Safe Haskell	Safe-Inferred
Language	Haskell98

Data.Default.Class

Synopsis

class Default a where
- def :: a

Documentation

This module defines a class for types with a default value. It also defines Default instances for the types Int, Int8, Int16, Int32, Int64, Word, Word8, Word16, Word32, Word64, Integer, Float, Double, Ratio, Complex, CShort, CUShort, CInt, CUInt, CLong, CULong, CLLong, CULLong, CPtrdiff, CSize, CSigAtomic, CIntPtr, CUIntPtr, CIntMax, CUIntMax, CClock, CTime, CUSeconds, CSUSeconds, CFloat, CDouble, (->), IO, Maybe, (), '[]', Ordering, Any, All, Last, First, Sum, Product, Endo, Dual, and tuples.

class Default a where Source #

A class for types with a default value.

Minimal complete definition

Nothing

Methods

def :: a Source #

The default value for this type.

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

Instances

Instances details

Default All Source #
Instance details Defined in Data.Default.Class Methods def :: All Source #
Default Any Source #
Instance details Defined in Data.Default.Class Methods def :: Any Source #
Default CClock Source #
Instance details Defined in Data.Default.Class Methods def :: CClock Source #
Default CDouble Source #
Instance details Defined in Data.Default.Class Methods def :: CDouble Source #
Default CFloat Source #
Instance details Defined in Data.Default.Class Methods def :: CFloat Source #
Default CInt Source #
Instance details Defined in Data.Default.Class Methods def :: CInt Source #
Default CIntMax Source #
Instance details Defined in Data.Default.Class Methods def :: CIntMax Source #
Default CIntPtr Source #
Instance details Defined in Data.Default.Class Methods def :: CIntPtr Source #
Default CLLong Source #
Instance details Defined in Data.Default.Class Methods def :: CLLong Source #
Default CLong Source #
Instance details Defined in Data.Default.Class Methods def :: CLong Source #
Default CPtrdiff Source #
Instance details Defined in Data.Default.Class Methods def :: CPtrdiff Source #
Default CSUSeconds Source #
Instance details Defined in Data.Default.Class Methods def :: CSUSeconds Source #
Default CShort Source #
Instance details Defined in Data.Default.Class Methods def :: CShort Source #
Default CSigAtomic Source #
Instance details Defined in Data.Default.Class Methods def :: CSigAtomic Source #
Default CSize Source #
Instance details Defined in Data.Default.Class Methods def :: CSize Source #
Default CTime Source #
Instance details Defined in Data.Default.Class Methods def :: CTime Source #
Default CUInt Source #
Instance details Defined in Data.Default.Class Methods def :: CUInt Source #
Default CUIntMax Source #
Instance details Defined in Data.Default.Class Methods def :: CUIntMax Source #
Default CUIntPtr Source #
Instance details Defined in Data.Default.Class Methods def :: CUIntPtr Source #
Default CULLong Source #
Instance details Defined in Data.Default.Class Methods def :: CULLong Source #
Default CULong Source #
Instance details Defined in Data.Default.Class Methods def :: CULong Source #
Default CUSeconds Source #
Instance details Defined in Data.Default.Class Methods def :: CUSeconds Source #
Default CUShort Source #
Instance details Defined in Data.Default.Class Methods def :: CUShort Source #
Default Int16 Source #
Instance details Defined in Data.Default.Class Methods def :: Int16 Source #
Default Int32 Source #
Instance details Defined in Data.Default.Class Methods def :: Int32 Source #
Default Int64 Source #
Instance details Defined in Data.Default.Class Methods def :: Int64 Source #
Default Int8 Source #
Instance details Defined in Data.Default.Class Methods def :: Int8 Source #
Default Word16 Source #
Instance details Defined in Data.Default.Class Methods def :: Word16 Source #
Default Word32 Source #
Instance details Defined in Data.Default.Class Methods def :: Word32 Source #
Default Word64 Source #
Instance details Defined in Data.Default.Class Methods def :: Word64 Source #
Default Word8 Source #
Instance details Defined in Data.Default.Class Methods def :: Word8 Source #
Default Ordering Source #
Instance details Defined in Data.Default.Class Methods def :: Ordering Source #
Default Integer Source #
Instance details Defined in Data.Default.Class Methods def :: Integer Source #
Default () Source #
Instance details Defined in Data.Default.Class Methods def :: () Source #
Default Double Source #
Instance details Defined in Data.Default.Class Methods def :: Double Source #
Default Float Source #
Instance details Defined in Data.Default.Class Methods def :: Float Source #
Default Int Source #
Instance details Defined in Data.Default.Class Methods def :: Int Source #
Default Word Source #
Instance details Defined in Data.Default.Class Methods def :: Word Source #
(Default a, RealFloat a) => Default (Complex a) Source #
Instance details Defined in Data.Default.Class Methods def :: Complex a Source #
Default (First a) Source #
Instance details Defined in Data.Default.Class Methods def :: First a Source #
Default (Last a) Source #
Instance details Defined in Data.Default.Class Methods def :: Last a Source #
Default a => Default (Dual a) Source #
Instance details Defined in Data.Default.Class Methods def :: Dual a Source #
Default (Endo a) Source #
Instance details Defined in Data.Default.Class Methods def :: Endo a Source #
Num a => Default (Product a) Source #
Instance details Defined in Data.Default.Class Methods def :: Product a Source #
Num a => Default (Sum a) Source #
Instance details Defined in Data.Default.Class Methods def :: Sum a Source #
Integral a => Default (Ratio a) Source #
Instance details Defined in Data.Default.Class Methods def :: Ratio a Source #
Default a => Default (IO a) Source #
Instance details Defined in Data.Default.Class Methods def :: IO a Source #
Default (Maybe a) Source #
Instance details Defined in Data.Default.Class Methods def :: Maybe a Source #
Default [a] Source #
Instance details Defined in Data.Default.Class Methods def :: [a] Source #
Default r => Default (e -> r) Source #
Instance details Defined in Data.Default.Class Methods def :: e -> r Source #
(Default a, Default b) => Default (a, b) Source #
Instance details Defined in Data.Default.Class Methods def :: (a, b) Source #
(Default a, Default b, Default c) => Default (a, b, c) Source #
Instance details Defined in Data.Default.Class Methods def :: (a, b, c) Source #
(Default a, Default b, Default c, Default d) => Default (a, b, c, d) Source #
Instance details Defined in Data.Default.Class Methods def :: (a, b, c, d) Source #
(Default a, Default b, Default c, Default d, Default e) => Default (a, b, c, d, e) Source #
Instance details Defined in Data.Default.Class Methods def :: (a, b, c, d, e) Source #
(Default a, Default b, Default c, Default d, Default e, Default f) => Default (a, b, c, d, e, f) Source #
Instance details Defined in Data.Default.Class Methods def :: (a, b, c, d, e, f) Source #
(Default a, Default b, Default c, Default d, Default e, Default f, Default g) => Default (a, b, c, d, e, f, g) Source #
Instance details Defined in Data.Default.Class Methods def :: (a, b, c, d, e, f, g) Source #