phantom types
BSD-3-CLAUSE License
Values carrying an extra phantom type tag.
Haskell 98 monad transformer adding a phantom type argument
todo and unimplemented, robustly implemented
half-precision floating-point
mtl friendly exceptions
categories from category-extras
Provides Data.Void, which is in base since ghc 7.8 or so
pointed and copointed data
Category theory for Haskell with a lens flavor (you need GHC 7.8.3, not 7.8.2 to build this!)
Provides access to GHC's dynamic pointer tag bits
Bit twiddling and bitwise serialization primitives
the EitherT monad transformer
Hash consing for arbitrary Haskell data types
Higher-rank hashable
Tools for programming with ConstraintKinds in GHC
Additional Instances for Data.Vector