@hackage generic-enum0.1.1.0

The default Enum class has a couple of issues that limit it's flexibility namely:

1) The "Enum" type must be always "Int", even when this loses information, such as in the case of "Integer" (due to overflow) and "Rational" (in the case of fractions).

2) "enumFromTo" etc like functions can only produce lists, instead of directly producing other list like data types. Aside from effeciency, using a list as an intermediary can lose information also.

The Enum class this package defines should be largely a drop in replacement for Prelude's Enum, with some minor exceptions detailed in the documentation.