GHC 7.4 gave us the ability to talk about ConstraintKinds. They stopped
crashing the compiler in GHC 7.6. This package provides a vocabulary for
working with them.
convertible provides a typeclass with a single function that is designed
to help convert between different types: numeric values, dates and times,
and the like. The conversions perform bounds checking and return a pure
Either value. This means that you need not remember which specific function
performs the conversion you desire. Also included in the package are
optional instances that provide conversion for various numeric and time
types, as well as utilities for writing your own instances. Finally, there
is a function that will raise an exception on bounds-checking violation,
or return a bare value otherwise, implemented in terms of the safer function
described above. Convertible is also used by HDBC 2.0 for handling
marshalling of data to and from databases. Convertible is backed by an
extensive test suite and passes tests on GHC and Hugs.
Cpphs is a re-implementation of the C pre-processor that is both more
compatible with Haskell, and itself written in Haskell so that it can be
distributed with compilers. This version of the C pre-processor is
pretty-much feature-complete and compatible with traditional (K&R)
pre-processors. Additional features include: a plain-text mode; an option
to unlit literate code files; and an option to turn off macro-expansion.
asmutils is a set of miscellaneous utilities written in assembly language,
targeted for x86 embedded systems and small distributions (like rescue or
installation disks); it also contains small libc and crypto libraries. It
features the smallest possible size and memory requirements, the fastest
speed (with few exceptions), and good functionality.
A class for types with a default value.
Default instances for types in base.
Default instances for types in containers.
Default instances for types in dlist.
Default instances for types in old-locale.
A class for types with a default value.