| Portability | portable |
|---|---|
| Stability | experimental |
| Maintainer | ross@soi.city.ac.uk |
| Safe Haskell | Safe-Inferred |
Data.Functor.Constant
Description
The constant functor.
- newtype Constant a b = Constant a
- getConstant :: Constant a b -> a
Documentation
Constant functor.
Constructors
| Constant a |
Instances
| Functor (Constant a) | |
| Monoid a => Applicative (Constant a) | |
| Foldable (Constant a) | |
| Traversable (Constant a) | |
| Show a => Show1 (Constant a) | |
| Read a => Read1 (Constant a) | |
| Ord a => Ord1 (Constant a) | |
| Eq a => Eq1 (Constant a) | |
| Eq a => Eq (Constant a b) | |
| Ord a => Ord (Constant a b) | |
| Read a => Read (Constant a b) | |
| Show a => Show (Constant a b) |
getConstant :: Constant a b -> aSource
Inverse of Constant.