Safe Haskell	None
Language	Haskell2010

RIO.Vector.Storable

Contents

Storable vectors
Accessors
Construction
Modifying vectors
- Permutations
- Safe destructive update
Elementwise operations
Working with predicates
Folding
- Specialised folds
- Monadic folds
Prefix sums (scans)
Conversions

Description

Storable Vector. Import as:

import qualified RIO.Vector.Storable as VS

This module does not export any partial or unsafe functions. For those, see RIO.Vector.Storable.Partial and RIO.Vector.Storable.Unsafe

Synopsis

data Vector a
data MVector s a = MVector !Int !(ForeignPtr a)
class Storable a
length :: Storable a => Vector a -> Int
null :: Storable a => Vector a -> Bool
(!?) :: Storable a => Vector a -> Int -> Maybe a
slice :: Storable a => Int -> Int -> Vector a -> Vector a
take :: Storable a => Int -> Vector a -> Vector a
drop :: Storable a => Int -> Vector a -> Vector a
splitAt :: Storable a => Int -> Vector a -> (Vector a, Vector a)
empty :: Storable a => Vector a
singleton :: Storable a => a -> Vector a
replicate :: Storable a => Int -> a -> Vector a
generate :: Storable a => Int -> (Int -> a) -> Vector a
iterateN :: Storable a => Int -> (a -> a) -> a -> Vector a
replicateM :: (Monad m, Storable a) => Int -> m a -> m (Vector a)
generateM :: (Monad m, Storable a) => Int -> (Int -> m a) -> m (Vector a)
iterateNM :: (Monad m, Storable a) => Int -> (a -> m a) -> a -> m (Vector a)
create :: Storable a => (forall s. ST s (MVector s a)) -> Vector a
createT :: (Traversable f, Storable a) => (forall s. ST s (f (MVector s a))) -> f (Vector a)
unfoldr :: Storable a => (b -> Maybe (a, b)) -> b -> Vector a
unfoldrN :: Storable a => Int -> (b -> Maybe (a, b)) -> b -> Vector a
unfoldrM :: (Monad m, Storable a) => (b -> m (Maybe (a, b))) -> b -> m (Vector a)
unfoldrNM :: (Monad m, Storable a) => Int -> (b -> m (Maybe (a, b))) -> b -> m (Vector a)
constructN :: Storable a => Int -> (Vector a -> a) -> Vector a
constructrN :: Storable a => Int -> (Vector a -> a) -> Vector a
enumFromN :: (Storable a, Num a) => a -> Int -> Vector a
enumFromStepN :: (Storable a, Num a) => a -> a -> Int -> Vector a
enumFromTo :: (Storable a, Enum a) => a -> a -> Vector a
enumFromThenTo :: (Storable a, Enum a) => a -> a -> a -> Vector a
cons :: Storable a => a -> Vector a -> Vector a
snoc :: Storable a => Vector a -> a -> Vector a
(++) :: Storable a => Vector a -> Vector a -> Vector a
concat :: Storable a => [Vector a] -> Vector a
force :: Storable a => Vector a -> Vector a
reverse :: Storable a => Vector a -> Vector a
modify :: Storable a => (forall s. MVector s a -> ST s ()) -> Vector a -> Vector a
map :: (Storable a, Storable b) => (a -> b) -> Vector a -> Vector b
imap :: (Storable a, Storable b) => (Int -> a -> b) -> Vector a -> Vector b
concatMap :: (Storable a, Storable b) => (a -> Vector b) -> Vector a -> Vector b
mapM :: (Monad m, Storable a, Storable b) => (a -> m b) -> Vector a -> m (Vector b)
mapM_ :: (Monad m, Storable a) => (a -> m b) -> Vector a -> m ()
forM :: (Monad m, Storable a, Storable b) => Vector a -> (a -> m b) -> m (Vector b)
forM_ :: (Monad m, Storable a) => Vector a -> (a -> m b) -> m ()
zipWith :: (Storable a, Storable b, Storable c) => (a -> b -> c) -> Vector a -> Vector b -> Vector c
zipWith3 :: (Storable a, Storable b, Storable c, Storable d) => (a -> b -> c -> d) -> Vector a -> Vector b -> Vector c -> Vector d
zipWith4 :: (Storable a, Storable b, Storable c, Storable d, Storable e) => (a -> b -> c -> d -> e) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e
zipWith5 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f) => (a -> b -> c -> d -> e -> f) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f
zipWith6 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f, Storable g) => (a -> b -> c -> d -> e -> f -> g) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f -> Vector g
izipWith :: (Storable a, Storable b, Storable c) => (Int -> a -> b -> c) -> Vector a -> Vector b -> Vector c
izipWith3 :: (Storable a, Storable b, Storable c, Storable d) => (Int -> a -> b -> c -> d) -> Vector a -> Vector b -> Vector c -> Vector d
izipWith4 :: (Storable a, Storable b, Storable c, Storable d, Storable e) => (Int -> a -> b -> c -> d -> e) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e
izipWith5 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f) => (Int -> a -> b -> c -> d -> e -> f) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f
izipWith6 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f, Storable g) => (Int -> a -> b -> c -> d -> e -> f -> g) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f -> Vector g
zipWithM :: (Monad m, Storable a, Storable b, Storable c) => (a -> b -> m c) -> Vector a -> Vector b -> m (Vector c)
zipWithM_ :: (Monad m, Storable a, Storable b) => (a -> b -> m c) -> Vector a -> Vector b -> m ()
filter :: Storable a => (a -> Bool) -> Vector a -> Vector a
ifilter :: Storable a => (Int -> a -> Bool) -> Vector a -> Vector a
uniq :: (Storable a, Eq a) => Vector a -> Vector a
mapMaybe :: (Storable a, Storable b) => (a -> Maybe b) -> Vector a -> Vector b
imapMaybe :: (Storable a, Storable b) => (Int -> a -> Maybe b) -> Vector a -> Vector b
filterM :: (Monad m, Storable a) => (a -> m Bool) -> Vector a -> m (Vector a)
takeWhile :: Storable a => (a -> Bool) -> Vector a -> Vector a
dropWhile :: Storable a => (a -> Bool) -> Vector a -> Vector a
partition :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a)
unstablePartition :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a)
span :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a)
break :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a)
elem :: (Storable a, Eq a) => a -> Vector a -> Bool
notElem :: (Storable a, Eq a) => a -> Vector a -> Bool
find :: Storable a => (a -> Bool) -> Vector a -> Maybe a
findIndex :: Storable a => (a -> Bool) -> Vector a -> Maybe Int
findIndices :: Storable a => (a -> Bool) -> Vector a -> Vector Int
elemIndex :: (Storable a, Eq a) => a -> Vector a -> Maybe Int
elemIndices :: (Storable a, Eq a) => a -> Vector a -> Vector Int
foldl :: Storable b => (a -> b -> a) -> a -> Vector b -> a
foldl' :: Storable b => (a -> b -> a) -> a -> Vector b -> a
foldr :: Storable a => (a -> b -> b) -> b -> Vector a -> b
foldr' :: Storable a => (a -> b -> b) -> b -> Vector a -> b
ifoldl :: Storable b => (a -> Int -> b -> a) -> a -> Vector b -> a
ifoldl' :: Storable b => (a -> Int -> b -> a) -> a -> Vector b -> a
ifoldr :: Storable a => (Int -> a -> b -> b) -> b -> Vector a -> b
ifoldr' :: Storable a => (Int -> a -> b -> b) -> b -> Vector a -> b
all :: Storable a => (a -> Bool) -> Vector a -> Bool
any :: Storable a => (a -> Bool) -> Vector a -> Bool
and :: Vector Bool -> Bool
or :: Vector Bool -> Bool
sum :: (Storable a, Num a) => Vector a -> a
product :: (Storable a, Num a) => Vector a -> a
foldM :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m a
foldM' :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m a
foldM_ :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m ()
foldM'_ :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m ()
prescanl :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a
prescanl' :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a
postscanl :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a
postscanl' :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a
scanl :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a
scanl' :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a
prescanr :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b
prescanr' :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b
postscanr :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b
postscanr' :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b
scanr :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b
scanr' :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b
toList :: Storable a => Vector a -> [a]
fromList :: Storable a => [a] -> Vector a
fromListN :: Storable a => Int -> [a] -> Vector a
convert :: (Vector v a, Vector w a) => v a -> w a
freeze :: (Storable a, PrimMonad m) => MVector (PrimState m) a -> m (Vector a)
thaw :: (Storable a, PrimMonad m) => Vector a -> m (MVector (PrimState m) a)
copy :: (Storable a, PrimMonad m) => MVector (PrimState m) a -> Vector a -> m ()

Storable vectors

data Vector a #

Storable-based vectors

Instances

Instances details

NFData1 Vector	Since: vector-0.12.1.0
Instance details Defined in Data.Vector.Storable Methods liftRnf :: (a -> ()) -> Vector a -> () #
Storable a => Vector Vector a
Instance details Defined in Data.Vector.Storable Methods basicUnsafeFreeze :: PrimMonad m => Mutable Vector (PrimState m) a -> m (Vector a) # basicUnsafeThaw :: PrimMonad m => Vector a -> m (Mutable Vector (PrimState m) a) # basicLength :: Vector a -> Int # basicUnsafeSlice :: Int -> Int -> Vector a -> Vector a # basicUnsafeIndexM :: Monad m => Vector a -> Int -> m a # basicUnsafeCopy :: PrimMonad m => Mutable Vector (PrimState m) a -> Vector a -> m () # elemseq :: Vector a -> a -> b -> b #
Storable a => IsList (Vector a)
Instance details Defined in Data.Vector.Storable Associated Types type Item (Vector a) # Methods fromList :: [Item (Vector a)] -> Vector a # fromListN :: Int -> [Item (Vector a)] -> Vector a # toList :: Vector a -> [Item (Vector a)] #
(Storable a, Eq a) => Eq (Vector a)
Instance details Defined in Data.Vector.Storable Methods (==) :: Vector a -> Vector a -> Bool # (/=) :: Vector a -> Vector a -> Bool #
(Data a, Storable a) => Data (Vector a)
Instance details Defined in Data.Vector.Storable Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Vector a -> c (Vector a) # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Vector a) # toConstr :: Vector a -> Constr # dataTypeOf :: Vector a -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Vector a)) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Vector a)) # gmapT :: (forall b. Data b => b -> b) -> Vector a -> Vector a # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Vector a -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Vector a -> r # gmapQ :: (forall d. Data d => d -> u) -> Vector a -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Vector a -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Vector a -> m (Vector a) # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Vector a -> m (Vector a) # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Vector a -> m (Vector a) #
(Storable a, Ord a) => Ord (Vector a)
Instance details Defined in Data.Vector.Storable Methods compare :: Vector a -> Vector a -> Ordering # (<) :: Vector a -> Vector a -> Bool # (<=) :: Vector a -> Vector a -> Bool # (>) :: Vector a -> Vector a -> Bool # (>=) :: Vector a -> Vector a -> Bool # max :: Vector a -> Vector a -> Vector a # min :: Vector a -> Vector a -> Vector a #
(Read a, Storable a) => Read (Vector a)
Instance details Defined in Data.Vector.Storable Methods readsPrec :: Int -> ReadS (Vector a) # readList :: ReadS [Vector a] # readPrec :: ReadPrec (Vector a) # readListPrec :: ReadPrec [Vector a] #
(Show a, Storable a) => Show (Vector a)
Instance details Defined in Data.Vector.Storable Methods showsPrec :: Int -> Vector a -> ShowS # show :: Vector a -> String # showList :: [Vector a] -> ShowS #
Storable a => Semigroup (Vector a)
Instance details Defined in Data.Vector.Storable Methods (<>) :: Vector a -> Vector a -> Vector a # sconcat :: NonEmpty (Vector a) -> Vector a # stimes :: Integral b => b -> Vector a -> Vector a #
Storable a => Monoid (Vector a)
Instance details Defined in Data.Vector.Storable Methods mempty :: Vector a # mappend :: Vector a -> Vector a -> Vector a # mconcat :: [Vector a] -> Vector a #
NFData (Vector a)
Instance details Defined in Data.Vector.Storable Methods rnf :: Vector a -> () #
type Mutable Vector
Instance details Defined in Data.Vector.Storable type Mutable Vector = MVector
type Item (Vector a)
Instance details Defined in Data.Vector.Storable type Item (Vector a) = a

data MVector s a #

Mutable Storable-based vectors

Constructors

MVector !Int !(ForeignPtr a)

Instances

Instances details

Storable a => MVector MVector a
Instance details Defined in Data.Vector.Storable.Mutable Methods basicLength :: MVector s a -> Int # basicUnsafeSlice :: Int -> Int -> MVector s a -> MVector s a # basicOverlaps :: MVector s a -> MVector s a -> Bool # basicUnsafeNew :: PrimMonad m => Int -> m (MVector (PrimState m) a) # basicInitialize :: PrimMonad m => MVector (PrimState m) a -> m () # basicUnsafeReplicate :: PrimMonad m => Int -> a -> m (MVector (PrimState m) a) # basicUnsafeRead :: PrimMonad m => MVector (PrimState m) a -> Int -> m a # basicUnsafeWrite :: PrimMonad m => MVector (PrimState m) a -> Int -> a -> m () # basicClear :: PrimMonad m => MVector (PrimState m) a -> m () # basicSet :: PrimMonad m => MVector (PrimState m) a -> a -> m () # basicUnsafeCopy :: PrimMonad m => MVector (PrimState m) a -> MVector (PrimState m) a -> m () # basicUnsafeMove :: PrimMonad m => MVector (PrimState m) a -> MVector (PrimState m) a -> m () # basicUnsafeGrow :: PrimMonad m => MVector (PrimState m) a -> Int -> m (MVector (PrimState m) a) #
NFData1 (MVector s)
Instance details Defined in Data.Vector.Storable.Mutable Methods liftRnf :: (a -> ()) -> MVector s a -> () #
NFData (MVector s a)
Instance details Defined in Data.Vector.Storable.Mutable Methods rnf :: MVector s a -> () #

class Storable a #

The member functions of this class facilitate writing values of primitive types to raw memory (which may have been allocated with the above mentioned routines) and reading values from blocks of raw memory. The class, furthermore, includes support for computing the storage requirements and alignment restrictions of storable types.

Memory addresses are represented as values of type Ptr a, for some a which is an instance of class Storable. The type argument to Ptr helps provide some valuable type safety in FFI code (you can't mix pointers of different types without an explicit cast), while helping the Haskell type system figure out which marshalling method is needed for a given pointer.

All marshalling between Haskell and a foreign language ultimately boils down to translating Haskell data structures into the binary representation of a corresponding data structure of the foreign language and vice versa. To code this marshalling in Haskell, it is necessary to manipulate primitive data types stored in unstructured memory blocks. The class Storable facilitates this manipulation on all types for which it is instantiated, which are the standard basic types of Haskell, the fixed size Int types (Int8, Int16, Int32, Int64), the fixed size Word types (Word8, Word16, Word32, Word64), StablePtr, all types from Foreign.C.Types, as well as Ptr.

Minimal complete definition

sizeOf, alignment, (peek | peekElemOff | peekByteOff), (poke | pokeElemOff | pokeByteOff)

Instances

Instances details

Storable Bool	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Bool -> Int # alignment :: Bool -> Int # peekElemOff :: Ptr Bool -> Int -> IO Bool # pokeElemOff :: Ptr Bool -> Int -> Bool -> IO () # peekByteOff :: Ptr b -> Int -> IO Bool # pokeByteOff :: Ptr b -> Int -> Bool -> IO () # peek :: Ptr Bool -> IO Bool # poke :: Ptr Bool -> Bool -> IO () #
Storable Char	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Char -> Int # alignment :: Char -> Int # peekElemOff :: Ptr Char -> Int -> IO Char # pokeElemOff :: Ptr Char -> Int -> Char -> IO () # peekByteOff :: Ptr b -> Int -> IO Char # pokeByteOff :: Ptr b -> Int -> Char -> IO () # peek :: Ptr Char -> IO Char # poke :: Ptr Char -> Char -> IO () #
Storable Double	Since: base-2.1
Instance details Defined in Foreign.Storable 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 () #
Storable Float	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Float -> Int # alignment :: Float -> Int # peekElemOff :: Ptr Float -> Int -> IO Float # pokeElemOff :: Ptr Float -> Int -> Float -> IO () # peekByteOff :: Ptr b -> Int -> IO Float # pokeByteOff :: Ptr b -> Int -> Float -> IO () # peek :: Ptr Float -> IO Float # poke :: Ptr Float -> Float -> IO () #
Storable Int	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Int -> Int # alignment :: Int -> Int # peekElemOff :: Ptr Int -> Int -> IO Int # pokeElemOff :: Ptr Int -> Int -> Int -> IO () # peekByteOff :: Ptr b -> Int -> IO Int # pokeByteOff :: Ptr b -> Int -> Int -> IO () # peek :: Ptr Int -> IO Int # poke :: Ptr Int -> Int -> IO () #
Storable Int8	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Int8 -> Int # alignment :: Int8 -> Int # peekElemOff :: Ptr Int8 -> Int -> IO Int8 # pokeElemOff :: Ptr Int8 -> Int -> Int8 -> IO () # peekByteOff :: Ptr b -> Int -> IO Int8 # pokeByteOff :: Ptr b -> Int -> Int8 -> IO () # peek :: Ptr Int8 -> IO Int8 # poke :: Ptr Int8 -> Int8 -> IO () #
Storable Int16	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Int16 -> Int # alignment :: Int16 -> Int # peekElemOff :: Ptr Int16 -> Int -> IO Int16 # pokeElemOff :: Ptr Int16 -> Int -> Int16 -> IO () # peekByteOff :: Ptr b -> Int -> IO Int16 # pokeByteOff :: Ptr b -> Int -> Int16 -> IO () # peek :: Ptr Int16 -> IO Int16 # poke :: Ptr Int16 -> Int16 -> IO () #
Storable Int32	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Int32 -> Int # alignment :: Int32 -> Int # peekElemOff :: Ptr Int32 -> Int -> IO Int32 # pokeElemOff :: Ptr Int32 -> Int -> Int32 -> IO () # peekByteOff :: Ptr b -> Int -> IO Int32 # pokeByteOff :: Ptr b -> Int -> Int32 -> IO () # peek :: Ptr Int32 -> IO Int32 # poke :: Ptr Int32 -> Int32 -> IO () #
Storable Int64	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Int64 -> Int # alignment :: Int64 -> Int # peekElemOff :: Ptr Int64 -> Int -> IO Int64 # pokeElemOff :: Ptr Int64 -> Int -> Int64 -> IO () # peekByteOff :: Ptr b -> Int -> IO Int64 # pokeByteOff :: Ptr b -> Int -> Int64 -> IO () # peek :: Ptr Int64 -> IO Int64 # poke :: Ptr Int64 -> Int64 -> IO () #
Storable Word	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Word -> Int # alignment :: Word -> Int # peekElemOff :: Ptr Word -> Int -> IO Word # pokeElemOff :: Ptr Word -> Int -> Word -> IO () # peekByteOff :: Ptr b -> Int -> IO Word # pokeByteOff :: Ptr b -> Int -> Word -> IO () # peek :: Ptr Word -> IO Word # poke :: Ptr Word -> Word -> IO () #
Storable Word8	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Word8 -> Int # alignment :: Word8 -> Int # peekElemOff :: Ptr Word8 -> Int -> IO Word8 # pokeElemOff :: Ptr Word8 -> Int -> Word8 -> IO () # peekByteOff :: Ptr b -> Int -> IO Word8 # pokeByteOff :: Ptr b -> Int -> Word8 -> IO () # peek :: Ptr Word8 -> IO Word8 # poke :: Ptr Word8 -> Word8 -> IO () #
Storable Word16	Since: base-2.1
Instance details Defined in Foreign.Storable 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 () #
Storable Word32	Since: base-2.1
Instance details 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 () #
Storable Word64	Since: base-2.1
Instance details 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 () #
Storable ()	Since: base-4.9.0.0
Instance details Defined in Foreign.Storable Methods sizeOf :: () -> Int # alignment :: () -> Int # peekElemOff :: Ptr () -> Int -> IO () # pokeElemOff :: Ptr () -> Int -> () -> IO () # peekByteOff :: Ptr b -> Int -> IO () # pokeByteOff :: Ptr b -> Int -> () -> IO () # peek :: Ptr () -> IO () # poke :: Ptr () -> () -> IO () #
Storable CDev
Instance details Defined in System.Posix.Types Methods sizeOf :: CDev -> Int # alignment :: CDev -> Int # peekElemOff :: Ptr CDev -> Int -> IO CDev # pokeElemOff :: Ptr CDev -> Int -> CDev -> IO () # peekByteOff :: Ptr b -> Int -> IO CDev # pokeByteOff :: Ptr b -> Int -> CDev -> IO () # peek :: Ptr CDev -> IO CDev # poke :: Ptr CDev -> CDev -> IO () #
Storable CIno
Instance details Defined in System.Posix.Types Methods sizeOf :: CIno -> Int # alignment :: CIno -> Int # peekElemOff :: Ptr CIno -> Int -> IO CIno # pokeElemOff :: Ptr CIno -> Int -> CIno -> IO () # peekByteOff :: Ptr b -> Int -> IO CIno # pokeByteOff :: Ptr b -> Int -> CIno -> IO () # peek :: Ptr CIno -> IO CIno # poke :: Ptr CIno -> CIno -> IO () #
Storable CMode
Instance details Defined in System.Posix.Types Methods sizeOf :: CMode -> Int # alignment :: CMode -> Int # peekElemOff :: Ptr CMode -> Int -> IO CMode # pokeElemOff :: Ptr CMode -> Int -> CMode -> IO () # peekByteOff :: Ptr b -> Int -> IO CMode # pokeByteOff :: Ptr b -> Int -> CMode -> IO () # peek :: Ptr CMode -> IO CMode # poke :: Ptr CMode -> CMode -> IO () #
Storable COff
Instance details Defined in System.Posix.Types Methods sizeOf :: COff -> Int # alignment :: COff -> Int # peekElemOff :: Ptr COff -> Int -> IO COff # pokeElemOff :: Ptr COff -> Int -> COff -> IO () # peekByteOff :: Ptr b -> Int -> IO COff # pokeByteOff :: Ptr b -> Int -> COff -> IO () # peek :: Ptr COff -> IO COff # poke :: Ptr COff -> COff -> IO () #
Storable CPid
Instance details Defined in System.Posix.Types Methods sizeOf :: CPid -> Int # alignment :: CPid -> Int # peekElemOff :: Ptr CPid -> Int -> IO CPid # pokeElemOff :: Ptr CPid -> Int -> CPid -> IO () # peekByteOff :: Ptr b -> Int -> IO CPid # pokeByteOff :: Ptr b -> Int -> CPid -> IO () # peek :: Ptr CPid -> IO CPid # poke :: Ptr CPid -> CPid -> IO () #
Storable CSsize
Instance details Defined in System.Posix.Types Methods sizeOf :: CSsize -> Int # alignment :: CSsize -> Int # peekElemOff :: Ptr CSsize -> Int -> IO CSsize # pokeElemOff :: Ptr CSsize -> Int -> CSsize -> IO () # peekByteOff :: Ptr b -> Int -> IO CSsize # pokeByteOff :: Ptr b -> Int -> CSsize -> IO () # peek :: Ptr CSsize -> IO CSsize # poke :: Ptr CSsize -> CSsize -> IO () #
Storable CGid
Instance details Defined in System.Posix.Types Methods sizeOf :: CGid -> Int # alignment :: CGid -> Int # peekElemOff :: Ptr CGid -> Int -> IO CGid # pokeElemOff :: Ptr CGid -> Int -> CGid -> IO () # peekByteOff :: Ptr b -> Int -> IO CGid # pokeByteOff :: Ptr b -> Int -> CGid -> IO () # peek :: Ptr CGid -> IO CGid # poke :: Ptr CGid -> CGid -> IO () #
Storable CNlink
Instance details Defined in System.Posix.Types Methods sizeOf :: CNlink -> Int # alignment :: CNlink -> Int # peekElemOff :: Ptr CNlink -> Int -> IO CNlink # pokeElemOff :: Ptr CNlink -> Int -> CNlink -> IO () # peekByteOff :: Ptr b -> Int -> IO CNlink # pokeByteOff :: Ptr b -> Int -> CNlink -> IO () # peek :: Ptr CNlink -> IO CNlink # poke :: Ptr CNlink -> CNlink -> IO () #
Storable CUid
Instance details Defined in System.Posix.Types Methods sizeOf :: CUid -> Int # alignment :: CUid -> Int # peekElemOff :: Ptr CUid -> Int -> IO CUid # pokeElemOff :: Ptr CUid -> Int -> CUid -> IO () # peekByteOff :: Ptr b -> Int -> IO CUid # pokeByteOff :: Ptr b -> Int -> CUid -> IO () # peek :: Ptr CUid -> IO CUid # poke :: Ptr CUid -> CUid -> IO () #
Storable CCc
Instance details Defined in System.Posix.Types Methods sizeOf :: CCc -> Int # alignment :: CCc -> Int # peekElemOff :: Ptr CCc -> Int -> IO CCc # pokeElemOff :: Ptr CCc -> Int -> CCc -> IO () # peekByteOff :: Ptr b -> Int -> IO CCc # pokeByteOff :: Ptr b -> Int -> CCc -> IO () # peek :: Ptr CCc -> IO CCc # poke :: Ptr CCc -> CCc -> IO () #
Storable CSpeed
Instance details Defined in System.Posix.Types Methods sizeOf :: CSpeed -> Int # alignment :: CSpeed -> Int # peekElemOff :: Ptr CSpeed -> Int -> IO CSpeed # pokeElemOff :: Ptr CSpeed -> Int -> CSpeed -> IO () # peekByteOff :: Ptr b -> Int -> IO CSpeed # pokeByteOff :: Ptr b -> Int -> CSpeed -> IO () # peek :: Ptr CSpeed -> IO CSpeed # poke :: Ptr CSpeed -> CSpeed -> IO () #
Storable CTcflag
Instance details Defined in System.Posix.Types Methods sizeOf :: CTcflag -> Int # alignment :: CTcflag -> Int # peekElemOff :: Ptr CTcflag -> Int -> IO CTcflag # pokeElemOff :: Ptr CTcflag -> Int -> CTcflag -> IO () # peekByteOff :: Ptr b -> Int -> IO CTcflag # pokeByteOff :: Ptr b -> Int -> CTcflag -> IO () # peek :: Ptr CTcflag -> IO CTcflag # poke :: Ptr CTcflag -> CTcflag -> IO () #
Storable CRLim
Instance details Defined in System.Posix.Types Methods sizeOf :: CRLim -> Int # alignment :: CRLim -> Int # peekElemOff :: Ptr CRLim -> Int -> IO CRLim # pokeElemOff :: Ptr CRLim -> Int -> CRLim -> IO () # peekByteOff :: Ptr b -> Int -> IO CRLim # pokeByteOff :: Ptr b -> Int -> CRLim -> IO () # peek :: Ptr CRLim -> IO CRLim # poke :: Ptr CRLim -> CRLim -> IO () #
Storable CBlkSize
Instance details Defined in System.Posix.Types Methods sizeOf :: CBlkSize -> Int # alignment :: CBlkSize -> Int # peekElemOff :: Ptr CBlkSize -> Int -> IO CBlkSize # pokeElemOff :: Ptr CBlkSize -> Int -> CBlkSize -> IO () # peekByteOff :: Ptr b -> Int -> IO CBlkSize # pokeByteOff :: Ptr b -> Int -> CBlkSize -> IO () # peek :: Ptr CBlkSize -> IO CBlkSize # poke :: Ptr CBlkSize -> CBlkSize -> IO () #
Storable CBlkCnt
Instance details Defined in System.Posix.Types Methods sizeOf :: CBlkCnt -> Int # alignment :: CBlkCnt -> Int # peekElemOff :: Ptr CBlkCnt -> Int -> IO CBlkCnt # pokeElemOff :: Ptr CBlkCnt -> Int -> CBlkCnt -> IO () # peekByteOff :: Ptr b -> Int -> IO CBlkCnt # pokeByteOff :: Ptr b -> Int -> CBlkCnt -> IO () # peek :: Ptr CBlkCnt -> IO CBlkCnt # poke :: Ptr CBlkCnt -> CBlkCnt -> IO () #
Storable CClockId
Instance details Defined in System.Posix.Types Methods sizeOf :: CClockId -> Int # alignment :: CClockId -> Int # peekElemOff :: Ptr CClockId -> Int -> IO CClockId # pokeElemOff :: Ptr CClockId -> Int -> CClockId -> IO () # peekByteOff :: Ptr b -> Int -> IO CClockId # pokeByteOff :: Ptr b -> Int -> CClockId -> IO () # peek :: Ptr CClockId -> IO CClockId # poke :: Ptr CClockId -> CClockId -> IO () #
Storable CFsBlkCnt
Instance details Defined in System.Posix.Types Methods sizeOf :: CFsBlkCnt -> Int # alignment :: CFsBlkCnt -> Int # peekElemOff :: Ptr CFsBlkCnt -> Int -> IO CFsBlkCnt # pokeElemOff :: Ptr CFsBlkCnt -> Int -> CFsBlkCnt -> IO () # peekByteOff :: Ptr b -> Int -> IO CFsBlkCnt # pokeByteOff :: Ptr b -> Int -> CFsBlkCnt -> IO () # peek :: Ptr CFsBlkCnt -> IO CFsBlkCnt # poke :: Ptr CFsBlkCnt -> CFsBlkCnt -> IO () #
Storable CFsFilCnt
Instance details Defined in System.Posix.Types Methods sizeOf :: CFsFilCnt -> Int # alignment :: CFsFilCnt -> Int # peekElemOff :: Ptr CFsFilCnt -> Int -> IO CFsFilCnt # pokeElemOff :: Ptr CFsFilCnt -> Int -> CFsFilCnt -> IO () # peekByteOff :: Ptr b -> Int -> IO CFsFilCnt # pokeByteOff :: Ptr b -> Int -> CFsFilCnt -> IO () # peek :: Ptr CFsFilCnt -> IO CFsFilCnt # poke :: Ptr CFsFilCnt -> CFsFilCnt -> IO () #
Storable CId
Instance details Defined in System.Posix.Types Methods sizeOf :: CId -> Int # alignment :: CId -> Int # peekElemOff :: Ptr CId -> Int -> IO CId # pokeElemOff :: Ptr CId -> Int -> CId -> IO () # peekByteOff :: Ptr b -> Int -> IO CId # pokeByteOff :: Ptr b -> Int -> CId -> IO () # peek :: Ptr CId -> IO CId # poke :: Ptr CId -> CId -> IO () #
Storable CKey
Instance details Defined in System.Posix.Types Methods sizeOf :: CKey -> Int # alignment :: CKey -> Int # peekElemOff :: Ptr CKey -> Int -> IO CKey # pokeElemOff :: Ptr CKey -> Int -> CKey -> IO () # peekByteOff :: Ptr b -> Int -> IO CKey # pokeByteOff :: Ptr b -> Int -> CKey -> IO () # peek :: Ptr CKey -> IO CKey # poke :: Ptr CKey -> CKey -> IO () #
Storable CTimer
Instance details Defined in System.Posix.Types Methods sizeOf :: CTimer -> Int # alignment :: CTimer -> Int # peekElemOff :: Ptr CTimer -> Int -> IO CTimer # pokeElemOff :: Ptr CTimer -> Int -> CTimer -> IO () # peekByteOff :: Ptr b -> Int -> IO CTimer # pokeByteOff :: Ptr b -> Int -> CTimer -> IO () # peek :: Ptr CTimer -> IO CTimer # poke :: Ptr CTimer -> CTimer -> IO () #
Storable CSocklen
Instance details Defined in System.Posix.Types Methods sizeOf :: CSocklen -> Int # alignment :: CSocklen -> Int # peekElemOff :: Ptr CSocklen -> Int -> IO CSocklen # pokeElemOff :: Ptr CSocklen -> Int -> CSocklen -> IO () # peekByteOff :: Ptr b -> Int -> IO CSocklen # pokeByteOff :: Ptr b -> Int -> CSocklen -> IO () # peek :: Ptr CSocklen -> IO CSocklen # poke :: Ptr CSocklen -> CSocklen -> IO () #
Storable CNfds
Instance details Defined in System.Posix.Types Methods sizeOf :: CNfds -> Int # alignment :: CNfds -> Int # peekElemOff :: Ptr CNfds -> Int -> IO CNfds # pokeElemOff :: Ptr CNfds -> Int -> CNfds -> IO () # peekByteOff :: Ptr b -> Int -> IO CNfds # pokeByteOff :: Ptr b -> Int -> CNfds -> IO () # peek :: Ptr CNfds -> IO CNfds # poke :: Ptr CNfds -> CNfds -> IO () #
Storable Fd
Instance details Defined in System.Posix.Types Methods sizeOf :: Fd -> Int # alignment :: Fd -> Int # peekElemOff :: Ptr Fd -> Int -> IO Fd # pokeElemOff :: Ptr Fd -> Int -> Fd -> IO () # peekByteOff :: Ptr b -> Int -> IO Fd # pokeByteOff :: Ptr b -> Int -> Fd -> IO () # peek :: Ptr Fd -> IO Fd # poke :: Ptr Fd -> Fd -> IO () #
Storable CChar
Instance details Defined in Foreign.C.Types Methods sizeOf :: CChar -> Int # alignment :: CChar -> Int # peekElemOff :: Ptr CChar -> Int -> IO CChar # pokeElemOff :: Ptr CChar -> Int -> CChar -> IO () # peekByteOff :: Ptr b -> Int -> IO CChar # pokeByteOff :: Ptr b -> Int -> CChar -> IO () # peek :: Ptr CChar -> IO CChar # poke :: Ptr CChar -> CChar -> IO () #
Storable CSChar
Instance details Defined in Foreign.C.Types Methods sizeOf :: CSChar -> Int # alignment :: CSChar -> Int # peekElemOff :: Ptr CSChar -> Int -> IO CSChar # pokeElemOff :: Ptr CSChar -> Int -> CSChar -> IO () # peekByteOff :: Ptr b -> Int -> IO CSChar # pokeByteOff :: Ptr b -> Int -> CSChar -> IO () # peek :: Ptr CSChar -> IO CSChar # poke :: Ptr CSChar -> CSChar -> IO () #
Storable CUChar
Instance details Defined in Foreign.C.Types Methods sizeOf :: CUChar -> Int # alignment :: CUChar -> Int # peekElemOff :: Ptr CUChar -> Int -> IO CUChar # pokeElemOff :: Ptr CUChar -> Int -> CUChar -> IO () # peekByteOff :: Ptr b -> Int -> IO CUChar # pokeByteOff :: Ptr b -> Int -> CUChar -> IO () # peek :: Ptr CUChar -> IO CUChar # poke :: Ptr CUChar -> CUChar -> IO () #
Storable CShort
Instance details Defined in Foreign.C.Types Methods sizeOf :: CShort -> Int # alignment :: CShort -> Int # peekElemOff :: Ptr CShort -> Int -> IO CShort # pokeElemOff :: Ptr CShort -> Int -> CShort -> IO () # peekByteOff :: Ptr b -> Int -> IO CShort # pokeByteOff :: Ptr b -> Int -> CShort -> IO () # peek :: Ptr CShort -> IO CShort # poke :: Ptr CShort -> CShort -> IO () #
Storable CUShort
Instance details Defined in Foreign.C.Types Methods sizeOf :: CUShort -> Int # alignment :: CUShort -> Int # peekElemOff :: Ptr CUShort -> Int -> IO CUShort # pokeElemOff :: Ptr CUShort -> Int -> CUShort -> IO () # peekByteOff :: Ptr b -> Int -> IO CUShort # pokeByteOff :: Ptr b -> Int -> CUShort -> IO () # peek :: Ptr CUShort -> IO CUShort # poke :: Ptr CUShort -> CUShort -> IO () #
Storable CInt
Instance details Defined in Foreign.C.Types Methods sizeOf :: CInt -> Int # alignment :: CInt -> Int # peekElemOff :: Ptr CInt -> Int -> IO CInt # pokeElemOff :: Ptr CInt -> Int -> CInt -> IO () # peekByteOff :: Ptr b -> Int -> IO CInt # pokeByteOff :: Ptr b -> Int -> CInt -> IO () # peek :: Ptr CInt -> IO CInt # poke :: Ptr CInt -> CInt -> IO () #
Storable CUInt
Instance details Defined in Foreign.C.Types Methods sizeOf :: CUInt -> Int # alignment :: CUInt -> Int # peekElemOff :: Ptr CUInt -> Int -> IO CUInt # pokeElemOff :: Ptr CUInt -> Int -> CUInt -> IO () # peekByteOff :: Ptr b -> Int -> IO CUInt # pokeByteOff :: Ptr b -> Int -> CUInt -> IO () # peek :: Ptr CUInt -> IO CUInt # poke :: Ptr CUInt -> CUInt -> IO () #
Storable CLong
Instance details Defined in Foreign.C.Types Methods sizeOf :: CLong -> Int # alignment :: CLong -> Int # peekElemOff :: Ptr CLong -> Int -> IO CLong # pokeElemOff :: Ptr CLong -> Int -> CLong -> IO () # peekByteOff :: Ptr b -> Int -> IO CLong # pokeByteOff :: Ptr b -> Int -> CLong -> IO () # peek :: Ptr CLong -> IO CLong # poke :: Ptr CLong -> CLong -> IO () #
Storable CULong
Instance details Defined in Foreign.C.Types 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 () #
Storable CLLong
Instance details Defined in Foreign.C.Types Methods sizeOf :: CLLong -> Int # alignment :: CLLong -> Int # peekElemOff :: Ptr CLLong -> Int -> IO CLLong # pokeElemOff :: Ptr CLLong -> Int -> CLLong -> IO () # peekByteOff :: Ptr b -> Int -> IO CLLong # pokeByteOff :: Ptr b -> Int -> CLLong -> IO () # peek :: Ptr CLLong -> IO CLLong # poke :: Ptr CLLong -> CLLong -> IO () #
Storable CULLong
Instance details Defined in Foreign.C.Types Methods sizeOf :: CULLong -> Int # alignment :: CULLong -> Int # peekElemOff :: Ptr CULLong -> Int -> IO CULLong # pokeElemOff :: Ptr CULLong -> Int -> CULLong -> IO () # peekByteOff :: Ptr b -> Int -> IO CULLong # pokeByteOff :: Ptr b -> Int -> CULLong -> IO () # peek :: Ptr CULLong -> IO CULLong # poke :: Ptr CULLong -> CULLong -> IO () #
Storable CBool
Instance details Defined in Foreign.C.Types Methods sizeOf :: CBool -> Int # alignment :: CBool -> Int # peekElemOff :: Ptr CBool -> Int -> IO CBool # pokeElemOff :: Ptr CBool -> Int -> CBool -> IO () # peekByteOff :: Ptr b -> Int -> IO CBool # pokeByteOff :: Ptr b -> Int -> CBool -> IO () # peek :: Ptr CBool -> IO CBool # poke :: Ptr CBool -> CBool -> IO () #
Storable CFloat
Instance details Defined in Foreign.C.Types 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 () #
Storable CDouble
Instance details 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 () #
Storable CPtrdiff
Instance details Defined in Foreign.C.Types Methods sizeOf :: CPtrdiff -> Int # alignment :: CPtrdiff -> Int # peekElemOff :: Ptr CPtrdiff -> Int -> IO CPtrdiff # pokeElemOff :: Ptr CPtrdiff -> Int -> CPtrdiff -> IO () # peekByteOff :: Ptr b -> Int -> IO CPtrdiff # pokeByteOff :: Ptr b -> Int -> CPtrdiff -> IO () # peek :: Ptr CPtrdiff -> IO CPtrdiff # poke :: Ptr CPtrdiff -> CPtrdiff -> IO () #
Storable CSize
Instance details Defined in Foreign.C.Types Methods sizeOf :: CSize -> Int # alignment :: CSize -> Int # peekElemOff :: Ptr CSize -> Int -> IO CSize # pokeElemOff :: Ptr CSize -> Int -> CSize -> IO () # peekByteOff :: Ptr b -> Int -> IO CSize # pokeByteOff :: Ptr b -> Int -> CSize -> IO () # peek :: Ptr CSize -> IO CSize # poke :: Ptr CSize -> CSize -> IO () #
Storable CWchar
Instance details Defined in Foreign.C.Types Methods sizeOf :: CWchar -> Int # alignment :: CWchar -> Int # peekElemOff :: Ptr CWchar -> Int -> IO CWchar # pokeElemOff :: Ptr CWchar -> Int -> CWchar -> IO () # peekByteOff :: Ptr b -> Int -> IO CWchar # pokeByteOff :: Ptr b -> Int -> CWchar -> IO () # peek :: Ptr CWchar -> IO CWchar # poke :: Ptr CWchar -> CWchar -> IO () #
Storable CSigAtomic
Instance details Defined in Foreign.C.Types Methods sizeOf :: CSigAtomic -> Int # alignment :: CSigAtomic -> Int # peekElemOff :: Ptr CSigAtomic -> Int -> IO CSigAtomic # pokeElemOff :: Ptr CSigAtomic -> Int -> CSigAtomic -> IO () # peekByteOff :: Ptr b -> Int -> IO CSigAtomic # pokeByteOff :: Ptr b -> Int -> CSigAtomic -> IO () # peek :: Ptr CSigAtomic -> IO CSigAtomic # poke :: Ptr CSigAtomic -> CSigAtomic -> IO () #
Storable CClock
Instance details Defined in Foreign.C.Types Methods sizeOf :: CClock -> Int # alignment :: CClock -> Int # peekElemOff :: Ptr CClock -> Int -> IO CClock # pokeElemOff :: Ptr CClock -> Int -> CClock -> IO () # peekByteOff :: Ptr b -> Int -> IO CClock # pokeByteOff :: Ptr b -> Int -> CClock -> IO () # peek :: Ptr CClock -> IO CClock # poke :: Ptr CClock -> CClock -> IO () #
Storable CTime
Instance details Defined in Foreign.C.Types Methods sizeOf :: CTime -> Int # alignment :: CTime -> Int # peekElemOff :: Ptr CTime -> Int -> IO CTime # pokeElemOff :: Ptr CTime -> Int -> CTime -> IO () # peekByteOff :: Ptr b -> Int -> IO CTime # pokeByteOff :: Ptr b -> Int -> CTime -> IO () # peek :: Ptr CTime -> IO CTime # poke :: Ptr CTime -> CTime -> IO () #
Storable CUSeconds
Instance details Defined in Foreign.C.Types Methods sizeOf :: CUSeconds -> Int # alignment :: CUSeconds -> Int # peekElemOff :: Ptr CUSeconds -> Int -> IO CUSeconds # pokeElemOff :: Ptr CUSeconds -> Int -> CUSeconds -> IO () # peekByteOff :: Ptr b -> Int -> IO CUSeconds # pokeByteOff :: Ptr b -> Int -> CUSeconds -> IO () # peek :: Ptr CUSeconds -> IO CUSeconds # poke :: Ptr CUSeconds -> CUSeconds -> IO () #
Storable CSUSeconds
Instance details Defined in Foreign.C.Types Methods sizeOf :: CSUSeconds -> Int # alignment :: CSUSeconds -> Int # peekElemOff :: Ptr CSUSeconds -> Int -> IO CSUSeconds # pokeElemOff :: Ptr CSUSeconds -> Int -> CSUSeconds -> IO () # peekByteOff :: Ptr b -> Int -> IO CSUSeconds # pokeByteOff :: Ptr b -> Int -> CSUSeconds -> IO () # peek :: Ptr CSUSeconds -> IO CSUSeconds # poke :: Ptr CSUSeconds -> CSUSeconds -> IO () #
Storable CIntPtr
Instance details 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 () #
Storable CUIntPtr
Instance details 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 () #
Storable CIntMax
Instance details Defined in Foreign.C.Types Methods sizeOf :: CIntMax -> Int # alignment :: CIntMax -> Int # peekElemOff :: Ptr CIntMax -> Int -> IO CIntMax # pokeElemOff :: Ptr CIntMax -> Int -> CIntMax -> IO () # peekByteOff :: Ptr b -> Int -> IO CIntMax # pokeByteOff :: Ptr b -> Int -> CIntMax -> IO () # peek :: Ptr CIntMax -> IO CIntMax # poke :: Ptr CIntMax -> CIntMax -> IO () #
Storable CUIntMax
Instance details Defined in Foreign.C.Types Methods sizeOf :: CUIntMax -> Int # alignment :: CUIntMax -> Int # peekElemOff :: Ptr CUIntMax -> Int -> IO CUIntMax # pokeElemOff :: Ptr CUIntMax -> Int -> CUIntMax -> IO () # peekByteOff :: Ptr b -> Int -> IO CUIntMax # pokeByteOff :: Ptr b -> Int -> CUIntMax -> IO () # peek :: Ptr CUIntMax -> IO CUIntMax # poke :: Ptr CUIntMax -> CUIntMax -> IO () #
Storable WordPtr
Instance details Defined in Foreign.Ptr Methods sizeOf :: WordPtr -> Int # alignment :: WordPtr -> Int # peekElemOff :: Ptr WordPtr -> Int -> IO WordPtr # pokeElemOff :: Ptr WordPtr -> Int -> WordPtr -> IO () # peekByteOff :: Ptr b -> Int -> IO WordPtr # pokeByteOff :: Ptr b -> Int -> WordPtr -> IO () # peek :: Ptr WordPtr -> IO WordPtr # poke :: Ptr WordPtr -> WordPtr -> IO () #
Storable IntPtr
Instance details Defined in Foreign.Ptr Methods sizeOf :: IntPtr -> Int # alignment :: IntPtr -> Int # peekElemOff :: Ptr IntPtr -> Int -> IO IntPtr # pokeElemOff :: Ptr IntPtr -> Int -> IntPtr -> IO () # peekByteOff :: Ptr b -> Int -> IO IntPtr # pokeByteOff :: Ptr b -> Int -> IntPtr -> IO () # peek :: Ptr IntPtr -> IO IntPtr # poke :: Ptr IntPtr -> IntPtr -> IO () #
Storable Fingerprint	Since: base-4.4.0.0
Instance details Defined in Foreign.Storable Methods sizeOf :: Fingerprint -> Int # alignment :: Fingerprint -> Int # peekElemOff :: Ptr Fingerprint -> Int -> IO Fingerprint # pokeElemOff :: Ptr Fingerprint -> Int -> Fingerprint -> IO () # peekByteOff :: Ptr b -> Int -> IO Fingerprint # pokeByteOff :: Ptr b -> Int -> Fingerprint -> IO () # peek :: Ptr Fingerprint -> IO Fingerprint # poke :: Ptr Fingerprint -> Fingerprint -> IO () #
Storable CodePoint
Instance details Defined in Data.Text.Encoding Methods sizeOf :: CodePoint -> Int # alignment :: CodePoint -> Int # peekElemOff :: Ptr CodePoint -> Int -> IO CodePoint # pokeElemOff :: Ptr CodePoint -> Int -> CodePoint -> IO () # peekByteOff :: Ptr b -> Int -> IO CodePoint # pokeByteOff :: Ptr b -> Int -> CodePoint -> IO () # peek :: Ptr CodePoint -> IO CodePoint # poke :: Ptr CodePoint -> CodePoint -> IO () #
Storable DecoderState
Instance details Defined in Data.Text.Encoding Methods sizeOf :: DecoderState -> Int # alignment :: DecoderState -> Int # peekElemOff :: Ptr DecoderState -> Int -> IO DecoderState # pokeElemOff :: Ptr DecoderState -> Int -> DecoderState -> IO () # peekByteOff :: Ptr b -> Int -> IO DecoderState # pokeByteOff :: Ptr b -> Int -> DecoderState -> IO () # peek :: Ptr DecoderState -> IO DecoderState # poke :: Ptr DecoderState -> DecoderState -> IO () #
(Storable a, Integral a) => Storable (Ratio a)	Since: base-4.8.0.0
Instance details Defined in Foreign.Storable Methods sizeOf :: Ratio a -> Int # alignment :: Ratio a -> Int # peekElemOff :: Ptr (Ratio a) -> Int -> IO (Ratio a) # pokeElemOff :: Ptr (Ratio a) -> Int -> Ratio a -> IO () # peekByteOff :: Ptr b -> Int -> IO (Ratio a) # pokeByteOff :: Ptr b -> Int -> Ratio a -> IO () # peek :: Ptr (Ratio a) -> IO (Ratio a) # poke :: Ptr (Ratio a) -> Ratio a -> IO () #
Storable (StablePtr a)	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: StablePtr a -> Int # alignment :: StablePtr a -> Int # peekElemOff :: Ptr (StablePtr a) -> Int -> IO (StablePtr a) # pokeElemOff :: Ptr (StablePtr a) -> Int -> StablePtr a -> IO () # peekByteOff :: Ptr b -> Int -> IO (StablePtr a) # pokeByteOff :: Ptr b -> Int -> StablePtr a -> IO () # peek :: Ptr (StablePtr a) -> IO (StablePtr a) # poke :: Ptr (StablePtr a) -> StablePtr a -> IO () #
Storable (Ptr a)	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: Ptr a -> Int # alignment :: Ptr a -> Int # peekElemOff :: Ptr (Ptr a) -> Int -> IO (Ptr a) # pokeElemOff :: Ptr (Ptr a) -> Int -> Ptr a -> IO () # peekByteOff :: Ptr b -> Int -> IO (Ptr a) # pokeByteOff :: Ptr b -> Int -> Ptr a -> IO () # peek :: Ptr (Ptr a) -> IO (Ptr a) # poke :: Ptr (Ptr a) -> Ptr a -> IO () #
Storable (FunPtr a)	Since: base-2.1
Instance details Defined in Foreign.Storable Methods sizeOf :: FunPtr a -> Int # alignment :: FunPtr a -> Int # peekElemOff :: Ptr (FunPtr a) -> Int -> IO (FunPtr a) # pokeElemOff :: Ptr (FunPtr a) -> Int -> FunPtr a -> IO () # peekByteOff :: Ptr b -> Int -> IO (FunPtr a) # pokeByteOff :: Ptr b -> Int -> FunPtr a -> IO () # peek :: Ptr (FunPtr a) -> IO (FunPtr a) # poke :: Ptr (FunPtr a) -> FunPtr a -> IO () #
Storable a => Storable (Complex a)	Since: base-4.8.0.0
Instance details Defined in Data.Complex Methods sizeOf :: Complex a -> Int # alignment :: Complex a -> Int # peekElemOff :: Ptr (Complex a) -> Int -> IO (Complex a) # pokeElemOff :: Ptr (Complex a) -> Int -> Complex a -> IO () # peekByteOff :: Ptr b -> Int -> IO (Complex a) # pokeByteOff :: Ptr b -> Int -> Complex a -> IO () # peek :: Ptr (Complex a) -> IO (Complex a) # poke :: Ptr (Complex a) -> Complex a -> IO () #
Storable a => Storable (Identity a)	Since: base-4.9.0.0
Instance details Defined in Data.Functor.Identity Methods sizeOf :: Identity a -> Int # alignment :: Identity a -> Int # peekElemOff :: Ptr (Identity a) -> Int -> IO (Identity a) # pokeElemOff :: Ptr (Identity a) -> Int -> Identity a -> IO () # peekByteOff :: Ptr b -> Int -> IO (Identity a) # pokeByteOff :: Ptr b -> Int -> Identity a -> IO () # peek :: Ptr (Identity a) -> IO (Identity a) # poke :: Ptr (Identity a) -> Identity a -> IO () #
Storable a => Storable (Down a)	Since: base-4.14.0.0
Instance details Defined in Data.Ord Methods sizeOf :: Down a -> Int # alignment :: Down a -> Int # peekElemOff :: Ptr (Down a) -> Int -> IO (Down a) # pokeElemOff :: Ptr (Down a) -> Int -> Down a -> IO () # peekByteOff :: Ptr b -> Int -> IO (Down a) # pokeByteOff :: Ptr b -> Int -> Down a -> IO () # peek :: Ptr (Down a) -> IO (Down a) # poke :: Ptr (Down a) -> Down a -> IO () #
Prim a => Storable (PrimStorable a)
Instance details Defined in Data.Primitive.Types Methods sizeOf :: PrimStorable a -> Int # alignment :: PrimStorable a -> Int # peekElemOff :: Ptr (PrimStorable a) -> Int -> IO (PrimStorable a) # pokeElemOff :: Ptr (PrimStorable a) -> Int -> PrimStorable a -> IO () # peekByteOff :: Ptr b -> Int -> IO (PrimStorable a) # pokeByteOff :: Ptr b -> Int -> PrimStorable a -> IO () # peek :: Ptr (PrimStorable a) -> IO (PrimStorable a) # poke :: Ptr (PrimStorable a) -> PrimStorable a -> IO () #
Storable a => Storable (Const a b)	Since: base-4.9.0.0
Instance details Defined in Data.Functor.Const Methods sizeOf :: Const a b -> Int # alignment :: Const a b -> Int # peekElemOff :: Ptr (Const a b) -> Int -> IO (Const a b) # pokeElemOff :: Ptr (Const a b) -> Int -> Const a b -> IO () # peekByteOff :: Ptr b0 -> Int -> IO (Const a b) # pokeByteOff :: Ptr b0 -> Int -> Const a b -> IO () # peek :: Ptr (Const a b) -> IO (Const a b) # poke :: Ptr (Const a b) -> Const a b -> IO () #

Accessors

Length information

length :: Storable a => Vector a -> Int #

O(1) Yield the length of the vector

null :: Storable a => Vector a -> Bool #

O(1) Test whether a vector is empty

Indexing

(!?) :: Storable a => Vector a -> Int -> Maybe a #

O(1) Safe indexing

Extracting subvectors

slice #

Arguments

:: Storable a
=> Int	`i` starting index
-> Int	`n` length
-> Vector a
-> Vector a

O(1) Yield a slice of the vector without copying it. The vector must contain at least i+n elements.

take :: Storable a => Int -> Vector a -> Vector a #

O(1) Yield at the first n elements without copying. The vector may contain less than n elements in which case it is returned unchanged.

drop :: Storable a => Int -> Vector a -> Vector a #

O(1) Yield all but the first n elements without copying. The vector may contain less than n elements in which case an empty vector is returned.

splitAt :: Storable a => Int -> Vector a -> (Vector a, Vector a) #

O(1) Yield the first n elements paired with the remainder without copying.

Note that splitAt n v is equivalent to (take n v, drop n v) but slightly more efficient.

Since: vector-0.7.1

Construction

Initialisation

empty :: Storable a => Vector a #

O(1) Empty vector

singleton :: Storable a => a -> Vector a #

O(1) Vector with exactly one element

replicate :: Storable a => Int -> a -> Vector a #

O(n) Vector of the given length with the same value in each position

generate :: Storable a => Int -> (Int -> a) -> Vector a #

O(n) Construct a vector of the given length by applying the function to each index

iterateN :: Storable a => Int -> (a -> a) -> a -> Vector a #

O(n) Apply function \(\max(n - 1, 0)\) times to an initial value, producing a vector of length \(\max(n, 0)\). Zeroth element will contain the initial value, that's why there is one less function application than the number of elements in the produced vector.

\( \underbrace{x, f (x), f (f (x)), \ldots}_{\max(0,n)\rm{~elements}} \)

Examples

Expand

>>> import qualified Data.Vector.Storable as VS
>>> VS.iterateN 0 undefined undefined :: VS.Vector Int
[]
>>> VS.iterateN 26 succ 'a'
"abcdefghijklmnopqrstuvwxyz"

Since: vector-0.7.1

Monadic initialisation

replicateM :: (Monad m, Storable a) => Int -> m a -> m (Vector a) #

O(n) Execute the monadic action the given number of times and store the results in a vector.

generateM :: (Monad m, Storable a) => Int -> (Int -> m a) -> m (Vector a) #

O(n) Construct a vector of the given length by applying the monadic action to each index

iterateNM :: (Monad m, Storable a) => Int -> (a -> m a) -> a -> m (Vector a) #

O(n) Apply monadic function \(\max(n - 1, 0)\) times to an initial value, producing a vector of length \(\max(n, 0)\). Zeroth element will contain the initial value, that's why there is one less function application than the number of elements in the produced vector.

For non-monadic version see iterateN

Since: vector-0.12.0.0

create :: Storable a => (forall s. ST s (MVector s a)) -> Vector a #

Execute the monadic action and freeze the resulting vector.

create (do { v <- new 2; write v 0 'a'; write v 1 'b'; return v }) = <a,b>

createT :: (Traversable f, Storable a) => (forall s. ST s (f (MVector s a))) -> f (Vector a) #

Execute the monadic action and freeze the resulting vectors.

Unfolding

unfoldr :: Storable a => (b -> Maybe (a, b)) -> b -> Vector a #

O(n) Construct a vector by repeatedly applying the generator function to a seed. The generator function yields Just the next element and the new seed or Nothing if there are no more elements.

unfoldr (\n -> if n == 0 then Nothing else Just (n,n-1)) 10
 = <10,9,8,7,6,5,4,3,2,1>

unfoldrN :: Storable a => Int -> (b -> Maybe (a, b)) -> b -> Vector a #

O(n) Construct a vector with at most n elements by repeatedly applying the generator function to a seed. The generator function yields Just the next element and the new seed or Nothing if there are no more elements.

unfoldrN 3 (\n -> Just (n,n-1)) 10 = <10,9,8>

unfoldrM :: (Monad m, Storable a) => (b -> m (Maybe (a, b))) -> b -> m (Vector a) #

O(n) Construct a vector by repeatedly applying the monadic generator function to a seed. The generator function yields Just the next element and the new seed or Nothing if there are no more elements.

unfoldrNM :: (Monad m, Storable a) => Int -> (b -> m (Maybe (a, b))) -> b -> m (Vector a) #

O(n) Construct a vector by repeatedly applying the monadic generator function to a seed. The generator function yields Just the next element and the new seed or Nothing if there are no more elements.

constructN :: Storable a => Int -> (Vector a -> a) -> Vector a #

O(n) Construct a vector with n elements by repeatedly applying the generator function to the already constructed part of the vector.

constructN 3 f = let a = f <> ; b = f <a> ; c = f <a,b> in <a,b,c>

constructrN :: Storable a => Int -> (Vector a -> a) -> Vector a #

O(n) Construct a vector with n elements from right to left by repeatedly applying the generator function to the already constructed part of the vector.

constructrN 3 f = let a = f <> ; b = f<a> ; c = f <b,a> in <c,b,a>

Enumeration

enumFromN :: (Storable a, Num a) => a -> Int -> Vector a #

O(n) Yield a vector of the given length containing the values x, x+1 etc. This operation is usually more efficient than enumFromTo.

enumFromN 5 3 = <5,6,7>

enumFromStepN :: (Storable a, Num a) => a -> a -> Int -> Vector a #

O(n) Yield a vector of the given length containing the values x, x+y, x+y+y etc. This operations is usually more efficient than enumFromThenTo.

enumFromStepN 1 0.1 5 = <1,1.1,1.2,1.3,1.4>

enumFromTo :: (Storable a, Enum a) => a -> a -> Vector a #

O(n) Enumerate values from x to y.

WARNING: This operation can be very inefficient. If at all possible, use enumFromN instead.

enumFromThenTo :: (Storable a, Enum a) => a -> a -> a -> Vector a #

O(n) Enumerate values from x to y with a specific step z.

WARNING: This operation can be very inefficient. If at all possible, use enumFromStepN instead.

Concatenation

cons :: Storable a => a -> Vector a -> Vector a #

O(n) Prepend an element

snoc :: Storable a => Vector a -> a -> Vector a #

O(n) Append an element

(++) :: Storable a => Vector a -> Vector a -> Vector a infixr 5 #

O(m+n) Concatenate two vectors

concat :: Storable a => [Vector a] -> Vector a #

O(n) Concatenate all vectors in the list

Restricting memory usage

force :: Storable a => Vector a -> Vector a #

O(n) Yield the argument but force it not to retain any extra memory, possibly by copying it.

This is especially useful when dealing with slices. For example:

force (slice 0 2 <huge vector>)

Here, the slice retains a reference to the huge vector. Forcing it creates a copy of just the elements that belong to the slice and allows the huge vector to be garbage collected.

Modifying vectors

Permutations

reverse :: Storable a => Vector a -> Vector a #

O(n) Reverse a vector

Safe destructive update

modify :: Storable a => (forall s. MVector s a -> ST s ()) -> Vector a -> Vector a #

Apply a destructive operation to a vector. The operation will be performed in place if it is safe to do so and will modify a copy of the vector otherwise.

modify (\v -> write v 0 'x') (replicate 3 'a') = <'x','a','a'>

Elementwise operations

Mapping

map :: (Storable a, Storable b) => (a -> b) -> Vector a -> Vector b #

O(n) Map a function over a vector

imap :: (Storable a, Storable b) => (Int -> a -> b) -> Vector a -> Vector b #

O(n) Apply a function to every element of a vector and its index

concatMap :: (Storable a, Storable b) => (a -> Vector b) -> Vector a -> Vector b #

Map a function over a vector and concatenate the results.

Monadic mapping

mapM :: (Monad m, Storable a, Storable b) => (a -> m b) -> Vector a -> m (Vector b) #

O(n) Apply the monadic action to all elements of the vector, yielding a vector of results

mapM_ :: (Monad m, Storable a) => (a -> m b) -> Vector a -> m () #

O(n) Apply the monadic action to all elements of a vector and ignore the results

forM :: (Monad m, Storable a, Storable b) => Vector a -> (a -> m b) -> m (Vector b) #

O(n) Apply the monadic action to all elements of the vector, yielding a vector of results. Equivalent to flip mapM.

forM_ :: (Monad m, Storable a) => Vector a -> (a -> m b) -> m () #

O(n) Apply the monadic action to all elements of a vector and ignore the results. Equivalent to flip mapM_.

Zipping

zipWith :: (Storable a, Storable b, Storable c) => (a -> b -> c) -> Vector a -> Vector b -> Vector c #

O(min(m,n)) Zip two vectors with the given function.

zipWith3 :: (Storable a, Storable b, Storable c, Storable d) => (a -> b -> c -> d) -> Vector a -> Vector b -> Vector c -> Vector d #

Zip three vectors with the given function.

zipWith4 :: (Storable a, Storable b, Storable c, Storable d, Storable e) => (a -> b -> c -> d -> e) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e #

zipWith5 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f) => (a -> b -> c -> d -> e -> f) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f #

zipWith6 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f, Storable g) => (a -> b -> c -> d -> e -> f -> g) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f -> Vector g #

izipWith :: (Storable a, Storable b, Storable c) => (Int -> a -> b -> c) -> Vector a -> Vector b -> Vector c #

O(min(m,n)) Zip two vectors with a function that also takes the elements' indices.

izipWith3 :: (Storable a, Storable b, Storable c, Storable d) => (Int -> a -> b -> c -> d) -> Vector a -> Vector b -> Vector c -> Vector d #

Zip three vectors and their indices with the given function.

izipWith4 :: (Storable a, Storable b, Storable c, Storable d, Storable e) => (Int -> a -> b -> c -> d -> e) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e #

izipWith5 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f) => (Int -> a -> b -> c -> d -> e -> f) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f #

izipWith6 :: (Storable a, Storable b, Storable c, Storable d, Storable e, Storable f, Storable g) => (Int -> a -> b -> c -> d -> e -> f -> g) -> Vector a -> Vector b -> Vector c -> Vector d -> Vector e -> Vector f -> Vector g #

Monadic zipping

zipWithM :: (Monad m, Storable a, Storable b, Storable c) => (a -> b -> m c) -> Vector a -> Vector b -> m (Vector c) #

O(min(m,n)) Zip the two vectors with the monadic action and yield a vector of results

zipWithM_ :: (Monad m, Storable a, Storable b) => (a -> b -> m c) -> Vector a -> Vector b -> m () #

O(min(m,n)) Zip the two vectors with the monadic action and ignore the results

Working with predicates

Filtering

filter :: Storable a => (a -> Bool) -> Vector a -> Vector a #

O(n) Drop elements that do not satisfy the predicate

ifilter :: Storable a => (Int -> a -> Bool) -> Vector a -> Vector a #

O(n) Drop elements that do not satisfy the predicate which is applied to values and their indices

uniq :: (Storable a, Eq a) => Vector a -> Vector a #

O(n) Drop repeated adjacent elements.

mapMaybe :: (Storable a, Storable b) => (a -> Maybe b) -> Vector a -> Vector b #

O(n) Drop elements when predicate returns Nothing

imapMaybe :: (Storable a, Storable b) => (Int -> a -> Maybe b) -> Vector a -> Vector b #

O(n) Drop elements when predicate, applied to index and value, returns Nothing

filterM :: (Monad m, Storable a) => (a -> m Bool) -> Vector a -> m (Vector a) #

O(n) Drop elements that do not satisfy the monadic predicate

takeWhile :: Storable a => (a -> Bool) -> Vector a -> Vector a #

O(n) Yield the longest prefix of elements satisfying the predicate. Current implementation is not copy-free, unless the result vector is fused away.

dropWhile :: Storable a => (a -> Bool) -> Vector a -> Vector a #

O(n) Drop the longest prefix of elements that satisfy the predicate without copying.

Partitioning

partition :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a) #

O(n) Split the vector in two parts, the first one containing those elements that satisfy the predicate and the second one those that don't. The relative order of the elements is preserved at the cost of a sometimes reduced performance compared to unstablePartition.

unstablePartition :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a) #

O(n) Split the vector in two parts, the first one containing those elements that satisfy the predicate and the second one those that don't. The order of the elements is not preserved but the operation is often faster than partition.

span :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a) #

O(n) Split the vector into the longest prefix of elements that satisfy the predicate and the rest without copying.

break :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector a) #

O(n) Split the vector into the longest prefix of elements that do not satisfy the predicate and the rest without copying.

Searching

elem :: (Storable a, Eq a) => a -> Vector a -> Bool infix 4 #

O(n) Check if the vector contains an element

notElem :: (Storable a, Eq a) => a -> Vector a -> Bool infix 4 #

O(n) Check if the vector does not contain an element (inverse of elem)

find :: Storable a => (a -> Bool) -> Vector a -> Maybe a #

O(n) Yield Just the first element matching the predicate or Nothing if no such element exists.

findIndex :: Storable a => (a -> Bool) -> Vector a -> Maybe Int #

O(n) Yield Just the index of the first element matching the predicate or Nothing if no such element exists.

findIndices :: Storable a => (a -> Bool) -> Vector a -> Vector Int #

O(n) Yield the indices of elements satisfying the predicate in ascending order.

elemIndex :: (Storable a, Eq a) => a -> Vector a -> Maybe Int #

O(n) Yield Just the index of the first occurence of the given element or Nothing if the vector does not contain the element. This is a specialised version of findIndex.

elemIndices :: (Storable a, Eq a) => a -> Vector a -> Vector Int #

O(n) Yield the indices of all occurences of the given element in ascending order. This is a specialised version of findIndices.

Folding

foldl :: Storable b => (a -> b -> a) -> a -> Vector b -> a #

O(n) Left fold

foldl' :: Storable b => (a -> b -> a) -> a -> Vector b -> a #

O(n) Left fold with strict accumulator

foldr :: Storable a => (a -> b -> b) -> b -> Vector a -> b #

O(n) Right fold

foldr' :: Storable a => (a -> b -> b) -> b -> Vector a -> b #

O(n) Right fold with a strict accumulator

ifoldl :: Storable b => (a -> Int -> b -> a) -> a -> Vector b -> a #

O(n) Left fold (function applied to each element and its index)

ifoldl' :: Storable b => (a -> Int -> b -> a) -> a -> Vector b -> a #

O(n) Left fold with strict accumulator (function applied to each element and its index)

ifoldr :: Storable a => (Int -> a -> b -> b) -> b -> Vector a -> b #

O(n) Right fold (function applied to each element and its index)

ifoldr' :: Storable a => (Int -> a -> b -> b) -> b -> Vector a -> b #

Expand

>>> import qualified Data.Vector.Storable as VS
>>> VS.product $ VS.fromList [1,2,3,4 :: Int]
24
>>> VS.product (VS.empty :: VS.Vector Int)
1

Monadic folds

foldM :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m a #

O(n) Monadic fold

foldM' :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m a #

O(n) Monadic fold with strict accumulator

foldM_ :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m () #

O(n) Monadic fold that discards the result

foldM'_ :: (Monad m, Storable b) => (a -> b -> m a) -> a -> Vector b -> m () #

O(n) Monadic fold with strict accumulator that discards the result

Prefix sums (scans)

prescanl :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a #

O(n) Prescan

prescanl f z = init . scanl f z

Example: prescanl (+) 0 <1,2,3,4> = <0,1,3,6>

prescanl' :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a #

O(n) Prescan with strict accumulator

postscanl :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a #

O(n) Scan

postscanl f z = tail . scanl f z

Example: postscanl (+) 0 <1,2,3,4> = <1,3,6,10>

postscanl' :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a #

O(n) Scan with strict accumulator

scanl :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a #

O(n) Haskell-style scan

scanl f z <x1,...,xn> = <y1,...,y(n+1)>
  where y1 = z
        yi = f y(i-1) x(i-1)

Example: scanl (+) 0 <1,2,3,4> = <0,1,3,6,10>

scanl' :: (Storable a, Storable b) => (a -> b -> a) -> a -> Vector b -> Vector a #

O(n) Haskell-style scan with strict accumulator

prescanr :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b #

O(n) Right-to-left prescan

prescanr f z = reverse . prescanl (flip f) z . reverse

prescanr' :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b #

O(n) Right-to-left prescan with strict accumulator

postscanr :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b #

O(n) Right-to-left scan

postscanr' :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b #

O(n) Right-to-left scan with strict accumulator

scanr :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b #

O(n) Right-to-left Haskell-style scan

scanr' :: (Storable a, Storable b) => (a -> b -> b) -> b -> Vector a -> Vector b #

O(n) Right-to-left Haskell-style scan with strict accumulator

Conversions

Lists

toList :: Storable a => Vector a -> [a] #

O(n) Convert a vector to a list

fromList :: Storable a => [a] -> Vector a #

O(n) Convert a list to a vector

fromListN :: Storable a => Int -> [a] -> Vector a #

O(n) Convert the first n elements of a list to a vector

fromListN n xs = fromList (take n xs)

Examples

Expand

>>> import qualified Data.Vector.Storable as VS
>>> VS.fromListN 3 [1,2,3,4,5::Int]
[1,2,3]
>>> VS.fromListN 3 [1::Int]
[1]

Different vector types

convert :: (Vector v a, Vector w a) => v a -> w a #

O(n) Convert different vector types

Mutable vectors

freeze :: (Storable a, PrimMonad m) => MVector (PrimState m) a -> m (Vector a) #

O(n) Yield an immutable copy of the mutable vector.

thaw :: (Storable a, PrimMonad m) => Vector a -> m (MVector (PrimState m) a) #

O(n) Yield a mutable copy of the immutable vector.

copy :: (Storable a, PrimMonad m) => MVector (PrimState m) a -> Vector a -> m () #

O(n) Copy an immutable vector into a mutable one. The two vectors must have the same length.