primitive

Primitive memory-related operations

BSD-3-Clause licensed by Roman Leshchinskiy

Maintained by libraries@haskell.org

This version can be pinned in stack with:primitive-0.6.3.0@sha256:97fe680ea7158dce999b54ea50865a10c5f907b4d416e6d88eb0f808f828cbdd,2056

Depends on 3 packages(full list with versions):

Used by 74 packages in lts-12.26(full list with versions):

This package provides various primitive memory-related operations.

Changes

Add PrimMonad instances for ContT, AccumT, and SelectT from transformers
Add Eq, Ord, Show, and IsList instances for ByteArray
Add Semigroup instances for Array and SmallArray. This allows primitive to build on GHC 8.4 and later.

Drop support for GHCs before 7.4
SmallArray support
ArrayArray# based support for more efficient arrays of unlifted pointer types
Make Array and the like instances of various classes for convenient use
Add Prim instances for Ptr and FunPtr
Add ioToPrim, stToPrim and unsafe counterparts for situations that would otherwise require type ascriptions on primToPrim
Add evalPrim
Add PrimBase instance for IdentityT

Use more appropriate types in internal memset functions, which prevents overflows/segfaults on 64-bit systems.
Fixed a warning on GHC 7.10
Worked around a -dcore-lint bug in GHC 7.6/7.7

Split PrimMonad into two classes to allow automatic lifting of primitive operations into monad transformers. The internal operation has moved to the PrimBase class.
Fixed the test suite on older GHCs

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

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

Add strict variants of MutVar modification functions atomicModifyMutVar' and modifyMutVar'
Fix compilation on Solaris 10 with GNU C 3.4.3

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