational :: Int -> Rational Source | |||||
| Show Int Source | Since: base-2.1 |
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| Eq Int Source | |||||
| Ord Int Source | |||||
| Lift Int Source | |||||
| Generic1 (URec Int :: k -> Type) Source | |||||
Defined in GHC.Internal.Generics Associated Types
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| Eq1 (UInt :: Type -> Type) Source | Since: base-4.21.0.0 |
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| Ord1 (UInt :: Type -> Type) Source | Since: base-4.21.0.0 |
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Defined in Data.Functor.Classes | |||||
| Show1 (UInt :: Type -> Type) Source | Since: base-4.21.0.0 |
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| Foldable (UInt :: Type -> Type) Source | Since: base-4.9.0.0 |
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Defined in GHC.Internal.Data.Foldable Methodsfold :: Monoid m => UInt m -> m Source foldMap :: Monoid m => (a -> m) -> UInt a -> m Source foldMap' :: Monoid m => (a -> m) -> UInt a -> m Source foldr :: (a -> b -> b) -> b -> UInt a -> b Source foldr' :: (a -> b -> b) -> b -> UInt a -> b Source foldl :: (b -> a -> b) -> b -> UInt a -> b Source foldl' :: (b -> a -> b) -> b -> UInt a -> b Source foldr1 :: (a -> a -> a) -> UInt a -> a Source foldl1 :: (a -> a -> a) -> UInt a -> a Source toList :: UInt a -> [a] Source length :: UInt a -> Int Source elem :: Eq a => a -> UInt a -> Bool Source maximum :: Ord a => UInt a -> a Source minimum :: Ord a => UInt a -> a Source | |||||
| Traversable (UInt :: Type -> Type) Source | Since: base-4.9.0.0 |
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| Functor (URec Int :: Type -> Type) Source | Since: base-4.9.0.0 |
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| Generic (URec Int p) Source | |||||
Defined in GHC.Internal.Generics Associated Types
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| Show (URec Int p) Source | Since: base-4.9.0.0 |
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| Eq (URec Int p) Source | Since: base-4.9.0.0 |
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| Ord (URec Int p) Source | Since: base-4.9.0.0 |
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Defined in GHC.Internal.Generics Methodscompare :: URec Int p -> URec Int p -> Ordering Source (<) :: URec Int p -> URec Int p -> Bool Source (<=) :: URec Int p -> URec Int p -> Bool Source (>) :: URec Int p -> URec Int p -> Bool Source (>=) :: URec Int p -> URec Int p -> Bool Source | |||||
| data URec Int (p :: k) Source |
Used for marking occurrences of Since: base-4.9.0.0 |
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| type Rep1 (URec Int :: k -> Type) Source | Since: base-4.9.0.0 |
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Defined in GHC.Internal.Generics | |||||
| type Rep (URec Int p) Source | Since: base-4.9.0.0 |
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Defined in GHC.Internal.Generics | |||||
8-bit signed integer type
Instances
| PrintfArg Int8 Source | Since: base-2.1 |
Defined in Text.Printf | |
| Bits Int8 Source | Since: base-2.1 |
Defined in GHC.Internal.Int Methods(.&.) :: Int8 -> Int8 -> Int8 Source (.|.) :: Int8 -> Int8 -> Int8 Source xor :: Int8 -> Int8 -> Int8 Source complement :: Int8 -> Int8 Source shift :: Int8 -> Int -> Int8 Source rotate :: Int8 -> Int -> Int8 Source setBit :: Int8 -> Int -> Int8 Source clearBit :: Int8 -> Int -> Int8 Source complementBit :: Int8 -> Int -> Int8 Source testBit :: Int8 -> Int -> Bool Source bitSizeMaybe :: Int8 -> Maybe Int Source isSigned :: Int8 -> Bool Source shiftL :: Int8 -> Int -> Int8 Source unsafeShiftL :: Int8 -> Int -> Int8 Source shiftR :: Int8 -> Int -> Int8 Source unsafeShiftR :: Int8 -> Int -> Int8 Source rotateL :: Int8 -> Int -> Int8 Source | |
| FiniteBits Int8 Source | Since: base-4.6.0.0 |
Defined in GHC.Internal.Int MethodsfiniteBitSize :: Int8 -> Int Source countLeadingZeros :: Int8 -> Int Source countTrailingZeros :: Int8 -> Int Source | |
| Data Int8 Source | Since: base-4.0.0.0 |
Defined in GHC.Internal.Data.Data Methodsgfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Int8 -> c Int8 Source gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Int8 Source toConstr :: Int8 -> Constr Source dataTypeOf :: Int8 -> DataType Source dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Int8) Source dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Int8) Source gmapT :: (forall b. Data b => b -> b) -> Int8 -> Int8 Source gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Int8 -> r Source gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Int8 -> r Source gmapQ :: (forall d. Data d => d -> u) -> Int8 -> [u] Source gmapQi :: Int -> (forall d. Data d => d -> u) -> Int8 -> u Source gmapM :: Monad m => (forall d. Data d => d -> m d) -> Int8 -> m Int8 Source gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Int8 -> m Int8 Source gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Int8 -> m Int8 Source | |
| Bounded Int8 Source | Since: base-2.1 |
| Enum Int8 Source | Since: base-2.1 |
| Storable Int8 Source | Since: base-2.1 |
Defined in GHC.Internal.Foreign.Storable | |
| Ix Int8 Source | Since: base-2.1 |
Defined in GHC.Internal.Int | |
| Num Int8 Source | Since: base-2.1 |
| Read Int8 Source | Since: base-2.1 |
| Integral Int8 Source | Since: base-2.1 |
Defined in GHC.Internal.Int | |
| Real Int8 Source | Since: base-2.1 |
Defined in GHC.Internal.Int MethodstoRational :: Int8 -> Rational Source | |
| Show Int8 Source | Since: base-2.1 |
| Eq Int8 Source | Since: base-2.1 |
| Ord Int8 Source | Since: base-2.1 |
| Lift Int8 Source | |
16-bit signed integer type
Instances
32-bit signed integer type
Instances
64-bit signed integer type
Instances
Notes
- All arithmetic is performed modulo 2^n, where
nis the number of bits in the type. - For coercing between any two integer types, use
fromIntegral, which is specialized for all the common cases so should be fast enough. Coercing word types (see Data.Word) to and from integer types preserves representation, not sign. - The rules that hold for
Enuminstances over a bounded type such asInt(see the section of the Haskell report dealing with arithmetic sequences) also hold for theEnuminstances over the variousInttypes defined here. - Right and left shifts by amounts greater than or equal to the width of the type result in either zero or -1, depending on the sign of the value being shifted. This is contrary to the behaviour in C, which is undefined; a common interpretation is to truncate the shift count to the width of the type, for example
1 << 32 == 1in some C implementations.
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/9.12.1/docs/libraries/base-4.21.0.0-8e62/Data-Int.html