Safe Haskell	Safe-Inferred
Language	Haskell2010

Data.Primitive.TArray.Classic

Description

This module is a drop-in replacement for Control.Concurrent.STM.TArray in the stm package. It has the same fundamental inefficiency of the classic TArray, but it's a little faster and more compact. Specifically, this implementation uses two fewer words of memory and one fewer indirection per element. We also add an MArray instance for working in IO that the stm version lacks. Finally, the Eq instance for the official TArray is currently a little broken thanks to a bug in the instance for Data.Array.Array (See GHC Gitlab issue #18700). We fix that bug here.

Documentation

data TArray i a #

Instances

Instances details

MArray TArray e STM #
Instance details Defined in Data.Primitive.TArray.Classic Methods getBounds :: Ix i => TArray i e -> STM (i, i) getNumElements :: Ix i => TArray i e -> STM Int newArray :: Ix i => (i, i) -> e -> STM (TArray i e) newArray_ :: Ix i => (i, i) -> STM (TArray i e) unsafeNewArray_ :: Ix i => (i, i) -> STM (TArray i e) unsafeRead :: Ix i => TArray i e -> Int -> STM e unsafeWrite :: Ix i => TArray i e -> Int -> e -> STM ()
MArray TArray e IO #	Writes are slow in `IO`.
Instance details Defined in Data.Primitive.TArray.Classic Methods getBounds :: Ix i => TArray i e -> IO (i, i) getNumElements :: Ix i => TArray i e -> IO Int newArray :: Ix i => (i, i) -> e -> IO (TArray i e) newArray_ :: Ix i => (i, i) -> IO (TArray i e) unsafeNewArray_ :: Ix i => (i, i) -> IO (TArray i e) unsafeRead :: Ix i => TArray i e -> Int -> IO e unsafeWrite :: Ix i => TArray i e -> Int -> e -> IO ()
Eq i => Eq (TArray i a) #
Instance details Defined in Data.Primitive.TArray.Classic Methods (==) :: TArray i a -> TArray i a -> Bool (/=) :: TArray i a -> TArray i a -> Bool