Summary: Generic function that enumerates the values of a datatype.
enum generates a list of the values of a datatypes. It will produce all
values of all supported datatypes (with only a few exceptions ). For
datatypes that have an infinite enumeration (e.g. Integer and [a]),
enum produces an infinite list.
A number of the techniques used to write enum came from a talk by Mark
Jones at the 2008 Advanced Functional Programming Summer School. The authors
gratefully acknowledge his contribution.
- The exceptions are Float and Double. These are treated in the same way
as their Enum instances are treated. The result looks like this:
[0.0,-1.0,1.0,-2.0,..], thus skipping all non-integral values. Note that
these may overflow, because they are unbounded.
|Type for enum
|Enumerate the values of a datatype. If the number of values is infinite,
the result will be an infinite list. The remaining functions are derived from
|Enumerate the first n values of a datatype. This is a shortcut for
genericTake n (enum).
|Returns the first element of the enumeration from enum. This is
often called the neutral or empty value.
|Produced by Haddock version 2.4.2|