Data.Vector.Generic.Mutable

vector-0.13.2.0: Efficient Arrays

Copyright | (c) Roman Leshchinskiy 2008-2010 Alexey Kuleshevich 2020-2022 Aleksey Khudyakov 2020-2022 Andrew Lelechenko 2020-2022
License | BSD-style
Maintainer | Haskell Libraries Team <libraries@haskell.org>
Stability | experimental
Portability | non-portable
Safe Haskell | None
Language | Haskell2010

Data.Vector.Generic.Mutable

Contents

- Class of mutable vector types
- Accessors
  - Length information
  - Extracting subvectors
  - Overlapping
- Construction
  - Initialisation
  - Growing
  - Restricting memory usage
- Accessing individual elements
- Folds
- Modifying vectors
  - Filling and copying
- Internal operations
- Re-exports

Description

Generic interface to mutable vectors.

Synopsis

- class MVector (v :: Type -> Type -> Type) a where
  - basicLength :: v s a -> Int
  - basicUnsafeSlice :: Int -> Int -> v s a -> v s a
  - basicOverlaps :: v s a -> v s a -> Bool
  - basicUnsafeNew :: Int -> ST s (v s a)
  - basicInitialize :: v s a -> ST s ()
  - basicUnsafeReplicate :: Int -> a -> ST s (v s a)
  - basicUnsafeRead :: v s a -> Int -> ST s a
  - basicUnsafeWrite :: v s a -> Int -> a -> ST s ()
  - basicClear :: v s a -> ST s ()
  - basicSet :: v s a -> a -> ST s ()
  - basicUnsafeCopy :: v s a -> v s a -> ST s ()
  - basicUnsafeMove :: v s a -> v s a -> ST s ()
  - basicUnsafeGrow :: v s a -> Int -> ST s (v s a)
- length :: MVector v a => v s a -> Int
- null :: MVector v a => v s a -> Bool
- slice :: (HasCallStack, MVector v a) => Int -> Int -> v s a -> v s a
- init :: MVector v a => v s a -> v s a
- tail :: MVector v a => v s a -> v s a
- take :: MVector v a => Int -> v s a -> v s a
- drop :: MVector v a => Int -> v s a -> v s a
- splitAt :: MVector v a => Int -> v s a -> (v s a, v s a)
- unsafeSlice :: MVector v a => Int -> Int -> v s a -> v s a
- unsafeInit :: MVector v a => v s a -> v s a
- unsafeTail :: MVector v a => v s a -> v s a
- unsafeTake :: MVector v a => Int -> v s a -> v s a
- unsafeDrop :: MVector v a => Int -> v s a -> v s a
- overlaps :: MVector v a => v s a -> v s a -> Bool
- new :: (HasCallStack, PrimMonad m, MVector v a) => Int -> m (v (PrimState m) a)
- unsafeNew :: (PrimMonad m, MVector v a) => Int -> m (v (PrimState m) a)
- replicate :: (PrimMonad m, MVector v a) => Int -> a -> m (v (PrimState m) a)
- replicateM :: (PrimMonad m, MVector v a) => Int -> m a -> m (v (PrimState m) a)
- generate :: (PrimMonad m, MVector v a) => Int -> (Int -> a) -> m (v (PrimState m) a)
- generateM :: (PrimMonad m, MVector v a) => Int -> (Int -> m a) -> m (v (PrimState m) a)
- clone :: (PrimMonad m, MVector v a) => v (PrimState m) a -> m (v (PrimState m) a)
- grow :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a)
- unsafeGrow :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a)
- growFront :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a)
- unsafeGrowFront :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a)
- clear :: (PrimMonad m, MVector v a) => v (PrimState m) a -> m ()
- read :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m a
- readMaybe :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (Maybe a)
- write :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m ()
- modify :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> a) -> Int -> m ()
- modifyM :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> m a) -> Int -> m ()
- swap :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> Int -> m ()
- exchange :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m a
- unsafeRead :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m a
- unsafeWrite :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m ()
- unsafeModify :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> a) -> Int -> m ()
- unsafeModifyM :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> m a) -> Int -> m ()
- unsafeSwap :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> Int -> m ()
- unsafeExchange :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m a
- mapM_ :: (PrimMonad m, MVector v a) => (a -> m b) -> v (PrimState m) a -> m ()
- imapM_ :: (PrimMonad m, MVector v a) => (Int -> a -> m b) -> v (PrimState m) a -> m ()
- forM_ :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> m b) -> m ()
- iforM_ :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (Int -> a -> m b) -> m ()
- foldl :: (PrimMonad m, MVector v a) => (b -> a -> b) -> b -> v (PrimState m) a -> m b
- foldl' :: (PrimMonad m, MVector v a) => (b -> a -> b) -> b -> v (PrimState m) a -> m b
- foldM :: (PrimMonad m, MVector v a) => (b -> a -> m b) -> b -> v (PrimState m) a -> m b
- foldM' :: (PrimMonad m, MVector v a) => (b -> a -> m b) -> b -> v (PrimState m) a -> m b
- foldr :: (PrimMonad m, MVector v a) => (a -> b -> b) -> b -> v (PrimState m) a -> m b
- foldr' :: (PrimMonad m, MVector v a) => (a -> b -> b) -> b -> v (PrimState m) a -> m b
- foldrM :: (PrimMonad m, MVector v a) => (a -> b -> m b) -> b -> v (PrimState m) a -> m b
- foldrM' :: (PrimMonad m, MVector v a) => (a -> b -> m b) -> b -> v (PrimState m) a -> m b
- ifoldl :: (PrimMonad m, MVector v a) => (b -> Int -> a -> b) -> b -> v (PrimState m) a -> m b
- ifoldl' :: (PrimMonad m, MVector v a) => (b -> Int -> a -> b) -> b -> v (PrimState m) a -> m b
- ifoldM :: (PrimMonad m, MVector v a) => (b -> Int -> a -> m b) -> b -> v (PrimState m) a -> m b
- ifoldM' :: (PrimMonad m, MVector v a) => (b -> Int -> a -> m b) -> b -> v (PrimState m) a -> m b
- ifoldr :: (PrimMonad m, MVector v a) => (Int -> a -> b -> b) -> b -> v (PrimState m) a -> m b
- ifoldr' :: (PrimMonad m, MVector v a) => (Int -> a -> b -> b) -> b -> v (PrimState m) a -> m b
- ifoldrM :: (PrimMonad m, MVector v a) => (Int -> a -> b -> m b) -> b -> v (PrimState m) a -> m b
- ifoldrM' :: (PrimMonad m, MVector v a) => (Int -> a -> b -> m b) -> b -> v (PrimState m) a -> m b
- nextPermutation :: (PrimMonad m, Ord e, MVector v e) => v (PrimState m) e -> m Bool
- nextPermutationBy :: (PrimMonad m, MVector v e) => (e -> e -> Ordering) -> v (PrimState m) e -> m Bool
- prevPermutation :: (PrimMonad m, Ord e, MVector v e) => v (PrimState m) e -> m Bool
- prevPermutationBy :: (PrimMonad m, MVector v e) => (e -> e -> Ordering) -> v (PrimState m) e -> m Bool
- set :: (PrimMonad m, MVector v a) => v (PrimState m) a -> a -> m ()
- copy :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> v (PrimState m) a -> m ()
- move :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> v (PrimState m) a -> m ()
- unsafeCopy :: (PrimMonad m, MVector v a) => v (PrimState m) a -> v (PrimState m) a -> m ()
- unsafeMove :: (PrimMonad m, MVector v a) => v (PrimState m) a -> v (PrimState m) a -> m ()
- mstream :: forall (m :: Type -> Type) v a. (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a
- mstreamR :: forall (m :: Type -> Type) v a. (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a
- unstream :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => Bundle u a -> m (v (PrimState m) a)
- unstreamR :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => Bundle u a -> m (v (PrimState m) a)
- vunstream :: forall m (v :: Type -> Type) a. (PrimMonad m, Vector v a) => Bundle v a -> m (Mutable v (PrimState m) a)
- munstream :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => MBundle m u a -> m (v (PrimState m) a)
- munstreamR :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => MBundle m u a -> m (v (PrimState m) a)
- transform :: (PrimMonad m, MVector v a) => (Stream m a -> Stream m a) -> v (PrimState m) a -> m (v (PrimState m) a)
- transformR :: (PrimMonad m, MVector v a) => (Stream m a -> Stream m a) -> v (PrimState m) a -> m (v (PrimState m) a)
- fill :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a -> m (v (PrimState m) a)
- fillR :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a -> m (v (PrimState m) a)
- unsafeAccum :: forall m v a b (u :: Type -> Type). (PrimMonad m, MVector v a) => (a -> b -> a) -> v (PrimState m) a -> Bundle u (Int, b) -> m ()
- accum :: forall m v a b (u :: Type -> Type). (HasCallStack, PrimMonad m, MVector v a) => (a -> b -> a) -> v (PrimState m) a -> Bundle u (Int, b) -> m ()
- unsafeUpdate :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => v (PrimState m) a -> Bundle u (Int, a) -> m ()
- update :: forall m v a (u :: Type -> Type). (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Bundle u (Int, a) -> m ()
- reverse :: (PrimMonad m, MVector v a) => v (PrimState m) a -> m ()
- unstablePartition :: (PrimMonad m, MVector v a) => (a -> Bool) -> v (PrimState m) a -> m Int
- unstablePartitionBundle :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => (a -> Bool) -> Bundle u a -> m (v (PrimState m) a, v (PrimState m) a)
- partitionBundle :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => (a -> Bool) -> Bundle u a -> m (v (PrimState m) a, v (PrimState m) a)
- partitionWithBundle :: forall m v a b c (u :: Type -> Type). (PrimMonad m, MVector v a, MVector v b, MVector v c) => (a -> Either b c) -> Bundle u a -> m (v (PrimState m) b, v (PrimState m) c)
- class Monad m => PrimMonad (m :: Type -> Type)
- type family PrimState (m :: Type -> Type)
- data RealWorld

# Class of mutable vector types

class MVector (v :: Type -> Type -> Type) a where #

Class of mutable vectors parameterised with a primitive state token.

Minimal complete definition

basicLength, basicUnsafeSlice, basicOverlaps, basicUnsafeNew, basicInitialize, basicUnsafeRead, basicUnsafeWrite

Methods

basicLength :: v s a -> Int #

Length of the mutable vector. This method should not be called directly, use `length` instead.

basicUnsafeSlice #

Arguments

:: Int | starting index
-> Int | length of the slice
-> v s a |
-> v s a |

Yield a part of the mutable vector without copying it. This method should not be called directly, use `unsafeSlice` instead.

basicOverlaps :: v s a -> v s a -> Bool #

Check whether two vectors overlap. This method should not be called directly, use `overlaps` instead.

basicUnsafeNew :: Int -> ST s (v s a) #

Create a mutable vector of the given length. This method should not be called directly, use `unsafeNew` instead.

basicInitialize :: v s a -> ST s () #

Initialize a vector to a standard value. This is intended to be called as part of the safe new operation (and similar operations), to properly blank the newly allocated memory if necessary.

Vectors that are necessarily initialized as part of creation may implement this as a no-op.

Since: 0.11.0.0

basicUnsafeReplicate :: Int -> a -> ST s (v s a) #

Create a mutable vector of the given length and fill it with an initial value. This method should not be called directly, use `replicate` instead.

basicUnsafeRead :: v s a -> Int -> ST s a #

Yield the element at the given position. This method should not be called directly, use `unsafeRead` instead.

basicUnsafeWrite :: v s a -> Int -> a -> ST s () #

Replace the element at the given position. This method should not be called directly, use `unsafeWrite` instead.

basicClear :: v s a -> ST s () #

Reset all elements of the vector to some undefined value, clearing all references to external objects. This is usually a noop for unboxed vectors. This method should not be called directly, use `clear` instead.

basicSet :: v s a -> a -> ST s () #

Set all elements of the vector to the given value. This method should not be called directly, use `set` instead.

basicUnsafeCopy #

Arguments

:: v s a | target
-> v s a | source
-> ST s () |

Copy a vector. The two vectors may not overlap. This method should not be called directly, use `unsafeCopy` instead.

basicUnsafeMove #

Arguments

:: v s a | target
-> v s a | source
-> ST s () |

Move the contents of a vector. The two vectors may overlap. This method should not be called directly, use `unsafeMove` instead.

basicUnsafeGrow :: v s a -> Int -> ST s (v s a) #

Grow a vector by the given number of elements. Allocates a new vector and copies all of the elements over starting at 0 index. This method should not be called directly, use `grow`/`unsafeGrow` instead.

#### Instances

Instances details

MVector MVector a # |
Instance details Defined in Data.Vector.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 :: Int -> ST s (MVector s a) # basicInitialize :: MVector s a -> ST s () # basicUnsafeReplicate :: Int -> a -> ST s (MVector s a) # basicUnsafeRead :: MVector s a -> Int -> ST s a # basicUnsafeWrite :: MVector s a -> Int -> a -> ST s () # basicClear :: MVector s a -> ST s () # basicSet :: MVector s a -> a -> ST s () # basicUnsafeCopy :: MVector s a -> MVector s a -> ST s () # basicUnsafeMove :: MVector s a -> MVector s a -> ST s () # basicUnsafeGrow :: MVector s a -> Int -> ST s (MVector s a) #
Prim a => MVector MVector a # |
Instance details Defined in Data.Vector.Primitive.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 :: Int -> ST s (MVector s a) # basicInitialize :: MVector s a -> ST s () # basicUnsafeReplicate :: Int -> a -> ST s (MVector s a) # basicUnsafeRead :: MVector s a -> Int -> ST s a # basicUnsafeWrite :: MVector s a -> Int -> a -> ST s () # basicClear :: MVector s a -> ST s () # basicSet :: MVector s a -> a -> ST s () # basicUnsafeCopy :: MVector s a -> MVector s a -> ST s () # basicUnsafeMove :: MVector s a -> MVector s a -> ST s () # basicUnsafeGrow :: MVector s a -> Int -> ST s (MVector s a) #
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 :: Int -> ST s (MVector s a) # basicInitialize :: MVector s a -> ST s () # basicUnsafeReplicate :: Int -> a -> ST s (MVector s a) # basicUnsafeRead :: MVector s a -> Int -> ST s a # basicUnsafeWrite :: MVector s a -> Int -> a -> ST s () # basicClear :: MVector s a -> ST s () # basicSet :: MVector s a -> a -> ST s () # basicUnsafeCopy :: MVector s a -> MVector s a -> ST s () # basicUnsafeMove :: MVector s a -> MVector s a -> ST s () # basicUnsafeGrow :: MVector s a -> Int -> ST s (MVector s a) #
MVector MVector a # |
Instance details Defined in Data.Vector.Strict.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 :: Int -> ST s (MVector s a) # basicInitialize :: MVector s a -> ST s () # basicUnsafeReplicate :: Int -> a -> ST s (MVector s a) # basicUnsafeRead :: MVector s a -> Int -> ST s a # basicUnsafeWrite :: MVector s a -> Int -> a -> ST s () # basicClear :: MVector s a -> ST s () # basicSet :: MVector s a -> a -> ST s () # basicUnsafeCopy :: MVector s a -> MVector s a -> ST s () # basicUnsafeMove :: MVector s a -> MVector s a -> ST s () # basicUnsafeGrow :: MVector s a -> Int -> ST s (MVector s a) #
MVector MVector All # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s All -> Int # basicUnsafeSlice :: Int -> Int -> MVector s All -> MVector s All # basicOverlaps :: MVector s All -> MVector s All -> Bool # basicUnsafeNew :: Int -> ST s (MVector s All) # basicInitialize :: MVector s All -> ST s () # basicUnsafeReplicate :: Int -> All -> ST s (MVector s All) # basicUnsafeRead :: MVector s All -> Int -> ST s All # basicUnsafeWrite :: MVector s All -> Int -> All -> ST s () # basicClear :: MVector s All -> ST s () # basicSet :: MVector s All -> All -> ST s () # basicUnsafeCopy :: MVector s All -> MVector s All -> ST s () # basicUnsafeMove :: MVector s All -> MVector s All -> ST s () # basicUnsafeGrow :: MVector s All -> Int -> ST s (MVector s All) #
MVector MVector Any # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Any -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Any -> MVector s Any # basicOverlaps :: MVector s Any -> MVector s Any -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Any) # basicInitialize :: MVector s Any -> ST s () # basicUnsafeReplicate :: Int -> Any -> ST s (MVector s Any) # basicUnsafeRead :: MVector s Any -> Int -> ST s Any # basicUnsafeWrite :: MVector s Any -> Int -> Any -> ST s () # basicClear :: MVector s Any -> ST s () # basicSet :: MVector s Any -> Any -> ST s () # basicUnsafeCopy :: MVector s Any -> MVector s Any -> ST s () # basicUnsafeMove :: MVector s Any -> MVector s Any -> ST s () # basicUnsafeGrow :: MVector s Any -> Int -> ST s (MVector s Any) #
MVector MVector Int16 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Int16 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Int16 -> MVector s Int16 # basicOverlaps :: MVector s Int16 -> MVector s Int16 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Int16) # basicInitialize :: MVector s Int16 -> ST s () # basicUnsafeReplicate :: Int -> Int16 -> ST s (MVector s Int16) # basicUnsafeRead :: MVector s Int16 -> Int -> ST s Int16 # basicUnsafeWrite :: MVector s Int16 -> Int -> Int16 -> ST s () # basicClear :: MVector s Int16 -> ST s () # basicSet :: MVector s Int16 -> Int16 -> ST s () # basicUnsafeCopy :: MVector s Int16 -> MVector s Int16 -> ST s () # basicUnsafeMove :: MVector s Int16 -> MVector s Int16 -> ST s () # basicUnsafeGrow :: MVector s Int16 -> Int -> ST s (MVector s Int16) #
MVector MVector Int32 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Int32 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Int32 -> MVector s Int32 # basicOverlaps :: MVector s Int32 -> MVector s Int32 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Int32) # basicInitialize :: MVector s Int32 -> ST s () # basicUnsafeReplicate :: Int -> Int32 -> ST s (MVector s Int32) # basicUnsafeRead :: MVector s Int32 -> Int -> ST s Int32 # basicUnsafeWrite :: MVector s Int32 -> Int -> Int32 -> ST s () # basicClear :: MVector s Int32 -> ST s () # basicSet :: MVector s Int32 -> Int32 -> ST s () # basicUnsafeCopy :: MVector s Int32 -> MVector s Int32 -> ST s () # basicUnsafeMove :: MVector s Int32 -> MVector s Int32 -> ST s () # basicUnsafeGrow :: MVector s Int32 -> Int -> ST s (MVector s Int32) #
MVector MVector Int64 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Int64 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Int64 -> MVector s Int64 # basicOverlaps :: MVector s Int64 -> MVector s Int64 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Int64) # basicInitialize :: MVector s Int64 -> ST s () # basicUnsafeReplicate :: Int -> Int64 -> ST s (MVector s Int64) # basicUnsafeRead :: MVector s Int64 -> Int -> ST s Int64 # basicUnsafeWrite :: MVector s Int64 -> Int -> Int64 -> ST s () # basicClear :: MVector s Int64 -> ST s () # basicSet :: MVector s Int64 -> Int64 -> ST s () # basicUnsafeCopy :: MVector s Int64 -> MVector s Int64 -> ST s () # basicUnsafeMove :: MVector s Int64 -> MVector s Int64 -> ST s () # basicUnsafeGrow :: MVector s Int64 -> Int -> ST s (MVector s Int64) #
MVector MVector Int8 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Int8 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Int8 -> MVector s Int8 # basicOverlaps :: MVector s Int8 -> MVector s Int8 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Int8) # basicInitialize :: MVector s Int8 -> ST s () # basicUnsafeReplicate :: Int -> Int8 -> ST s (MVector s Int8) # basicUnsafeRead :: MVector s Int8 -> Int -> ST s Int8 # basicUnsafeWrite :: MVector s Int8 -> Int -> Int8 -> ST s () # basicClear :: MVector s Int8 -> ST s () # basicSet :: MVector s Int8 -> Int8 -> ST s () # basicUnsafeCopy :: MVector s Int8 -> MVector s Int8 -> ST s () # basicUnsafeMove :: MVector s Int8 -> MVector s Int8 -> ST s () # basicUnsafeGrow :: MVector s Int8 -> Int -> ST s (MVector s Int8) #
MVector MVector Word16 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Word16 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Word16 -> MVector s Word16 # basicOverlaps :: MVector s Word16 -> MVector s Word16 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Word16) # basicInitialize :: MVector s Word16 -> ST s () # basicUnsafeReplicate :: Int -> Word16 -> ST s (MVector s Word16) # basicUnsafeRead :: MVector s Word16 -> Int -> ST s Word16 # basicUnsafeWrite :: MVector s Word16 -> Int -> Word16 -> ST s () # basicClear :: MVector s Word16 -> ST s () # basicSet :: MVector s Word16 -> Word16 -> ST s () # basicUnsafeCopy :: MVector s Word16 -> MVector s Word16 -> ST s () # basicUnsafeMove :: MVector s Word16 -> MVector s Word16 -> ST s () # basicUnsafeGrow :: MVector s Word16 -> Int -> ST s (MVector s Word16) #
MVector MVector Word32 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Word32 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Word32 -> MVector s Word32 # basicOverlaps :: MVector s Word32 -> MVector s Word32 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Word32) # basicInitialize :: MVector s Word32 -> ST s () # basicUnsafeReplicate :: Int -> Word32 -> ST s (MVector s Word32) # basicUnsafeRead :: MVector s Word32 -> Int -> ST s Word32 # basicUnsafeWrite :: MVector s Word32 -> Int -> Word32 -> ST s () # basicClear :: MVector s Word32 -> ST s () # basicSet :: MVector s Word32 -> Word32 -> ST s () # basicUnsafeCopy :: MVector s Word32 -> MVector s Word32 -> ST s () # basicUnsafeMove :: MVector s Word32 -> MVector s Word32 -> ST s () # basicUnsafeGrow :: MVector s Word32 -> Int -> ST s (MVector s Word32) #
MVector MVector Word64 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Word64 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Word64 -> MVector s Word64 # basicOverlaps :: MVector s Word64 -> MVector s Word64 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Word64) # basicInitialize :: MVector s Word64 -> ST s () # basicUnsafeReplicate :: Int -> Word64 -> ST s (MVector s Word64) # basicUnsafeRead :: MVector s Word64 -> Int -> ST s Word64 # basicUnsafeWrite :: MVector s Word64 -> Int -> Word64 -> ST s () # basicClear :: MVector s Word64 -> ST s () # basicSet :: MVector s Word64 -> Word64 -> ST s () # basicUnsafeCopy :: MVector s Word64 -> MVector s Word64 -> ST s () # basicUnsafeMove :: MVector s Word64 -> MVector s Word64 -> ST s () # basicUnsafeGrow :: MVector s Word64 -> Int -> ST s (MVector s Word64) #
MVector MVector Word8 # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Word8 -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Word8 -> MVector s Word8 # basicOverlaps :: MVector s Word8 -> MVector s Word8 -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Word8) # basicInitialize :: MVector s Word8 -> ST s () # basicUnsafeReplicate :: Int -> Word8 -> ST s (MVector s Word8) # basicUnsafeRead :: MVector s Word8 -> Int -> ST s Word8 # basicUnsafeWrite :: MVector s Word8 -> Int -> Word8 -> ST s () # basicClear :: MVector s Word8 -> ST s () # basicSet :: MVector s Word8 -> Word8 -> ST s () # basicUnsafeCopy :: MVector s Word8 -> MVector s Word8 -> ST s () # basicUnsafeMove :: MVector s Word8 -> MVector s Word8 -> ST s () # basicUnsafeGrow :: MVector s Word8 -> Int -> ST s (MVector s Word8) #
MVector MVector () # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s () -> Int # basicUnsafeSlice :: Int -> Int -> MVector s () -> MVector s () # basicOverlaps :: MVector s () -> MVector s () -> Bool # basicUnsafeNew :: Int -> ST s (MVector s ()) # basicInitialize :: MVector s () -> ST s () # basicUnsafeReplicate :: Int -> () -> ST s (MVector s ()) # basicUnsafeRead :: MVector s () -> Int -> ST s () # basicUnsafeWrite :: MVector s () -> Int -> () -> ST s () # basicClear :: MVector s () -> ST s () # basicSet :: MVector s () -> () -> ST s () # basicUnsafeCopy :: MVector s () -> MVector s () -> ST s () # basicUnsafeMove :: MVector s () -> MVector s () -> ST s () # basicUnsafeGrow :: MVector s () -> Int -> ST s (MVector s ()) #
MVector MVector Bool # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Bool -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Bool -> MVector s Bool # basicOverlaps :: MVector s Bool -> MVector s Bool -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Bool) # basicInitialize :: MVector s Bool -> ST s () # basicUnsafeReplicate :: Int -> Bool -> ST s (MVector s Bool) # basicUnsafeRead :: MVector s Bool -> Int -> ST s Bool # basicUnsafeWrite :: MVector s Bool -> Int -> Bool -> ST s () # basicClear :: MVector s Bool -> ST s () # basicSet :: MVector s Bool -> Bool -> ST s () # basicUnsafeCopy :: MVector s Bool -> MVector s Bool -> ST s () # basicUnsafeMove :: MVector s Bool -> MVector s Bool -> ST s () # basicUnsafeGrow :: MVector s Bool -> Int -> ST s (MVector s Bool) #
MVector MVector Char # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Char -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Char -> MVector s Char # basicOverlaps :: MVector s Char -> MVector s Char -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Char) # basicInitialize :: MVector s Char -> ST s () # basicUnsafeReplicate :: Int -> Char -> ST s (MVector s Char) # basicUnsafeRead :: MVector s Char -> Int -> ST s Char # basicUnsafeWrite :: MVector s Char -> Int -> Char -> ST s () # basicClear :: MVector s Char -> ST s () # basicSet :: MVector s Char -> Char -> ST s () # basicUnsafeCopy :: MVector s Char -> MVector s Char -> ST s () # basicUnsafeMove :: MVector s Char -> MVector s Char -> ST s () # basicUnsafeGrow :: MVector s Char -> Int -> ST s (MVector s Char) #
MVector MVector Double # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Double -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Double -> MVector s Double # basicOverlaps :: MVector s Double -> MVector s Double -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Double) # basicInitialize :: MVector s Double -> ST s () # basicUnsafeReplicate :: Int -> Double -> ST s (MVector s Double) # basicUnsafeRead :: MVector s Double -> Int -> ST s Double # basicUnsafeWrite :: MVector s Double -> Int -> Double -> ST s () # basicClear :: MVector s Double -> ST s () # basicSet :: MVector s Double -> Double -> ST s () # basicUnsafeCopy :: MVector s Double -> MVector s Double -> ST s () # basicUnsafeMove :: MVector s Double -> MVector s Double -> ST s () # basicUnsafeGrow :: MVector s Double -> Int -> ST s (MVector s Double) #
MVector MVector Float # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Float -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Float -> MVector s Float # basicOverlaps :: MVector s Float -> MVector s Float -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Float) # basicInitialize :: MVector s Float -> ST s () # basicUnsafeReplicate :: Int -> Float -> ST s (MVector s Float) # basicUnsafeRead :: MVector s Float -> Int -> ST s Float # basicUnsafeWrite :: MVector s Float -> Int -> Float -> ST s () # basicClear :: MVector s Float -> ST s () # basicSet :: MVector s Float -> Float -> ST s () # basicUnsafeCopy :: MVector s Float -> MVector s Float -> ST s () # basicUnsafeMove :: MVector s Float -> MVector s Float -> ST s () # basicUnsafeGrow :: MVector s Float -> Int -> ST s (MVector s Float) #
MVector MVector Int # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Int -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Int -> MVector s Int # basicOverlaps :: MVector s Int -> MVector s Int -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Int) # basicInitialize :: MVector s Int -> ST s () # basicUnsafeReplicate :: Int -> Int -> ST s (MVector s Int) # basicUnsafeRead :: MVector s Int -> Int -> ST s Int # basicUnsafeWrite :: MVector s Int -> Int -> Int -> ST s () # basicClear :: MVector s Int -> ST s () # basicSet :: MVector s Int -> Int -> ST s () # basicUnsafeCopy :: MVector s Int -> MVector s Int -> ST s () # basicUnsafeMove :: MVector s Int -> MVector s Int -> ST s () # basicUnsafeGrow :: MVector s Int -> Int -> ST s (MVector s Int) #
MVector MVector Word # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s Word -> Int # basicUnsafeSlice :: Int -> Int -> MVector s Word -> MVector s Word # basicOverlaps :: MVector s Word -> MVector s Word -> Bool # basicUnsafeNew :: Int -> ST s (MVector s Word) # basicInitialize :: MVector s Word -> ST s () # basicUnsafeReplicate :: Int -> Word -> ST s (MVector s Word) # basicUnsafeRead :: MVector s Word -> Int -> ST s Word # basicUnsafeWrite :: MVector s Word -> Int -> Word -> ST s () # basicClear :: MVector s Word -> ST s () # basicSet :: MVector s Word -> Word -> ST s () # basicUnsafeCopy :: MVector s Word -> MVector s Word -> ST s () # basicUnsafeMove :: MVector s Word -> MVector s Word -> ST s () # basicUnsafeGrow :: MVector s Word -> Int -> ST s (MVector s Word) #
Unbox a => MVector MVector (Complex a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Complex a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Complex a) -> MVector s (Complex a) # basicOverlaps :: MVector s (Complex a) -> MVector s (Complex a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Complex a)) # basicInitialize :: MVector s (Complex a) -> ST s () # basicUnsafeReplicate :: Int -> Complex a -> ST s (MVector s (Complex a)) # basicUnsafeRead :: MVector s (Complex a) -> Int -> ST s (Complex a) # basicUnsafeWrite :: MVector s (Complex a) -> Int -> Complex a -> ST s () # basicClear :: MVector s (Complex a) -> ST s () # basicSet :: MVector s (Complex a) -> Complex a -> ST s () # basicUnsafeCopy :: MVector s (Complex a) -> MVector s (Complex a) -> ST s () # basicUnsafeMove :: MVector s (Complex a) -> MVector s (Complex a) -> ST s () # basicUnsafeGrow :: MVector s (Complex a) -> Int -> ST s (MVector s (Complex a)) #
Unbox a => MVector MVector (First a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (First a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (First a) -> MVector s (First a) # basicOverlaps :: MVector s (First a) -> MVector s (First a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (First a)) # basicInitialize :: MVector s (First a) -> ST s () # basicUnsafeReplicate :: Int -> First a -> ST s (MVector s (First a)) # basicUnsafeRead :: MVector s (First a) -> Int -> ST s (First a) # basicUnsafeWrite :: MVector s (First a) -> Int -> First a -> ST s () # basicClear :: MVector s (First a) -> ST s () # basicSet :: MVector s (First a) -> First a -> ST s () # basicUnsafeCopy :: MVector s (First a) -> MVector s (First a) -> ST s () # basicUnsafeMove :: MVector s (First a) -> MVector s (First a) -> ST s () # basicUnsafeGrow :: MVector s (First a) -> Int -> ST s (MVector s (First a)) #
Unbox a => MVector MVector (Last a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Last a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Last a) -> MVector s (Last a) # basicOverlaps :: MVector s (Last a) -> MVector s (Last a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Last a)) # basicInitialize :: MVector s (Last a) -> ST s () # basicUnsafeReplicate :: Int -> Last a -> ST s (MVector s (Last a)) # basicUnsafeRead :: MVector s (Last a) -> Int -> ST s (Last a) # basicUnsafeWrite :: MVector s (Last a) -> Int -> Last a -> ST s () # basicClear :: MVector s (Last a) -> ST s () # basicSet :: MVector s (Last a) -> Last a -> ST s () # basicUnsafeCopy :: MVector s (Last a) -> MVector s (Last a) -> ST s () # basicUnsafeMove :: MVector s (Last a) -> MVector s (Last a) -> ST s () # basicUnsafeGrow :: MVector s (Last a) -> Int -> ST s (MVector s (Last a)) #
Unbox a => MVector MVector (Max a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Max a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Max a) -> MVector s (Max a) # basicOverlaps :: MVector s (Max a) -> MVector s (Max a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Max a)) # basicInitialize :: MVector s (Max a) -> ST s () # basicUnsafeReplicate :: Int -> Max a -> ST s (MVector s (Max a)) # basicUnsafeRead :: MVector s (Max a) -> Int -> ST s (Max a) # basicUnsafeWrite :: MVector s (Max a) -> Int -> Max a -> ST s () # basicClear :: MVector s (Max a) -> ST s () # basicSet :: MVector s (Max a) -> Max a -> ST s () # basicUnsafeCopy :: MVector s (Max a) -> MVector s (Max a) -> ST s () # basicUnsafeMove :: MVector s (Max a) -> MVector s (Max a) -> ST s () # basicUnsafeGrow :: MVector s (Max a) -> Int -> ST s (MVector s (Max a)) #
Unbox a => MVector MVector (Min a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Min a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Min a) -> MVector s (Min a) # basicOverlaps :: MVector s (Min a) -> MVector s (Min a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Min a)) # basicInitialize :: MVector s (Min a) -> ST s () # basicUnsafeReplicate :: Int -> Min a -> ST s (MVector s (Min a)) # basicUnsafeRead :: MVector s (Min a) -> Int -> ST s (Min a) # basicUnsafeWrite :: MVector s (Min a) -> Int -> Min a -> ST s () # basicClear :: MVector s (Min a) -> ST s () # basicSet :: MVector s (Min a) -> Min a -> ST s () # basicUnsafeCopy :: MVector s (Min a) -> MVector s (Min a) -> ST s () # basicUnsafeMove :: MVector s (Min a) -> MVector s (Min a) -> ST s () # basicUnsafeGrow :: MVector s (Min a) -> Int -> ST s (MVector s (Min a)) #
Unbox a => MVector MVector (WrappedMonoid a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (WrappedMonoid a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (WrappedMonoid a) -> MVector s (WrappedMonoid a) # basicOverlaps :: MVector s (WrappedMonoid a) -> MVector s (WrappedMonoid a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (WrappedMonoid a)) # basicInitialize :: MVector s (WrappedMonoid a) -> ST s () # basicUnsafeReplicate :: Int -> WrappedMonoid a -> ST s (MVector s (WrappedMonoid a)) # basicUnsafeRead :: MVector s (WrappedMonoid a) -> Int -> ST s (WrappedMonoid a) # basicUnsafeWrite :: MVector s (WrappedMonoid a) -> Int -> WrappedMonoid a -> ST s () # basicClear :: MVector s (WrappedMonoid a) -> ST s () # basicSet :: MVector s (WrappedMonoid a) -> WrappedMonoid a -> ST s () # basicUnsafeCopy :: MVector s (WrappedMonoid a) -> MVector s (WrappedMonoid a) -> ST s () # basicUnsafeMove :: MVector s (WrappedMonoid a) -> MVector s (WrappedMonoid a) -> ST s () # basicUnsafeGrow :: MVector s (WrappedMonoid a) -> Int -> ST s (MVector s (WrappedMonoid a)) #
Unbox a => MVector MVector (Identity a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Identity a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Identity a) -> MVector s (Identity a) # basicOverlaps :: MVector s (Identity a) -> MVector s (Identity a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Identity a)) # basicInitialize :: MVector s (Identity a) -> ST s () # basicUnsafeReplicate :: Int -> Identity a -> ST s (MVector s (Identity a)) # basicUnsafeRead :: MVector s (Identity a) -> Int -> ST s (Identity a) # basicUnsafeWrite :: MVector s (Identity a) -> Int -> Identity a -> ST s () # basicClear :: MVector s (Identity a) -> ST s () # basicSet :: MVector s (Identity a) -> Identity a -> ST s () # basicUnsafeCopy :: MVector s (Identity a) -> MVector s (Identity a) -> ST s () # basicUnsafeMove :: MVector s (Identity a) -> MVector s (Identity a) -> ST s () # basicUnsafeGrow :: MVector s (Identity a) -> Int -> ST s (MVector s (Identity a)) #
Unbox a => MVector MVector (Down a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Down a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Down a) -> MVector s (Down a) # basicOverlaps :: MVector s (Down a) -> MVector s (Down a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Down a)) # basicInitialize :: MVector s (Down a) -> ST s () # basicUnsafeReplicate :: Int -> Down a -> ST s (MVector s (Down a)) # basicUnsafeRead :: MVector s (Down a) -> Int -> ST s (Down a) # basicUnsafeWrite :: MVector s (Down a) -> Int -> Down a -> ST s () # basicClear :: MVector s (Down a) -> ST s () # basicSet :: MVector s (Down a) -> Down a -> ST s () # basicUnsafeCopy :: MVector s (Down a) -> MVector s (Down a) -> ST s () # basicUnsafeMove :: MVector s (Down a) -> MVector s (Down a) -> ST s () # basicUnsafeGrow :: MVector s (Down a) -> Int -> ST s (MVector s (Down a)) #
Unbox a => MVector MVector (Dual a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Dual a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Dual a) -> MVector s (Dual a) # basicOverlaps :: MVector s (Dual a) -> MVector s (Dual a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Dual a)) # basicInitialize :: MVector s (Dual a) -> ST s () # basicUnsafeReplicate :: Int -> Dual a -> ST s (MVector s (Dual a)) # basicUnsafeRead :: MVector s (Dual a) -> Int -> ST s (Dual a) # basicUnsafeWrite :: MVector s (Dual a) -> Int -> Dual a -> ST s () # basicClear :: MVector s (Dual a) -> ST s () # basicSet :: MVector s (Dual a) -> Dual a -> ST s () # basicUnsafeCopy :: MVector s (Dual a) -> MVector s (Dual a) -> ST s () # basicUnsafeMove :: MVector s (Dual a) -> MVector s (Dual a) -> ST s () # basicUnsafeGrow :: MVector s (Dual a) -> Int -> ST s (MVector s (Dual a)) #
Unbox a => MVector MVector (Product a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Product a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Product a) -> MVector s (Product a) # basicOverlaps :: MVector s (Product a) -> MVector s (Product a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Product a)) # basicInitialize :: MVector s (Product a) -> ST s () # basicUnsafeReplicate :: Int -> Product a -> ST s (MVector s (Product a)) # basicUnsafeRead :: MVector s (Product a) -> Int -> ST s (Product a) # basicUnsafeWrite :: MVector s (Product a) -> Int -> Product a -> ST s () # basicClear :: MVector s (Product a) -> ST s () # basicSet :: MVector s (Product a) -> Product a -> ST s () # basicUnsafeCopy :: MVector s (Product a) -> MVector s (Product a) -> ST s () # basicUnsafeMove :: MVector s (Product a) -> MVector s (Product a) -> ST s () # basicUnsafeGrow :: MVector s (Product a) -> Int -> ST s (MVector s (Product a)) #
Unbox a => MVector MVector (Sum a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Sum a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Sum a) -> MVector s (Sum a) # basicOverlaps :: MVector s (Sum a) -> MVector s (Sum a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Sum a)) # basicInitialize :: MVector s (Sum a) -> ST s () # basicUnsafeReplicate :: Int -> Sum a -> ST s (MVector s (Sum a)) # basicUnsafeRead :: MVector s (Sum a) -> Int -> ST s (Sum a) # basicUnsafeWrite :: MVector s (Sum a) -> Int -> Sum a -> ST s () # basicClear :: MVector s (Sum a) -> ST s () # basicSet :: MVector s (Sum a) -> Sum a -> ST s () # basicUnsafeCopy :: MVector s (Sum a) -> MVector s (Sum a) -> ST s () # basicUnsafeMove :: MVector s (Sum a) -> MVector s (Sum a) -> ST s () # basicUnsafeGrow :: MVector s (Sum a) -> Int -> ST s (MVector s (Sum a)) #
MVector MVector (DoNotUnboxLazy a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (DoNotUnboxLazy a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (DoNotUnboxLazy a) -> MVector s (DoNotUnboxLazy a) # basicOverlaps :: MVector s (DoNotUnboxLazy a) -> MVector s (DoNotUnboxLazy a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (DoNotUnboxLazy a)) # basicInitialize :: MVector s (DoNotUnboxLazy a) -> ST s () # basicUnsafeReplicate :: Int -> DoNotUnboxLazy a -> ST s (MVector s (DoNotUnboxLazy a)) # basicUnsafeRead :: MVector s (DoNotUnboxLazy a) -> Int -> ST s (DoNotUnboxLazy a) # basicUnsafeWrite :: MVector s (DoNotUnboxLazy a) -> Int -> DoNotUnboxLazy a -> ST s () # basicClear :: MVector s (DoNotUnboxLazy a) -> ST s () # basicSet :: MVector s (DoNotUnboxLazy a) -> DoNotUnboxLazy a -> ST s () # basicUnsafeCopy :: MVector s (DoNotUnboxLazy a) -> MVector s (DoNotUnboxLazy a) -> ST s () # basicUnsafeMove :: MVector s (DoNotUnboxLazy a) -> MVector s (DoNotUnboxLazy a) -> ST s () # basicUnsafeGrow :: MVector s (DoNotUnboxLazy a) -> Int -> ST s (MVector s (DoNotUnboxLazy a)) #
NFData a => MVector MVector (DoNotUnboxNormalForm a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (DoNotUnboxNormalForm a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (DoNotUnboxNormalForm a) -> MVector s (DoNotUnboxNormalForm a) # basicOverlaps :: MVector s (DoNotUnboxNormalForm a) -> MVector s (DoNotUnboxNormalForm a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (DoNotUnboxNormalForm a)) # basicInitialize :: MVector s (DoNotUnboxNormalForm a) -> ST s () # basicUnsafeReplicate :: Int -> DoNotUnboxNormalForm a -> ST s (MVector s (DoNotUnboxNormalForm a)) # basicUnsafeRead :: MVector s (DoNotUnboxNormalForm a) -> Int -> ST s (DoNotUnboxNormalForm a) # basicUnsafeWrite :: MVector s (DoNotUnboxNormalForm a) -> Int -> DoNotUnboxNormalForm a -> ST s () # basicClear :: MVector s (DoNotUnboxNormalForm a) -> ST s () # basicSet :: MVector s (DoNotUnboxNormalForm a) -> DoNotUnboxNormalForm a -> ST s () # basicUnsafeCopy :: MVector s (DoNotUnboxNormalForm a) -> MVector s (DoNotUnboxNormalForm a) -> ST s () # basicUnsafeMove :: MVector s (DoNotUnboxNormalForm a) -> MVector s (DoNotUnboxNormalForm a) -> ST s () # basicUnsafeGrow :: MVector s (DoNotUnboxNormalForm a) -> Int -> ST s (MVector s (DoNotUnboxNormalForm a)) #
MVector MVector (DoNotUnboxStrict a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (DoNotUnboxStrict a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (DoNotUnboxStrict a) -> MVector s (DoNotUnboxStrict a) # basicOverlaps :: MVector s (DoNotUnboxStrict a) -> MVector s (DoNotUnboxStrict a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (DoNotUnboxStrict a)) # basicInitialize :: MVector s (DoNotUnboxStrict a) -> ST s () # basicUnsafeReplicate :: Int -> DoNotUnboxStrict a -> ST s (MVector s (DoNotUnboxStrict a)) # basicUnsafeRead :: MVector s (DoNotUnboxStrict a) -> Int -> ST s (DoNotUnboxStrict a) # basicUnsafeWrite :: MVector s (DoNotUnboxStrict a) -> Int -> DoNotUnboxStrict a -> ST s () # basicClear :: MVector s (DoNotUnboxStrict a) -> ST s () # basicSet :: MVector s (DoNotUnboxStrict a) -> DoNotUnboxStrict a -> ST s () # basicUnsafeCopy :: MVector s (DoNotUnboxStrict a) -> MVector s (DoNotUnboxStrict a) -> ST s () # basicUnsafeMove :: MVector s (DoNotUnboxStrict a) -> MVector s (DoNotUnboxStrict a) -> ST s () # basicUnsafeGrow :: MVector s (DoNotUnboxStrict a) -> Int -> ST s (MVector s (DoNotUnboxStrict a)) #
Prim a => MVector MVector (UnboxViaPrim a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (UnboxViaPrim a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (UnboxViaPrim a) -> MVector s (UnboxViaPrim a) # basicOverlaps :: MVector s (UnboxViaPrim a) -> MVector s (UnboxViaPrim a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (UnboxViaPrim a)) # basicInitialize :: MVector s (UnboxViaPrim a) -> ST s () # basicUnsafeReplicate :: Int -> UnboxViaPrim a -> ST s (MVector s (UnboxViaPrim a)) # basicUnsafeRead :: MVector s (UnboxViaPrim a) -> Int -> ST s (UnboxViaPrim a) # basicUnsafeWrite :: MVector s (UnboxViaPrim a) -> Int -> UnboxViaPrim a -> ST s () # basicClear :: MVector s (UnboxViaPrim a) -> ST s () # basicSet :: MVector s (UnboxViaPrim a) -> UnboxViaPrim a -> ST s () # basicUnsafeCopy :: MVector s (UnboxViaPrim a) -> MVector s (UnboxViaPrim a) -> ST s () # basicUnsafeMove :: MVector s (UnboxViaPrim a) -> MVector s (UnboxViaPrim a) -> ST s () # basicUnsafeGrow :: MVector s (UnboxViaPrim a) -> Int -> ST s (MVector s (UnboxViaPrim a)) #
(Unbox a, Unbox b) => MVector MVector (Arg a b) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Arg a b) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Arg a b) -> MVector s (Arg a b) # basicOverlaps :: MVector s (Arg a b) -> MVector s (Arg a b) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Arg a b)) # basicInitialize :: MVector s (Arg a b) -> ST s () # basicUnsafeReplicate :: Int -> Arg a b -> ST s (MVector s (Arg a b)) # basicUnsafeRead :: MVector s (Arg a b) -> Int -> ST s (Arg a b) # basicUnsafeWrite :: MVector s (Arg a b) -> Int -> Arg a b -> ST s () # basicClear :: MVector s (Arg a b) -> ST s () # basicSet :: MVector s (Arg a b) -> Arg a b -> ST s () # basicUnsafeCopy :: MVector s (Arg a b) -> MVector s (Arg a b) -> ST s () # basicUnsafeMove :: MVector s (Arg a b) -> MVector s (Arg a b) -> ST s () # basicUnsafeGrow :: MVector s (Arg a b) -> Int -> ST s (MVector s (Arg a b)) #
(IsoUnbox a b, Unbox b) => MVector MVector (As a b) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (As a b) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (As a b) -> MVector s (As a b) # basicOverlaps :: MVector s (As a b) -> MVector s (As a b) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (As a b)) # basicInitialize :: MVector s (As a b) -> ST s () # basicUnsafeReplicate :: Int -> As a b -> ST s (MVector s (As a b)) # basicUnsafeRead :: MVector s (As a b) -> Int -> ST s (As a b) # basicUnsafeWrite :: MVector s (As a b) -> Int -> As a b -> ST s () # basicClear :: MVector s (As a b) -> ST s () # basicSet :: MVector s (As a b) -> As a b -> ST s () # basicUnsafeCopy :: MVector s (As a b) -> MVector s (As a b) -> ST s () # basicUnsafeMove :: MVector s (As a b) -> MVector s (As a b) -> ST s () # basicUnsafeGrow :: MVector s (As a b) -> Int -> ST s (MVector s (As a b)) #
(Unbox a, Unbox b) => MVector MVector (a, b) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (a, b) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (a, b) -> MVector s (a, b) # basicOverlaps :: MVector s (a, b) -> MVector s (a, b) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (a, b)) # basicInitialize :: MVector s (a, b) -> ST s () # basicUnsafeReplicate :: Int -> (a, b) -> ST s (MVector s (a, b)) # basicUnsafeRead :: MVector s (a, b) -> Int -> ST s (a, b) # basicUnsafeWrite :: MVector s (a, b) -> Int -> (a, b) -> ST s () # basicClear :: MVector s (a, b) -> ST s () # basicSet :: MVector s (a, b) -> (a, b) -> ST s () # basicUnsafeCopy :: MVector s (a, b) -> MVector s (a, b) -> ST s () # basicUnsafeMove :: MVector s (a, b) -> MVector s (a, b) -> ST s () # basicUnsafeGrow :: MVector s (a, b) -> Int -> ST s (MVector s (a, b)) #
Unbox a => MVector MVector (Const a b) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Const a b) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Const a b) -> MVector s (Const a b) # basicOverlaps :: MVector s (Const a b) -> MVector s (Const a b) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Const a b)) # basicInitialize :: MVector s (Const a b) -> ST s () # basicUnsafeReplicate :: Int -> Const a b -> ST s (MVector s (Const a b)) # basicUnsafeRead :: MVector s (Const a b) -> Int -> ST s (Const a b) # basicUnsafeWrite :: MVector s (Const a b) -> Int -> Const a b -> ST s () # basicClear :: MVector s (Const a b) -> ST s () # basicSet :: MVector s (Const a b) -> Const a b -> ST s () # basicUnsafeCopy :: MVector s (Const a b) -> MVector s (Const a b) -> ST s () # basicUnsafeMove :: MVector s (Const a b) -> MVector s (Const a b) -> ST s () # basicUnsafeGrow :: MVector s (Const a b) -> Int -> ST s (MVector s (Const a b)) #
Unbox (f a) => MVector MVector (Alt f a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Alt f a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Alt f a) -> MVector s (Alt f a) # basicOverlaps :: MVector s (Alt f a) -> MVector s (Alt f a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Alt f a)) # basicInitialize :: MVector s (Alt f a) -> ST s () # basicUnsafeReplicate :: Int -> Alt f a -> ST s (MVector s (Alt f a)) # basicUnsafeRead :: MVector s (Alt f a) -> Int -> ST s (Alt f a) # basicUnsafeWrite :: MVector s (Alt f a) -> Int -> Alt f a -> ST s () # basicClear :: MVector s (Alt f a) -> ST s () # basicSet :: MVector s (Alt f a) -> Alt f a -> ST s () # basicUnsafeCopy :: MVector s (Alt f a) -> MVector s (Alt f a) -> ST s () # basicUnsafeMove :: MVector s (Alt f a) -> MVector s (Alt f a) -> ST s () # basicUnsafeGrow :: MVector s (Alt f a) -> Int -> ST s (MVector s (Alt f a)) #
(Unbox a, Unbox b, Unbox c) => MVector MVector (a, b, c) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (a, b, c) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (a, b, c) -> MVector s (a, b, c) # basicOverlaps :: MVector s (a, b, c) -> MVector s (a, b, c) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (a, b, c)) # basicInitialize :: MVector s (a, b, c) -> ST s () # basicUnsafeReplicate :: Int -> (a, b, c) -> ST s (MVector s (a, b, c)) # basicUnsafeRead :: MVector s (a, b, c) -> Int -> ST s (a, b, c) # basicUnsafeWrite :: MVector s (a, b, c) -> Int -> (a, b, c) -> ST s () # basicClear :: MVector s (a, b, c) -> ST s () # basicSet :: MVector s (a, b, c) -> (a, b, c) -> ST s () # basicUnsafeCopy :: MVector s (a, b, c) -> MVector s (a, b, c) -> ST s () # basicUnsafeMove :: MVector s (a, b, c) -> MVector s (a, b, c) -> ST s () # basicUnsafeGrow :: MVector s (a, b, c) -> Int -> ST s (MVector s (a, b, c)) #
(Unbox a, Unbox b, Unbox c, Unbox d) => MVector MVector (a, b, c, d) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (a, b, c, d) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (a, b, c, d) -> MVector s (a, b, c, d) # basicOverlaps :: MVector s (a, b, c, d) -> MVector s (a, b, c, d) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (a, b, c, d)) # basicInitialize :: MVector s (a, b, c, d) -> ST s () # basicUnsafeReplicate :: Int -> (a, b, c, d) -> ST s (MVector s (a, b, c, d)) # basicUnsafeRead :: MVector s (a, b, c, d) -> Int -> ST s (a, b, c, d) # basicUnsafeWrite :: MVector s (a, b, c, d) -> Int -> (a, b, c, d) -> ST s () # basicClear :: MVector s (a, b, c, d) -> ST s () # basicSet :: MVector s (a, b, c, d) -> (a, b, c, d) -> ST s () # basicUnsafeCopy :: MVector s (a, b, c, d) -> MVector s (a, b, c, d) -> ST s () # basicUnsafeMove :: MVector s (a, b, c, d) -> MVector s (a, b, c, d) -> ST s () # basicUnsafeGrow :: MVector s (a, b, c, d) -> Int -> ST s (MVector s (a, b, c, d)) #
Unbox (f (g a)) => MVector MVector (Compose f g a) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (Compose f g a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (Compose f g a) -> MVector s (Compose f g a) # basicOverlaps :: MVector s (Compose f g a) -> MVector s (Compose f g a) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (Compose f g a)) # basicInitialize :: MVector s (Compose f g a) -> ST s () # basicUnsafeReplicate :: Int -> Compose f g a -> ST s (MVector s (Compose f g a)) # basicUnsafeRead :: MVector s (Compose f g a) -> Int -> ST s (Compose f g a) # basicUnsafeWrite :: MVector s (Compose f g a) -> Int -> Compose f g a -> ST s () # basicClear :: MVector s (Compose f g a) -> ST s () # basicSet :: MVector s (Compose f g a) -> Compose f g a -> ST s () # basicUnsafeCopy :: MVector s (Compose f g a) -> MVector s (Compose f g a) -> ST s () # basicUnsafeMove :: MVector s (Compose f g a) -> MVector s (Compose f g a) -> ST s () # basicUnsafeGrow :: MVector s (Compose f g a) -> Int -> ST s (MVector s (Compose f g a)) #
(Unbox a, Unbox b, Unbox c, Unbox d, Unbox e) => MVector MVector (a, b, c, d, e) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (a, b, c, d, e) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (a, b, c, d, e) -> MVector s (a, b, c, d, e) # basicOverlaps :: MVector s (a, b, c, d, e) -> MVector s (a, b, c, d, e) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (a, b, c, d, e)) # basicInitialize :: MVector s (a, b, c, d, e) -> ST s () # basicUnsafeReplicate :: Int -> (a, b, c, d, e) -> ST s (MVector s (a, b, c, d, e)) # basicUnsafeRead :: MVector s (a, b, c, d, e) -> Int -> ST s (a, b, c, d, e) # basicUnsafeWrite :: MVector s (a, b, c, d, e) -> Int -> (a, b, c, d, e) -> ST s () # basicClear :: MVector s (a, b, c, d, e) -> ST s () # basicSet :: MVector s (a, b, c, d, e) -> (a, b, c, d, e) -> ST s () # basicUnsafeCopy :: MVector s (a, b, c, d, e) -> MVector s (a, b, c, d, e) -> ST s () # basicUnsafeMove :: MVector s (a, b, c, d, e) -> MVector s (a, b, c, d, e) -> ST s () # basicUnsafeGrow :: MVector s (a, b, c, d, e) -> Int -> ST s (MVector s (a, b, c, d, e)) #
(Unbox a, Unbox b, Unbox c, Unbox d, Unbox e, Unbox f) => MVector MVector (a, b, c, d, e, f) # |
Instance details Defined in Data.Vector.Unboxed.Base Methods basicLength :: MVector s (a, b, c, d, e, f) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (a, b, c, d, e, f) -> MVector s (a, b, c, d, e, f) # basicOverlaps :: MVector s (a, b, c, d, e, f) -> MVector s (a, b, c, d, e, f) -> Bool # basicUnsafeNew :: Int -> ST s (MVector s (a, b, c, d, e, f)) # basicInitialize :: MVector s (a, b, c, d, e, f) -> ST s () # basicUnsafeReplicate :: Int -> (a, b, c, d, e, f) -> ST s (MVector s (a, b, c, d, e, f)) # basicUnsafeRead :: MVector s (a, b, c, d, e, f) -> Int -> ST s (a, b, c, d, e, f) # basicUnsafeWrite :: MVector s (a, b, c, d, e, f) -> Int -> (a, b, c, d, e, f) -> ST s () # basicClear :: MVector s (a, b, c, d, e, f) -> ST s () # basicSet :: MVector s (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> ST s () # basicUnsafeCopy :: MVector s (a, b, c, d, e, f) -> MVector s (a, b, c, d, e, f) -> ST s () # basicUnsafeMove :: MVector s (a, b, c, d, e, f) -> MVector s (a, b, c, d, e, f) -> ST s () # basicUnsafeGrow :: MVector s (a, b, c, d, e, f) -> Int -> ST s (MVector s (a, b, c, d, e, f)) #

# Accessors

## Length information

length :: MVector v a => v s a -> Int #

Length of the mutable vector.

null :: MVector v a => v s a -> Bool #

Check whether the vector is empty.

## Extracting subvectors

slice #

Arguments

:: (HasCallStack, MVector v a) |
=> Int | `i` starting index
-> Int | `n` length
-> v s a |
-> v s a |

Yield a part of the mutable vector without copying it. The vector must contain at least `i+n` elements.

init :: MVector v a => v s a -> v s a #

Drop the last element of the mutable vector without making a copy. If the vector is empty, an exception is thrown.

tail :: MVector v a => v s a -> v s a #

Drop the first element of the mutable vector without making a copy. If the vector is empty, an exception is thrown.

take :: MVector v a => Int -> v s a -> v s a #

Take the `n` first elements of the mutable vector without making a copy. For negative `n`, the empty vector is returned. If `n` is larger than the vector's length, the vector is returned unchanged.

drop :: MVector v a => Int -> v s a -> v s a #

Drop the `n` first element of the mutable vector without making a copy. For negative `n`, the vector is returned unchanged. If `n` is larger than the vector's length, the empty vector is returned.

splitAt :: MVector v a => Int -> v s a -> (v s a, v s a) #

O(1) Split the mutable vector into the first `n` elements and the remainder, without copying.

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

unsafeSlice #

Arguments

:: MVector v a |
=> Int | starting index
-> Int | length of the slice
-> v s a |
-> v s a |

Yield a part of the mutable vector without copying it. No bounds checks are performed.

unsafeInit :: MVector v a => v s a -> v s a #

Same as `init`, but doesn't do range checks.

unsafeTail :: MVector v a => v s a -> v s a #

Same as `tail`, but doesn't do range checks.

unsafeTake :: MVector v a => Int -> v s a -> v s a #

Unsafe variant of `take`. If `n` is out of range, it will simply create an invalid slice that likely violate memory safety.

unsafeDrop :: MVector v a => Int -> v s a -> v s a #

Unsafe variant of `drop`. If `n` is out of range, it will simply create an invalid slice that likely violate memory safety.

## Overlapping

overlaps :: MVector v a => v s a -> v s a -> Bool #

Check whether two vectors overlap.

# Construction

## Initialisation

new :: (HasCallStack, PrimMonad m, MVector v a) => Int -> m (v (PrimState m) a) #

Create a mutable vector of the given length.

unsafeNew :: (PrimMonad m, MVector v a) => Int -> m (v (PrimState m) a) #

Create a mutable vector of the given length. The vector content should be assumed to be uninitialized. However, the exact semantics depend on the vector implementation. For example, unboxed and storable vectors will create a vector filled with whatever the underlying memory buffer happens to contain, while boxed vector's elements are initialized to bottoms which will throw exception when evaluated.

Since: 0.4

replicate :: (PrimMonad m, MVector v a) => Int -> a -> m (v (PrimState m) a) #

Create a mutable vector of the given length (0 if the length is negative) and fill it with an initial value.

replicateM :: (PrimMonad m, MVector v a) => Int -> m a -> m (v (PrimState m) a) #

Create a mutable vector of the given length (0 if the length is negative) and fill it with values produced by repeatedly executing the monadic action.

generate :: (PrimMonad m, MVector v a) => Int -> (Int -> a) -> m (v (PrimState m) a) #

O(n) Create a mutable vector of the given length (0 if the length is negative) and fill it with the results of applying the function to each index. Iteration starts at index 0.

Since: 0.12.3.0

generateM :: (PrimMonad m, MVector v a) => Int -> (Int -> m a) -> m (v (PrimState m) a) #

O(n) Create a mutable vector of the given length (0 if the length is negative) and fill it with the results of applying the monadic function to each index. Iteration starts at index 0.

Since: 0.12.3.0

clone :: (PrimMonad m, MVector v a) => v (PrimState m) a -> m (v (PrimState m) a) #

Create a copy of a mutable vector.

## Growing

grow :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a) #

Grow a vector by the given number of elements. The number must not be negative, otherwise an exception is thrown. The semantics of this function are exactly the same as of `unsafeGrow`, except that it will initialize the newly allocated memory first.

It is important to note that mutating the returned vector will not affect the vector that was used as a source. In other words, it does not, nor will it ever have the semantics of `realloc` from C.

    grow mv 0 === clone mv

Since: 0.4.0

unsafeGrow #

Arguments

:: (PrimMonad m, MVector v a) |
=> v (PrimState m) a | mutable vector to copy from
-> Int | number of elements to grow the vector by (must be non-negative, but this is not checked)
-> m (v (PrimState m) a) |

Grow a vector by allocating a new mutable vector of the same size plus the the given number of elements and copying all the data over to the new vector, starting at its beginning. The newly allocated memory is not initialized and the extra space at the end will likely contain garbage data or bottoms. Use `unsafeGrowFront` to make the extra space available in the front of the new vector.

It is important to note that mutating the returned vector will not affect elements of the vector that was used as a source. In other words, it does not, nor will it ever have the semantics of `realloc` from C. Keep in mind, however, that values themselves can be of a mutable type (eg. `Ptr`), in which case it would be possible to affect values stored in both vectors.

    unsafeGrow mv 0 === clone mv

Since: 0.4.0

growFront :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a) #

Same as `grow`, except that it copies data towards the end of the newly allocated vector, making extra space available at the beginning.

Since: 0.11.0.0

unsafeGrowFront :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (v (PrimState m) a) #

Same as `unsafeGrow`, except that it copies data towards the end of the newly allocated vector, making extra space available at the beginning.

Since: 0.11.0.0

## Restricting memory usage

clear :: (PrimMonad m, MVector v a) => v (PrimState m) a -> m () #

Reset all elements of the vector to some undefined value, clearing all references to external objects. This is usually a noop for unboxed vectors.

# Accessing individual elements

read :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m a #

Yield the element at the given position. Will throw an exception if the index is out of range.

#### Examples

Expand

    >>> import qualified Data.Vector.Strict.Mutable as MV
    >>> v <- MV.generate 10 (\x -> x*x)
    >>> MV.read v 3
    9

readMaybe :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m (Maybe a) #

Yield the element at the given position. Returns `Nothing` if the index is out of range.

#### Examples

Expand

    >>> import qualified Data.Vector.Strict.Mutable as MV
    >>> v <- MV.generate 10 (\x -> x*x)
    >>> MV.readMaybe v 3
    Just 9
    >>> MV.readMaybe v 13
    Nothing

Since: 0.13

write :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m () #

Replace the element at the given position.

modify :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> a) -> Int -> m () #

Modify the element at the given position.

modifyM :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> m a) -> Int -> m () #

Modify the element at the given position using a monadic function.

Since: 0.12.3.0

swap :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> Int -> m () #

Swap the elements at the given positions.

exchange :: (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m a #

Replace the element at the given position and return the old element.

unsafeRead :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> m a #

Yield the element at the given position. No bounds checks are performed.

unsafeWrite :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m () #

Replace the element at the given position. No bounds checks are performed.

unsafeModify :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> a) -> Int -> m () #

Modify the element at the given position. No bounds checks are performed.

unsafeModifyM :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> m a) -> Int -> m () #

Modify the element at the given position using a monadic function. No bounds checks are performed.

Since: 0.12.3.0

unsafeSwap :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> Int -> m () #

Swap the elements at the given positions. No bounds checks are performed.

unsafeExchange :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Int -> a -> m a #

Replace the element at the given position and return the old element. No bounds checks are performed.

# Folds

mapM_ :: (PrimMonad m, MVector v a) => (a -> m b) -> v (PrimState m) a -> m () #

O(n) Apply the monadic action to every element of the vector, discarding the results.

Since: 0.12.3.0

imapM_ :: (PrimMonad m, MVector v a) => (Int -> a -> m b) -> v (PrimState m) a -> m () #

O(n) Apply the monadic action to every element of the vector and its index, discarding the results.

Since: 0.12.3.0

forM_ :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (a -> m b) -> m () #

O(n) Apply the monadic action to every element of the vector, discarding the results. It's the same as `flip mapM_`.

Since: 0.12.3.0

iforM_ :: (PrimMonad m, MVector v a) => v (PrimState m) a -> (Int -> a -> m b) -> m () #

O(n) Apply the monadic action to every element of the vector and its index, discarding the results. It's the same as `flip imapM_`.

Since: 0.12.3.0

foldl :: (PrimMonad m, MVector v a) => (b -> a -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure left fold.

Since: 0.12.3.0

foldl' :: (PrimMonad m, MVector v a) => (b -> a -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure left fold with strict accumulator.

Since: 0.12.3.0

foldM :: (PrimMonad m, MVector v a) => (b -> a -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic fold.

Since: 0.12.3.0

foldM' :: (PrimMonad m, MVector v a) => (b -> a -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic fold with strict accumulator.

Since: 0.12.3.0

foldr :: (PrimMonad m, MVector v a) => (a -> b -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure right fold.

Since: 0.12.3.0

foldr' :: (PrimMonad m, MVector v a) => (a -> b -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure right fold with strict accumulator.

Since: 0.12.3.0

foldrM :: (PrimMonad m, MVector v a) => (a -> b -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic right fold.

Since: 0.12.3.0

foldrM' :: (PrimMonad m, MVector v a) => (a -> b -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic right fold with strict accumulator.

Since: 0.12.3.0

ifoldl :: (PrimMonad m, MVector v a) => (b -> Int -> a -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure left fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldl' :: (PrimMonad m, MVector v a) => (b -> Int -> a -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure left fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

ifoldM :: (PrimMonad m, MVector v a) => (b -> Int -> a -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldM' :: (PrimMonad m, MVector v a) => (b -> Int -> a -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

ifoldr :: (PrimMonad m, MVector v a) => (Int -> a -> b -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure right fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldr' :: (PrimMonad m, MVector v a) => (Int -> a -> b -> b) -> b -> v (PrimState m) a -> m b #

O(n) Pure right fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

ifoldrM :: (PrimMonad m, MVector v a) => (Int -> a -> b -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic right fold using a function applied to each element and its index.

Since: 0.12.3.0

ifoldrM' :: (PrimMonad m, MVector v a) => (Int -> a -> b -> m b) -> b -> v (PrimState m) a -> m b #

O(n) Monadic right fold with strict accumulator using a function applied to each element and its index.

Since: 0.12.3.0

# Modifying vectors

nextPermutation :: (PrimMonad m, Ord e, MVector v e) => v (PrimState m) e -> m Bool #

Compute the (lexicographically) next permutation of the given vector in-place. Returns False when the input is the last item in the enumeration, i.e., if it is in weakly descending order. In this case the vector will not get updated, as opposed to the behavior of the C++ function `std::next_permutation`.

nextPermutationBy :: (PrimMonad m, MVector v e) => (e -> e -> Ordering) -> v (PrimState m) e -> m Bool #

Compute the (lexicographically) next permutation of the given vector in-place, using the provided comparison function. Returns False when the input is the last item in the enumeration, i.e., if it is in weakly descending order. In this case the vector will not get updated, as opposed to the behavior of the C++ function `std::next_permutation`.

Since: 0.13.2.0

prevPermutation :: (PrimMonad m, Ord e, MVector v e) => v (PrimState m) e -> m Bool #

Compute the (lexicographically) previous permutation of the given vector in-place. Returns False when the input is the last item in the enumeration, i.e., if it is in weakly ascending order. In this case the vector will not get updated, as opposed to the behavior of the C++ function `std::prev_permutation`.

Since: 0.13.2.0

prevPermutationBy :: (PrimMonad m, MVector v e) => (e -> e -> Ordering) -> v (PrimState m) e -> m Bool #

Compute the (lexicographically) previous permutation of the given vector in-place, using the provided comparison function. Returns False when the input is the last item in the enumeration, i.e., if it is in weakly ascending order. In this case the vector will not get updated, as opposed to the behavior of the C++ function `std::prev_permutation`.

Since: 0.13.2.0

## Filling and copying

set :: (PrimMonad m, MVector v a) => v (PrimState m) a -> a -> m () #

Set all elements of the vector to the given value.

copy #

Arguments

:: (HasCallStack, PrimMonad m, MVector v a) |
=> v (PrimState m) a | target
-> v (PrimState m) a | source
-> m () |

Copy a vector. The two vectors must have the same length and may not overlap.

move #

Arguments

:: (HasCallStack, PrimMonad m, MVector v a) |
=> v (PrimState m) a | target
-> v (PrimState m) a | source
-> m () |

Move the contents of a vector. The two vectors must have the same length.

If the vectors do not overlap, then this is equivalent to `copy`. Otherwise, the copying is performed as if the source vector were copied to a temporary vector and then the temporary vector was copied to the target vector.

unsafeCopy #

Arguments

:: (PrimMonad m, MVector v a) |
=> v (PrimState m) a | target
-> v (PrimState m) a | source
-> m () |

Copy a vector. The two vectors must have the same length and may not overlap, but this is not checked.

unsafeMove #

Arguments

:: (PrimMonad m, MVector v a) |
=> v (PrimState m) a | target
-> v (PrimState m) a | source
-> m () |

Move the contents of a vector. The two vectors must have the same length, but this is not checked.

If the vectors do not overlap, then this is equivalent to `unsafeCopy`. Otherwise, the copying is performed as if the source vector were copied to a temporary vector and then the temporary vector was copied to the target vector.

# Internal operations

mstream :: forall (m :: Type -> Type) v a. (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a #

mstreamR :: forall (m :: Type -> Type) v a. (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a #

unstream :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => Bundle u a -> m (v (PrimState m) a) #

Create a new mutable vector and fill it with elements from the `Bundle`. The vector will grow exponentially if the maximum size of the `Bundle` is unknown.

unstreamR :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => Bundle u a -> m (v (PrimState m) a) #

Create a new mutable vector and fill it with elements from the `Bundle` from right to left. The vector will grow exponentially if the maximum size of the `Bundle` is unknown.

vunstream :: forall m (v :: Type -> Type) a. (PrimMonad m, Vector v a) => Bundle v a -> m (Mutable v (PrimState m) a) #

Create a new mutable vector and fill it with elements from the `Bundle`. The vector will grow exponentially if the maximum size of the `Bundle` is unknown.

munstream :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => MBundle m u a -> m (v (PrimState m) a) #

Create a new mutable vector and fill it with elements from the monadic stream. The vector will grow exponentially if the maximum size of the stream is unknown.

munstreamR :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => MBundle m u a -> m (v (PrimState m) a) #

Create a new mutable vector and fill it with elements from the monadic stream from right to left. The vector will grow exponentially if the maximum size of the stream is unknown.

transform :: (PrimMonad m, MVector v a) => (Stream m a -> Stream m a) -> v (PrimState m) a -> m (v (PrimState m) a) #

transformR :: (PrimMonad m, MVector v a) => (Stream m a -> Stream m a) -> v (PrimState m) a -> m (v (PrimState m) a) #

fill :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a -> m (v (PrimState m) a) #

fillR :: (PrimMonad m, MVector v a) => v (PrimState m) a -> Stream m a -> m (v (PrimState m) a) #

unsafeAccum :: forall m v a b (u :: Type -> Type). (PrimMonad m, MVector v a) => (a -> b -> a) -> v (PrimState m) a -> Bundle u (Int, b) -> m () #

accum :: forall m v a b (u :: Type -> Type). (HasCallStack, PrimMonad m, MVector v a) => (a -> b -> a) -> v (PrimState m) a -> Bundle u (Int, b) -> m () #

unsafeUpdate :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => v (PrimState m) a -> Bundle u (Int, a) -> m () #

update :: forall m v a (u :: Type -> Type). (HasCallStack, PrimMonad m, MVector v a) => v (PrimState m) a -> Bundle u (Int, a) -> m () #

reverse :: (PrimMonad m, MVector v a) => v (PrimState m) a -> m () #

unstablePartition :: (PrimMonad m, MVector v a) => (a -> Bool) -> v (PrimState m) a -> m Int #

unstablePartitionBundle :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => (a -> Bool) -> Bundle u a -> m (v (PrimState m) a, v (PrimState m) a) #

partitionBundle :: forall m v a (u :: Type -> Type). (PrimMonad m, MVector v a) => (a -> Bool) -> Bundle u a -> m (v (PrimState m) a, v (PrimState m) a) #

partitionWithBundle :: forall m v a b c (u :: Type -> Type). (PrimMonad m, MVector v a, MVector v b, MVector v c) => (a -> Either b c) -> Bundle u a -> m (v (PrimState m) b, v (PrimState m) c) #

# Re-exports

class Monad m => PrimMonad (m :: Type -> Type) #

Class of monads which can perform primitive state-transformer actions.

Minimal complete definition

primitive

#### Instances

Instances details

PrimMonad IO |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState IO |
Instance details Defined in Control.Monad.Primitive type PrimState IO = RealWorld
Methods primitive :: (State# (PrimState IO) -> (# State# (PrimState IO), a #)) -> IO a #
PrimMonad (ST s) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (ST s) |
Instance details Defined in Control.Monad.Primitive type PrimState (ST s) = s
Methods primitive :: (State# (PrimState (ST s)) -> (# State# (PrimState (ST s)), a #)) -> ST s a #
PrimMonad (ST s) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (ST s) |
Instance details Defined in Control.Monad.Primitive type PrimState (ST s) = s
Methods primitive :: (State# (PrimState (ST s)) -> (# State# (PrimState (ST s)), a #)) -> ST s a #
PrimMonad m => PrimMonad (MaybeT m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (MaybeT m) |
Instance details Defined in Control.Monad.Primitive type PrimState (MaybeT m) = PrimState m
Methods primitive :: (State# (PrimState (MaybeT m)) -> (# State# (PrimState (MaybeT m)), a #)) -> MaybeT m a #
(Monoid w, PrimMonad m) => PrimMonad (AccumT w m) | Since: primitive-0.6.3.0
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (AccumT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (AccumT w m) = PrimState m
Methods primitive :: (State# (PrimState (AccumT w m)) -> (# State# (PrimState (AccumT w m)), a #)) -> AccumT w m a #
PrimMonad m => PrimMonad (ExceptT e m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (ExceptT e m) |
Instance details Defined in Control.Monad.Primitive type PrimState (ExceptT e m) = PrimState m
Methods primitive :: (State# (PrimState (ExceptT e m)) -> (# State# (PrimState (ExceptT e m)), a #)) -> ExceptT e m a #
PrimMonad m => PrimMonad (IdentityT m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (IdentityT m) |
Instance details Defined in Control.Monad.Primitive type PrimState (IdentityT m) = PrimState m
Methods primitive :: (State# (PrimState (IdentityT m)) -> (# State# (PrimState (IdentityT m)), a #)) -> IdentityT m a #
PrimMonad m => PrimMonad (ReaderT r m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (ReaderT r m) |
Instance details Defined in Control.Monad.Primitive type PrimState (ReaderT r m) = PrimState m
Methods primitive :: (State# (PrimState (ReaderT r m)) -> (# State# (PrimState (ReaderT r m)), a #)) -> ReaderT r m a #
PrimMonad m => PrimMonad (SelectT r m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (SelectT r m) |
Instance details Defined in Control.Monad.Primitive type PrimState (SelectT r m) = PrimState m
Methods primitive :: (State# (PrimState (SelectT r m)) -> (# State# (PrimState (SelectT r m)), a #)) -> SelectT r m a #
PrimMonad m => PrimMonad (StateT s m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (StateT s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (StateT s m) = PrimState m
Methods primitive :: (State# (PrimState (StateT s m)) -> (# State# (PrimState (StateT s m)), a #)) -> StateT s m a #
PrimMonad m => PrimMonad (StateT s m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (StateT s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (StateT s m) = PrimState m
Methods primitive :: (State# (PrimState (StateT s m)) -> (# State# (PrimState (StateT s m)), a #)) -> StateT s m a #
(Monoid w, PrimMonad m) => PrimMonad (WriterT w m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (WriterT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (WriterT w m) = PrimState m
Methods primitive :: (State# (PrimState (WriterT w m)) -> (# State# (PrimState (WriterT w m)), a #)) -> WriterT w m a #
(Monoid w, PrimMonad m) => PrimMonad (WriterT w m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (WriterT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (WriterT w m) = PrimState m
Methods primitive :: (State# (PrimState (WriterT w m)) -> (# State# (PrimState (WriterT w m)), a #)) -> WriterT w m a #
(Monoid w, PrimMonad m) => PrimMonad (WriterT w m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (WriterT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (WriterT w m) = PrimState m
Methods primitive :: (State# (PrimState (WriterT w m)) -> (# State# (PrimState (WriterT w m)), a #)) -> WriterT w m a #
PrimMonad m => PrimMonad (ContT r m) | Since: primitive-0.6.3.0
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (ContT r m) |
Instance details Defined in Control.Monad.Primitive type PrimState (ContT r m) = PrimState m
Methods primitive :: (State# (PrimState (ContT r m)) -> (# State# (PrimState (ContT r m)), a #)) -> ContT r m a #
(Monoid w, PrimMonad m) => PrimMonad (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (RWST r w s m) = PrimState m
Methods primitive :: (State# (PrimState (RWST r w s m)) -> (# State# (PrimState (RWST r w s m)), a #)) -> RWST r w s m a #
(Monoid w, PrimMonad m) => PrimMonad (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (RWST r w s m) = PrimState m
Methods primitive :: (State# (PrimState (RWST r w s m)) -> (# State# (PrimState (RWST r w s m)), a #)) -> RWST r w s m a #
(Monoid w, PrimMonad m) => PrimMonad (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive Associated Types
type PrimState (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (RWST r w s m) = PrimState m
Methods primitive :: (State# (PrimState (RWST r w s m)) -> (# State# (PrimState (RWST r w s m)), a #)) -> RWST r w s m a #

type family PrimState (m :: Type -> Type) #

State token type.

#### Instances

Instances details

type PrimState IO |
Instance details Defined in Control.Monad.Primitive type PrimState IO = RealWorld
type PrimState (ST s) |
Instance details Defined in Control.Monad.Primitive type PrimState (ST s) = s
type PrimState (ST s) |
Instance details Defined in Control.Monad.Primitive type PrimState (ST s) = s
type PrimState (MaybeT m) |
Instance details Defined in Control.Monad.Primitive type PrimState (MaybeT m) = PrimState m
type PrimState (AccumT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (AccumT w m) = PrimState m
type PrimState (ExceptT e m) |
Instance details Defined in Control.Monad.Primitive type PrimState (ExceptT e m) = PrimState m
type PrimState (IdentityT m) |
Instance details Defined in Control.Monad.Primitive type PrimState (IdentityT m) = PrimState m
type PrimState (ReaderT r m) |
Instance details Defined in Control.Monad.Primitive type PrimState (ReaderT r m) = PrimState m
type PrimState (SelectT r m) |
Instance details Defined in Control.Monad.Primitive type PrimState (SelectT r m) = PrimState m
type PrimState (StateT s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (StateT s m) = PrimState m
type PrimState (StateT s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (StateT s m) = PrimState m
type PrimState (WriterT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (WriterT w m) = PrimState m
type PrimState (WriterT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (WriterT w m) = PrimState m
type PrimState (WriterT w m) |
Instance details Defined in Control.Monad.Primitive type PrimState (WriterT w m) = PrimState m
type PrimState (ContT r m) |
Instance details Defined in Control.Monad.Primitive type PrimState (ContT r m) = PrimState m
type PrimState (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (RWST r w s m) = PrimState m
type PrimState (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (RWST r w s m) = PrimState m
type PrimState (RWST r w s m) |
Instance details Defined in Control.Monad.Primitive type PrimState (RWST r w s m) = PrimState m

data RealWorld #

`RealWorld` is deeply magical. It is primitive, but it is not unlifted (hence `ptrArg`). We never manipulate values of type `RealWorld`; it's only used in the type system, to parameterise `State#`.