| 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 |
Data.Int
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 | ||||
Defined in Text.Printf | |||||
| Bits Int | Since: base-2.1 | ||||
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 # bitSize :: Int -> 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 | Since: base-4.6.0.0 | ||||
Defined in GHC.Internal.Bits Methods finiteBitSize :: Int -> Int Source # countLeadingZeros :: Int -> Int Source # countTrailingZeros :: Int -> Int Source # | |||||
| Data Int | Since: base-4.0.0.0 | ||||
Defined in GHC.Internal.Data.Data Methods gfoldl :: (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 | Since: base-2.1 | ||||
| Enum Int | Since: base-2.1 | ||||
Defined in GHC.Internal.Enum | |||||
| Storable Int | Since: base-2.1 | ||||
Defined in GHC.Internal.Foreign.Storable | |||||
| Ix Int | Since: base-2.1 | ||||
| Num Int | Since: base-2.1 | ||||
| Read Int | Since: base-2.1 | ||||
| Integral Int | Since: base-2.0.1 | ||||
| Real Int | Since: base-2.0.1 | ||||
Defined in GHC.Internal.Real Methods toRational :: Int -> Rational Source # | |||||
| Show Int | Since: base-2.1 | ||||
| Eq Int | |||||
| Ord Int | |||||
| Generic1 (URec Int :: k -> Type) | |||||
Defined in GHC.Internal.Generics Associated Types
| |||||
| Foldable (UInt :: Type -> Type) | Since: base-4.9.0.0 | ||||
Defined in GHC.Internal.Data.Foldable Methods fold :: 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 # null :: UInt a -> Bool 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) | Since: base-4.9.0.0 | ||||
Defined in GHC.Internal.Data.Traversable | |||||
| Functor (URec Int :: Type -> Type) | Since: base-4.9.0.0 | ||||
| Generic (URec Int p) | |||||
Defined in GHC.Internal.Generics Associated Types
| |||||
| Show (URec Int p) | Since: base-4.9.0.0 | ||||
| Eq (URec Int p) | Since: base-4.9.0.0 | ||||
| Ord (URec Int p) | Since: base-4.9.0.0 | ||||
Defined in GHC.Internal.Generics Methods compare :: 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) | Used for marking occurrences of Since: base-4.9.0.0 | ||||
| type Rep1 (URec Int :: k -> Type) | Since: base-4.9.0.0 | ||||
Defined in GHC.Internal.Generics | |||||
| type Rep (URec Int p) | Since: base-4.9.0.0 | ||||
Defined in GHC.Internal.Generics | |||||
8-bit signed integer type
Instances
| PrintfArg Int8 Source # | Since: base-2.1 |
Defined in Text.Printf | |
| Bits Int8 | 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 # bitSize :: Int8 -> 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 | Since: base-4.6.0.0 |
Defined in GHC.Internal.Int Methods finiteBitSize :: Int8 -> Int Source # countLeadingZeros :: Int8 -> Int Source # countTrailingZeros :: Int8 -> Int Source # | |
| Data Int8 | Since: base-4.0.0.0 |
Defined in GHC.Internal.Data.Data Methods gfoldl :: (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 | Since: base-2.1 |
| Enum Int8 | Since: base-2.1 |
| Storable Int8 | Since: base-2.1 |
Defined in GHC.Internal.Foreign.Storable Methods sizeOf :: Int8 -> Int Source # alignment :: Int8 -> Int Source # peekElemOff :: Ptr Int8 -> Int -> IO Int8 Source # pokeElemOff :: Ptr Int8 -> Int -> Int8 -> IO () Source # peekByteOff :: Ptr b -> Int -> IO Int8 Source # pokeByteOff :: Ptr b -> Int -> Int8 -> IO () Source # | |
| Ix Int8 | Since: base-2.1 |
Defined in GHC.Internal.Int | |
| Num Int8 | Since: base-2.1 |
| Read Int8 | Since: base-2.1 |
| Integral Int8 | Since: base-2.1 |
Defined in GHC.Internal.Int | |
| Real Int8 | Since: base-2.1 |
Defined in GHC.Internal.Int Methods toRational :: Int8 -> Rational Source # | |
| Show Int8 | Since: base-2.1 |
| Eq Int8 | Since: base-2.1 |
| Ord Int8 | Since: base-2.1 |
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.