Safe Haskell	Safe-Inferred
Language	Haskell2010

Agda.Utils.Pointer

Synopsis

data Ptr a
newPtr :: a -> Ptr a
derefPtr :: Ptr a -> a
setPtr :: a -> Ptr a -> Ptr a
updatePtr :: (a -> a) -> Ptr a -> Ptr a
updatePtrM :: Functor f => (a -> f a) -> Ptr a -> f (Ptr a)

Documentation

data Ptr a Source #

Instances

Instances details

Foldable Ptr Source #
Instance details Defined in Agda.Utils.Pointer Methods fold :: Monoid m => Ptr m -> m foldMap :: Monoid m => (a -> m) -> Ptr a -> m foldMap' :: Monoid m => (a -> m) -> Ptr a -> m foldr :: (a -> b -> b) -> b -> Ptr a -> b foldr' :: (a -> b -> b) -> b -> Ptr a -> b foldl :: (b -> a -> b) -> b -> Ptr a -> b foldl' :: (b -> a -> b) -> b -> Ptr a -> b foldr1 :: (a -> a -> a) -> Ptr a -> a foldl1 :: (a -> a -> a) -> Ptr a -> a toList :: Ptr a -> [a] null :: Ptr a -> Bool length :: Ptr a -> Int elem :: Eq a => a -> Ptr a -> Bool maximum :: Ord a => Ptr a -> a minimum :: Ord a => Ptr a -> a sum :: Num a => Ptr a -> a product :: Num a => Ptr a -> a
Traversable Ptr Source #
Instance details Defined in Agda.Utils.Pointer Methods traverse :: Applicative f => (a -> f b) -> Ptr a -> f (Ptr b) sequenceA :: Applicative f => Ptr (f a) -> f (Ptr a) mapM :: Monad m => (a -> m b) -> Ptr a -> m (Ptr b) sequence :: Monad m => Ptr (m a) -> m (Ptr a)
Functor Ptr Source #
Instance details Defined in Agda.Utils.Pointer Methods fmap :: (a -> b) -> Ptr a -> Ptr b (<$) :: a -> Ptr b -> Ptr a #
Show a => Show (Ptr a) Source #
Instance details Defined in Agda.Utils.Pointer Methods showsPrec :: Int -> Ptr a -> ShowS show :: Ptr a -> String showList :: [Ptr a] -> ShowS
NFData (Ptr a) Source #
Instance details Defined in Agda.Utils.Pointer Methods rnf :: Ptr a -> ()
Eq (Ptr a) Source #
Instance details Defined in Agda.Utils.Pointer Methods (==) :: Ptr a -> Ptr a -> Bool (/=) :: Ptr a -> Ptr a -> Bool
Ord (Ptr a) Source #
Instance details Defined in Agda.Utils.Pointer Methods compare :: Ptr a -> Ptr a -> Ordering (<) :: Ptr a -> Ptr a -> Bool (<=) :: Ptr a -> Ptr a -> Bool (>) :: Ptr a -> Ptr a -> Bool (>=) :: Ptr a -> Ptr a -> Bool max :: Ptr a -> Ptr a -> Ptr a min :: Ptr a -> Ptr a -> Ptr a
Hashable (Ptr a) Source #
Instance details Defined in Agda.Utils.Pointer Methods hashWithSalt :: Int -> Ptr a -> Int hash :: Ptr a -> Int

newPtr :: a -> Ptr a Source #

derefPtr :: Ptr a -> a Source #

setPtr :: a -> Ptr a -> Ptr a Source #

updatePtr :: (a -> a) -> Ptr a -> Ptr a Source #

updatePtrM :: Functor f => (a -> f a) -> Ptr a -> f (Ptr a) Source #

If f a contains many copies of a they will all be the same pointer in the result. If the function is well-behaved (i.e. preserves the implicit equivalence, this shouldn't matter).