Moduleutility-ht-0.0.17.2Haskell98

Data.Ix.Enum

Implementations of Ix methods in terms of Enum methods.

For a type T of class Enum you can easily define an Ix instance by copying the following code into your module:

import qualified Data.Ix.Enum as IxEnum

instance Ix T where
   range           = IxEnum.range
   index           = IxEnum.index
   inRange         = IxEnum.inRange
   rangeSize       = IxEnum.rangeSize
   unsafeIndex     = IxEnum.unsafeIndex
   unsafeRangeSize = IxEnum.unsafeRangeSize

6 values

Packageutility-ht-0.0.17.2
Exports6
LanguageHaskell98
LicenceBSD-3-Clause
SourceEnum.hs

valuerange :: Enum a => (a, a) -> [a]

Example2 expressions

>>> range ('x','z')"xyz">>> range (LT,GT)[LT,EQ,GT]

valueindex :: Enum a => (a, a) -> a -> Int

Example1 expression

>>> index ('a','z') 'e'4

valueunsafeIndex :: Enum a => (a, a) -> a -> Int

Example1 expression

>>> unsafeIndex ('a','z') 'e'4

valueinRange :: Enum a => (a, a) -> a -> Bool

Example2 expressions

>>> inRange ('a','z') 'e'True>>> inRange ('x','z') 'a'False

valuerangeSize :: Enum a => (a, a) -> Int

Example1 expression

>>> rangeSize ('x','z')3

valueunsafeRangeSize :: Enum a => (a, a) -> Int

Example1 expression

>>> unsafeRangeSize ('x','z')3