phantom types
BSD-3-CLAUSE License
mtl friendly exceptions
Provides Data.Void, which is in base since ghc 7.8 or so
the EitherT monad transformer
Haskell 98 monad transformer adding a phantom type argument
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!)
Bit twiddling and bitwise serialization primitives
categories from category-extras
Provides access to GHC's dynamic pointer tag bits
Additional Instances for Data.Vector
half-precision floating-point
Hash consing for arbitrary Haskell data types
todo and unimplemented, robustly implemented
Tools for programming with ConstraintKinds in GHC
Higher-rank hashable