primitive

Primitive memory-related operations

https://github.com/haskell/primitive

Version on this page:0.5.4.0@rev:1
LTS Haskell 23.19:0.9.1.0
Stackage Nightly 2025-04-30:0.9.1.0
Latest on Hackage:0.9.1.0

See all snapshots primitive appears in

BSD-3-Clause licensed by Roman Leshchinskiy
Maintained by [email protected]
This version can be pinned in stack with:primitive-0.5.4.0@sha256:df0a129c168c61a06a02123898de081b1d0b254cce6d7ab24b8f43ec37baef9e,1876

Module documentation for 0.5.4.0

  • Control
    • Control.Monad
      • Control.Monad.Primitive
  • Data
    • Data.Primitive
      • Data.Primitive.Addr
      • Data.Primitive.Array
      • Data.Primitive.ByteArray
      • Data.Primitive.MachDeps
      • Data.Primitive.MutVar
      • Data.Primitive.Types
Depends on 2 packages(full list with versions):
base, ghc-prim

This package provides various primitive memory-related operations.

Changes

Changes in version 0.5.4.0

  • Changed primitive_ to work around an oddity with GHC’s code generation on certain versions that led to side effects not happening when used in conjunction with certain very unsafe IO performers.

  • Allow primitive to build on GHC 7.9

Changes in version 0.5.3.0

  • Implement cloneArray and cloneMutableArray primitives (with fall-back implementations for GHCs prior to version 7.2.1)

Changes in version 0.5.2.1

  • Add strict variants of MutVar modification functions atomicModifyMutVar' and modifyMutVar'

  • Fix compilation on Solaris 10 with GNU C 3.4.3

Changes in version 0.5.1.0

  • Add support for GHC 7.7’s new primitive Bool representation

Changes in version 0.5.0.1

  • Disable array copying primitives for GHC 7.6.* and earlier

Changes in version 0.5

  • New in Data.Primitive.MutVar: atomicModifyMutVar

  • Efficient block fill operations: setByteArray, setAddr

Changes in version 0.4.1

  • New module Data.Primitive.MutVar

Changes in version 0.4.0.1

  • Critical bug fix in fillByteArray

Changes in version 0.4

  • Support for GHC 7.2 array copying primitives

  • New in Data.Primitive.ByteArray: copyByteArray, copyMutableByteArray, moveByteArray, fillByteArray

  • Deprecated in Data.Primitive.ByteArray: memcpyByteArray, memcpyByteArray', memmoveByteArray, memsetByteArray

  • New in Data.Primitive.Array: copyArray, copyMutableByteArray

  • New in Data.Primitive.Addr: copyAddr, moveAddr

  • Deprecated in Data.Primitive.Addr: memcpyAddr