Vec: length-indexed (sized) list https://github.com/phadej/vec
|Latest on Hackage:||0|
This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
This package provides length indexed lists, i.e.
data Vec n a where VNil :: Vec 'Nat.Z a (:::) :: a -> Vec n a -> Vec ('Nat.S n) a
The functions are implemented in three flavours:
naive: with explicit recursion. It's simple, constraint-less, yet slow.
Fin n -> arepresentation, which fuses well, but makes some programs hard to write. And
inline: which exploits how GHC dictionary inlining works, unrolling recursion if the size of
Vecis known statically.
As best approach depends on the application,
vec doesn't do any magic
transformation. Benchmark your code.
Differences to other packages:
Vtype, which uses
vectorpackage as backing store.
Vecis a real GADT, but tries to provide as many useful instances (upto
sized-vector depends on
vecisn't light on dependencies either, but try to provide wide GHC support.
sized also depends on a
Sized f n atype is generalisation of
clash-prelude is a kitchen sink package, which has
CLaSH.Sized.Vectormodule. Also depends on
Revision history for boring
- First version. Released on an unsuspecting world.