vector-0.12.0.3: Efficient Arrays

Copyright(c) Roman Leshchinskiy 2008-2010
LicenseBSD-style
MaintainerRoman Leshchinskiy <rl@cse.unsw.edu.au>
Stabilityexperimental
Portabilitynon-portable
Safe HaskellNone
LanguageHaskell2010

Data.Vector.Primitive.Mutable

Contents

Description

Mutable primitive vectors.

Synopsis

Mutable vectors of primitive types

data MVector s a Source #

Mutable vectors of primitive types.

Constructors

MVector !Int !Int !(MutableByteArray s)

offset, length, underlying mutable byte array

Instances
Prim a => MVector MVector a Source # 
Instance details

Defined in Data.Vector.Primitive.Mutable

NFData (MVector s a) Source # 
Instance details

Defined in Data.Vector.Primitive.Mutable

Methods

rnf :: MVector s a -> () #

class Prim a #

Class of types supporting primitive array operations

Instances
Prim Char 
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Defined in Data.Primitive.Types

Prim Double 
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Defined in Data.Primitive.Types

Prim Float 
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Defined in Data.Primitive.Types

Prim Int 
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Defined in Data.Primitive.Types

Prim Int8 
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Defined in Data.Primitive.Types

Prim Int16 
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Defined in Data.Primitive.Types

Prim Int32 
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Prim Int64 
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Defined in Data.Primitive.Types

Prim Word 
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Defined in Data.Primitive.Types

Prim Word8 
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Prim Word16 
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Prim Word32 
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Prim Word64 
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Prim CDev 
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Prim CIno 
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Defined in Data.Primitive.Types

Prim CMode 
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Defined in Data.Primitive.Types

Prim COff 
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Prim CPid 
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Prim CSsize 
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Prim CGid 
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Prim CNlink 
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Prim CUid 
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Defined in Data.Primitive.Types

Prim CCc 
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Prim CSpeed 
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Prim CTcflag 
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Defined in Data.Primitive.Types

Prim CRLim 
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Defined in Data.Primitive.Types

Prim CBlkSize 
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Prim CBlkCnt 
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Prim CClockId 
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Prim CFsBlkCnt 
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Prim CFsFilCnt 
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Prim CId 
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Defined in Data.Primitive.Types

Prim CKey 
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Prim CTimer 
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Prim Fd 
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Prim CChar 
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Prim CSChar 
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Prim CUChar 
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Prim CShort 
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Prim CUShort 
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Prim CInt 
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Prim CUInt 
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Prim CLong 
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Prim CULong 
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Prim CLLong 
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Prim CULLong 
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Defined in Data.Primitive.Types

Prim CBool 
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Prim CFloat 
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Prim CDouble 
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Prim CPtrdiff 
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Prim CSize 
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Prim CWchar 
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Prim CSigAtomic 
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Prim CClock 
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Prim CTime 
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Prim CUSeconds 
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Prim CSUSeconds 
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Prim CIntPtr 
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Prim CUIntPtr 
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Prim CIntMax 
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Prim CUIntMax 
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Defined in Data.Primitive.Types

Prim Addr 
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Defined in Data.Primitive.Types

Prim (Ptr a) 
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Defined in Data.Primitive.Types

Prim (FunPtr a) 
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Defined in Data.Primitive.Types

Accessors

Length information

length :: Prim a => MVector s a -> Int Source #

Length of the mutable vector.

null :: Prim a => MVector s a -> Bool Source #

Check whether the vector is empty

Extracting subvectors

slice :: Prim a => Int -> Int -> MVector s a -> MVector s a Source #

Yield a part of the mutable vector without copying it.

init :: Prim a => MVector s a -> MVector s a Source #

tail :: Prim a => MVector s a -> MVector s a Source #

take :: Prim a => Int -> MVector s a -> MVector s a Source #

drop :: Prim a => Int -> MVector s a -> MVector s a Source #

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

unsafeSlice Source #

Arguments

:: Prim a 
=> Int

starting index

-> Int

length of the slice

-> MVector s a 
-> MVector s a 

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

unsafeInit :: Prim a => MVector s a -> MVector s a Source #

unsafeTail :: Prim a => MVector s a -> MVector s a Source #

unsafeTake :: Prim a => Int -> MVector s a -> MVector s a Source #

unsafeDrop :: Prim a => Int -> MVector s a -> MVector s a Source #

Overlapping

overlaps :: Prim a => MVector s a -> MVector s a -> Bool Source #

Check whether two vectors overlap.

Construction

Initialisation

new :: (PrimMonad m, Prim a) => Int -> m (MVector (PrimState m) a) Source #

Create a mutable vector of the given length.

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

Create a mutable vector of the given length. The memory is not initialized.

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

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

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

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.

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

Create a copy of a mutable vector.

Growing

grow :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> Int -> m (MVector (PrimState m) a) Source #

Grow a vector by the given number of elements. The number must be positive.

unsafeGrow :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> Int -> m (MVector (PrimState m) a) Source #

Grow a vector by the given number of elements. The number must be positive but this is not checked.

Restricting memory usage

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

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 :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> Int -> m a Source #

Yield the element at the given position.

write :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> Int -> a -> m () Source #

Replace the element at the given position.

modify :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> (a -> a) -> Int -> m () Source #

Modify the element at the given position.

swap :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> Int -> Int -> m () Source #

Swap the elements at the given positions.

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

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

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

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

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

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

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

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

Modifying vectors

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

Compute the next (lexicographically) permutation of given vector in-place. Returns False when input is the last permtuation

Filling and copying

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

Set all elements of the vector to the given value.

copy Source #

Arguments

:: (PrimMonad m, Prim a) 
=> MVector (PrimState m) a

target

-> MVector (PrimState m) a

source

-> m () 

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

move :: (PrimMonad m, Prim a) => MVector (PrimState m) a -> MVector (PrimState m) a -> m () Source #

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 Source #

Arguments

:: (PrimMonad m, Prim a) 
=> MVector (PrimState m) a

target

-> MVector (PrimState m) a

source

-> m () 

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

unsafeMove Source #

Arguments

:: (PrimMonad m, Prim a) 
=> MVector (PrimState m) a

target

-> MVector (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.