data-default-0.7.1.1: A class for types with a default value
Safe HaskellSafe-Inferred
LanguageHaskell98

Data.Default

Synopsis

Documentation

This module defines a class for types with a default value. Instances are provided for (), Set, Map, Int, Integer, Float, Double, and many others (see below).

class Default a where #

A class for types with a default value.

Minimal complete definition

Nothing

Methods

def :: a #

The default value for this type.

default def :: (Generic a, GDefault (Rep a)) => a #

Instances

Instances details
Default All 
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Defined in Data.Default.Class

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def :: All #

Default Any 
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def :: Any #

Default CClock 
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Defined in Data.Default.Class

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def :: CClock #

Default CDouble 
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def :: CDouble #

Default CFloat 
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def :: CFloat #

Default CInt 
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def :: CInt #

Default CIntMax 
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def :: CIntMax #

Default CIntPtr 
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def :: CIntPtr #

Default CLLong 
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def :: CLLong #

Default CLong 
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def :: CLong #

Default CPtrdiff 
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def :: CPtrdiff #

Default CSUSeconds 
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def :: CSUSeconds #

Default CShort 
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def :: CShort #

Default CSigAtomic 
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def :: CSigAtomic #

Default CSize 
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def :: CSize #

Default CTime 
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Defined in Data.Default.Class

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def :: CTime #

Default CUInt 
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Defined in Data.Default.Class

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def :: CUInt #

Default CUIntMax 
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def :: CUIntMax #

Default CUIntPtr 
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def :: CUIntPtr #

Default CULLong 
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def :: CULLong #

Default CULong 
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def :: CULong #

Default CUSeconds 
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def :: CUSeconds #

Default CUShort 
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def :: CUShort #

Default Int16 
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def :: Int16 #

Default Int32 
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def :: Int32 #

Default Int64 
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def :: Int64 #

Default Int8 
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def :: Int8 #

Default Word16 
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def :: Word16 #

Default Word32 
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def :: Word32 #

Default Word64 
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def :: Word64 #

Default Word8 
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def :: Word8 #

Default Ordering 
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def :: Ordering #

Default Integer 
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def :: Integer #

Default () 
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def :: () #

Default Double 
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def :: Double #

Default Float 
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def :: Float #

Default Int 
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def :: Int #

Default Word 
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def :: Word #

(Default a, RealFloat a) => Default (Complex a) 
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def :: Complex a #

Default (First a) 
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def :: First a #

Default (Last a) 
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def :: Last a #

Default a => Default (Dual a) 
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def :: Dual a #

Default (Endo a) 
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def :: Endo a #

Num a => Default (Product a) 
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def :: Product a #

Num a => Default (Sum a) 
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def :: Sum a #

Integral a => Default (Ratio a) 
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def :: Ratio a #

Default a => Default (IO a) 
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def :: IO a #

Default (Maybe a) 
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def :: Maybe a #

Default [a] 
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def :: [a] #

(Default a, Default b) => Default (a, b) 
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def :: (a, b) #

Default r => Default (e -> r) 
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def :: e -> r #

(Default a, Default b, Default c) => Default (a, b, c) 
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def :: (a, b, c) #

(Default a, Default b, Default c, Default d) => Default (a, b, c, d) 
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Defined in Data.Default.Class

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def :: (a, b, c, d) #

(Default a, Default b, Default c, Default d, Default e) => Default (a, b, c, d, e) 
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Defined in Data.Default.Class

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def :: (a, b, c, d, e) #

(Default a, Default b, Default c, Default d, Default e, Default f) => Default (a, b, c, d, e, f) 
Instance details

Defined in Data.Default.Class

Methods

def :: (a, b, c, d, e, f) #

(Default a, Default b, Default c, Default d, Default e, Default f, Default g) => Default (a, b, c, d, e, f, g) 
Instance details

Defined in Data.Default.Class

Methods

def :: (a, b, c, d, e, f, g) #