haskell/primitive

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This package provides various primitive memory-related operations.

Stars: 123
Forks: 60
Open beginner issues: 2
Indexed issues: 49

Dominant language: Haskell
License: No license data
Last GitHub push: Mar 4, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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test-qc: replace deprecated TypeInType for GHC 9.14 strict builds Open

Difficulty 1/5 1-3 hours Newbie friendliness 88/100

haskell/primitive#447 · 1 comment · Opened Sep 12, 2026
Drop support for GHCs older than 9.2? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

haskell/primitive#446 · 4 comments · 4 reactions · Opened Sep 7, 2026
bump bound QuickCheck to <9.17 Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

haskell/primitive#444 · Opened Aug 31, 2026
MicroHs support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#439 · Opened Dec 31, 2025
Use pointer equality for instances `Eq (Array a)` and `Eq (SmallArray a)`?! Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

haskell/primitive#432 · 1 comment · Opened Oct 23, 2025
Safe use of unsafeFreeze in arbitrary PrimMonad Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#431 · 3 reactions · Opened Sep 13, 2025
fromList for mutable arrays Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

haskell/primitive#413 · 7 comments · Opened May 1, 2024
Introduce Little-Endian, Big-Endian, and Byteswap Functions and Classes Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#412 · 1 reaction · Opened Mar 26, 2024
Drop Support for GHC < 8.6 in Preparation for PrimUnaligned Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

haskell/primitive#411 · 1 comment · 2 reactions · Opened Mar 26, 2024
Support unaligned GC array accesses in `Prim` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

haskell/primitive#409 · 8 comments · Opened Mar 11, 2024
Consider making distinct types for pinned and unpinned arrays Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#405 · 6 comments · 1 reaction · Opened Dec 23, 2023
Wrong type for with(Mutable)PrimArrayContents Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

haskell/primitive#404 · 3 comments · 2 reactions · Opened Dec 23, 2023
Wrapper for sameSmallMutableArray# Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

haskell/primitive#403 · 1 comment · Opened Nov 27, 2023
PrimUnlifted class Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#379 · 4 comments · Opened Mar 23, 2023
Support levity polymorphic interface Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

haskell/primitive#356 · 10 comments · 1 reaction · Opened Sep 15, 2022
missing git tags Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

haskell/primitive#349 · 3 comments · Opened Jul 10, 2022
Adapt to recent GHC changes in runRW# compilation Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

haskell/primitive#334 · 2 comments · Opened Jan 13, 2022
Ptr operations have the wrong types Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

haskell/primitive#333 · 4 comments · Opened Jan 12, 2022
Missing folds for `ByteArray` Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

haskell/primitive#328 · 1 comment · Opened Dec 23, 2021
Missing instances Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

haskell/primitive#327 · 1 comment · Opened Dec 23, 2021
mapAccumL and variants Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

haskell/primitive#304 · Opened Apr 9, 2021
IO operations for bytearray Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#299 · 6 comments · Opened Nov 24, 2020
Add atomic stuff Open

atomics enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#295 · 7 comments · Opened Sep 22, 2020
Use noDuplicate# where appropriate Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

haskell/primitive#294 · 2 comments · Opened Sep 22, 2020
memset is terrible and not performant likely (for nonzeroing path) Open

enhancement task

Difficulty 4/5 3-5 days Newbie friendliness 28/100

haskell/primitive#265 · 25 comments · Opened Mar 9, 2020
Fix unused imports warning Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

haskell/primitive#257 · 3 comments · Opened Feb 10, 2020
cmm / min ghc version / uniform APIS Open

enhancement task

Difficulty 5/5 Over a week Newbie friendliness 20/100

haskell/primitive#252 · 6 comments · Opened Jun 3, 2019
Add a default definition of primitive Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

haskell/primitive#228 · 1 comment · Opened Feb 6, 2019
Audit all uses of touch/touch# and introduce/recommend with#/with once its well supported by ghc Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#221 · Opened Dec 12, 2018
Add PrimMonad instance for CatchT Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#218 · 23 comments · Opened Dec 2, 2018
record labels for types other than Array Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

haskell/primitive#215 · 1 comment · Opened Nov 27, 2018
indexArrayM docs are misleading Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

haskell/primitive#213 · 8 comments · Opened Oct 17, 2018
Bounds checking in array functions Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

haskell/primitive#212 · 14 comments · Opened Oct 9, 2018
Add support for weak references with unlifted keys Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#210 · 3 comments · Opened Aug 30, 2018
Document why we can't derive Prim instances from Storable ones, and do what we can Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

haskell/primitive#207 · 1 comment · Opened Aug 20, 2018
Add UnliftedRef Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#198 · 6 comments · Opened Aug 15, 2018
Verbosity Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#188 · 3 comments · Opened Jul 21, 2018
write up policies for 'Prim' typeclass Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 35/100

haskell/primitive#180 · 3 comments · Opened Jul 3, 2018
Support list fusion to various toList operation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#173 · 1 comment · Opened May 31, 2018
in 0.7 add .Ptr and .MVar to the Data.Primitive re-exports :) Open

Difficulty 2/5 1-3 hours Newbie friendliness 30/100

haskell/primitive#170 · 11 comments · Opened May 30, 2018
add more functions that operate on MutablePrimArray Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

haskell/primitive#159 · Opened May 10, 2018
clarifying the unsafety of backtracking/nondeterminism of ListT/LogicT/ContT for PrimMonad Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 25/100

haskell/primitive#147 · Opened Apr 30, 2018
Missing atomic operators for `Data.Primitive.ByteArray` Open

atomics enhancement

Difficulty 3/5 1-2 days Newbie friendliness 38/100

haskell/primitive#122 · 7 comments · Opened Apr 2, 2018
Benchmark possible fromList implementations Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

haskell/primitive#120 · Opened Apr 1, 2018
Offer an extremely general function for building immutable arrays using mutation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#103 · Opened Mar 23, 2018
Consider array-doubling for fromList Open

performance

Difficulty 3/5 1-2 days Newbie friendliness 48/100

haskell/primitive#101 · 16 comments · Opened Mar 21, 2018
Add strict array operations and perhaps arrays Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

haskell/primitive#98 · 8 comments · Opened Mar 20, 2018
Unboxed array of Bool Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

haskell/primitive#42 · 12 comments · Opened Aug 30, 2016
Behavior of `Control.Monad.Primitive.touch` on boxed types Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

haskell/primitive#18 · 2 comments · Opened Dec 15, 2014

haskell/primitive

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