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relational-schemas Database.Custom.SQLServer Aggregation function SUM.
sum' :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat a -> Record ac (Maybe a)relational-schemas Database.Custom.SQLite3 Aggregation function SUM.
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relational-schemas Database.Custom.SQLite3 Aggregation function SUM.
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tuple-th TupleTH No documentation available.
msum :: (Foldable t, MonadPlus m) => t (m a) -> m abase Control.Monad The sum of a collection of actions using (<|>), generalizing concat. msum is just like asum, but specialised to MonadPlus.
Examples
Basic usage, using the MonadPlus instance for Maybe:>>> msum [Just "Hello", Nothing, Just "World"] Just "Hello"
asum :: (Foldable t, Alternative f) => t (f a) -> f abase Control.Applicative The sum of a collection of actions using (<|>), generalizing concat. asum is just like msum, but generalised to Alternative.
Examples
Basic usage:>>> asum [Just "Hello", Nothing, Just "World"] Just "Hello"
biasum :: (Bifoldable t, Alternative f) => t (f a) (f a) -> f abase Data.Bifoldable The sum of a collection of actions, generalizing biconcat.
Examples
Basic usage:>>> biasum (Nothing, Nothing) Nothing
>>> biasum (Nothing, Just 42) Just 42
>>> biasum (Just 18, Nothing) Just 18
>>> biasum (Just 18, Just 42) Just 18
bimsum :: (Bifoldable t, Alternative f) => t (f a) (f a) -> f abase Data.Bifoldable Alias for biasum.
bisum :: (Bifoldable t, Num a) => t a a -> abase Data.Bifoldable The bisum function computes the sum of the numbers of a structure.
Examples
Basic usage:>>> bisum (42, 17) 59
>>> bisum (Right 42) 42
>>> bisum (BiList [13, 29, 4] [18, 1, 7]) 72
>>> bisum (BiList [13, 29, 4] []) 46
>>> bisum (BiList [] []) 0
asum :: (Foldable t, Alternative f) => t (f a) -> f abase Data.Foldable The sum of a collection of actions using (<|>), generalizing concat. asum is just like msum, but generalised to Alternative.
Examples
Basic usage:>>> asum [Just "Hello", Nothing, Just "World"] Just "Hello"