Modulesafe-0.3.21Haskell2010

Safe.Foldable

Foldable functions, with wrappers like the Safe module.

Contents

New functions
Safe wrappers
Discouraged
Deprecated

Synopsis

value findJust
value foldl1May
value foldl1Def
value foldl1Note
value foldr1May
value foldr1Def
value foldr1Note
value findJustDef
value findJustNote
value minimumMay
value minimumNote
value maximumMay
value maximumNote
value minimumByMay
value minimumByNote
value maximumByMay
value maximumByNote
value maximumBoundBy
value minimumBoundBy
value maximumBounded
value maximumBound
value minimumBounded
value minimumBound
value minimumDef
value maximumDef
value minimumByDef
value maximumByDef
value foldl1Safe
value foldr1Safe
value findJustSafe

Packagesafe-0.3.21
Exports30
LanguageHaskell2010
LicenceBSD-3-Clause
SourceFoldable.hs

New functions

valuefindJust :: (Partial, Foldable t) => (a -> Bool) -> t a -> a

Source#

findJust op = fromJust . find op

Safe wrappers

valuefoldl1May :: Foldable t => (a -> a -> a) -> t a -> Maybe a

valuefoldl1Def :: Foldable t => a -> (a -> a -> a) -> t a -> a

Source#

New users are recommended to use foldr1May or foldl1May instead.

valuefoldl1Note :: (Partial, Foldable t) => String -> (a -> a -> a) -> t a -> a

valuefoldr1May :: Foldable t => (a -> a -> a) -> t a -> Maybe a

valuefoldr1Def :: Foldable t => a -> (a -> a -> a) -> t a -> a

Source#

New users are recommended to use foldr1May or foldl1May instead.

valuefoldr1Note :: (Partial, Foldable t) => String -> (a -> a -> a) -> t a -> a

valuefindJustDef :: Foldable t => a -> (a -> Bool) -> t a -> a

valuefindJustNote :: (Partial, Foldable t) => String -> (a -> Bool) -> t a -> a

valueminimumMay :: (Foldable t, Ord a) => t a -> Maybe a

valueminimumNote :: (Partial, Foldable t, Ord a) => String -> t a -> a

valuemaximumMay :: (Foldable t, Ord a) => t a -> Maybe a

valuemaximumNote :: (Partial, Foldable t, Ord a) => String -> t a -> a

valueminimumByMay :: Foldable t => (a -> a -> Ordering) -> t a -> Maybe a

valueminimumByNote

:: (Partial, Foldable t)
=> String
-> a -> a -> Ordering
-> t a
-> a

valuemaximumByMay :: Foldable t => (a -> a -> Ordering) -> t a -> Maybe a

valuemaximumByNote

:: (Partial, Foldable t)
=> String
-> a -> a -> Ordering
-> t a
-> a

valuemaximumBoundBy :: Foldable f => a -> (a -> a -> Ordering) -> f a -> a

Source#

The largest element of a foldable structure with respect to the given comparison function. The result is bounded by the value given as the first argument.

valueminimumBoundBy :: Foldable f => a -> (a -> a -> Ordering) -> f a -> a

Source#

The smallest element of a foldable structure with respect to the given comparison function. The result is bounded by the value given as the first argument.