Data.Enum

Copyright	(c) The University of Glasgow 1992-2002
License	see libraries/base/LICENSE
Maintainer	ghc-devs@haskell.org
Stability	stable
Portability	non-portable (GHC extensions)
Safe Haskell	Safe
Language	Haskell2010

Description

The Enum class.

Since: base-4.20.0.0

class Enum a where Source

Class Enum defines operations on sequentially ordered types.

The enumFrom... methods are used in Haskell's translation of arithmetic sequences.

Instances of Enum may be derived for any enumeration type (types whose constructors have no fields). The nullary constructors are assumed to be numbered left-to-right by fromEnum from 0 through n-1. See Chapter 10 of the Haskell Report for more details.

For any type that is an instance of class Bounded as well as Enum, the following should hold:

The calls succ maxBound and pred minBound should result in a runtime error.
fromEnum and toEnum should give a runtime error if the result value is not representable in the result type. For example, toEnum 7 :: Bool is an error.
enumFrom and enumFromThen should be defined with an implicit bound, thus:

   enumFrom     x   = enumFromTo     x maxBound
   enumFromThen x y = enumFromThenTo x y bound
     where
       bound | fromEnum y >= fromEnum x = maxBound
             | otherwise                = minBound

Minimal complete definition

toEnum, fromEnum

Methods

succ :: a -> a Source

Successor of a value. For numeric types, succ adds 1.

pred :: a -> a Source

Predecessor of a value. For numeric types, pred subtracts 1.

toEnum :: Int -> a Source

Convert from an Int.

fromEnum :: a -> Int Source

Convert to an Int. It is implementation-dependent what fromEnum returns when applied to a value that is too large to fit in an Int.

enumFrom :: a -> [a] Source

Used in Haskell's translation of [n..] with [n..] = enumFrom n, a possible implementation being enumFrom n = n : enumFrom (succ n).

Examples

Expand

```
enumFrom 4 :: [Integer] = [4,5,6,7,...]
```

enumFrom 6 :: [Int] = [6,7,8,9,...,maxBound :: Int]

enumFromThen :: a -> a -> [a] Source

Used in Haskell's translation of [n,n'..] with [n,n'..] = enumFromThen n n', a possible implementation being enumFromThen n n' = n : n' : worker (f x) (f x n'), worker s v = v : worker s (s v), x = fromEnum n' - fromEnum n and

  f n y
    | n > 0 = f (n - 1) (succ y)
    | n < 0 = f (n + 1) (pred y)
    | otherwise = y

Examples

Expand

enumFromThen 4 6 :: [Integer] = [4,6,8,10...]

enumFromThen 6 2 :: [Int] = [6,2,-2,-6,...,minBound :: Int]

enumFromTo :: a -> a -> [a] Source

Used in Haskell's translation of [n..m] with [n..m] = enumFromTo n m, a possible implementation being

  enumFromTo n m
     | n <= m = n : enumFromTo (succ n) m
     | otherwise = []

Examples

Expand

```
enumFromTo 6 10 :: [Int] = [6,7,8,9,10]
```
```
enumFromTo 42 1 :: [Integer] = []
```

enumFromThenTo :: a -> a -> a -> [a] Source

Used in Haskell's translation of [n,n'..m] with [n,n'..m] = enumFromThenTo n n' m, a possible implementation being enumFromThenTo n n' m = worker (f x) (c x) n m, x = fromEnum n' - fromEnum n, c x = bool (>=) ((x 0)

  f n y
     | n > 0 = f (n - 1) (succ y)
     | n < 0 = f (n + 1) (pred y)
     | otherwise = y

and

  worker s c v m
     | c v m = v : worker s c (s v) m
     | otherwise = []

Examples

Expand

enumFromThenTo 4 2 -6 :: [Integer] = [4,2,0,-2,-4,-6]

```
enumFromThenTo 6 8 2 :: [Int] = []
```

Instances

Instances details

Enum IoManagerFlag Source
Instance details Defined in GHC.RTS.Flags Methods succ :: IoManagerFlag -> IoManagerFlag Source pred :: IoManagerFlag -> IoManagerFlag Source toEnum :: Int -> IoManagerFlag Source fromEnum :: IoManagerFlag -> Int Source enumFrom :: IoManagerFlag -> [IoManagerFlag] Source enumFromThen :: IoManagerFlag -> IoManagerFlag -> [IoManagerFlag] Source enumFromTo :: IoManagerFlag -> IoManagerFlag -> [IoManagerFlag] Source enumFromThenTo :: IoManagerFlag -> IoManagerFlag -> IoManagerFlag -> [IoManagerFlag] Source
Enum ByteOrder Source	Since: base-4.11.0.0
Instance details Defined in GHC.Internal.ByteOrder Methods succ :: ByteOrder -> ByteOrder Source pred :: ByteOrder -> ByteOrder Source toEnum :: Int -> ByteOrder Source fromEnum :: ByteOrder -> Int Source enumFrom :: ByteOrder -> [ByteOrder] Source enumFromThen :: ByteOrder -> ByteOrder -> [ByteOrder] Source enumFromTo :: ByteOrder -> ByteOrder -> [ByteOrder] Source enumFromThenTo :: ByteOrder -> ByteOrder -> ByteOrder -> [ByteOrder] Source
Enum ClosureType Source
Instance details Defined in GHC.Internal.ClosureTypes Methods succ :: ClosureType -> ClosureType Source pred :: ClosureType -> ClosureType Source toEnum :: Int -> ClosureType Source fromEnum :: ClosureType -> Int Source enumFrom :: ClosureType -> [ClosureType] Source enumFromThen :: ClosureType -> ClosureType -> [ClosureType] Source enumFromTo :: ClosureType -> ClosureType -> [ClosureType] Source enumFromThenTo :: ClosureType -> ClosureType -> ClosureType -> [ClosureType] Source
Enum CBool Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CBool -> CBool Source pred :: CBool -> CBool Source toEnum :: Int -> CBool Source fromEnum :: CBool -> Int Source enumFrom :: CBool -> [CBool] Source enumFromThen :: CBool -> CBool -> [CBool] Source enumFromTo :: CBool -> CBool -> [CBool] Source enumFromThenTo :: CBool -> CBool -> CBool -> [CBool] Source
Enum CChar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CChar -> CChar Source pred :: CChar -> CChar Source toEnum :: Int -> CChar Source fromEnum :: CChar -> Int Source enumFrom :: CChar -> [CChar] Source enumFromThen :: CChar -> CChar -> [CChar] Source enumFromTo :: CChar -> CChar -> [CChar] Source enumFromThenTo :: CChar -> CChar -> CChar -> [CChar] Source
Enum CClock Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CClock -> CClock Source pred :: CClock -> CClock Source toEnum :: Int -> CClock Source fromEnum :: CClock -> Int Source enumFrom :: CClock -> [CClock] Source enumFromThen :: CClock -> CClock -> [CClock] Source enumFromTo :: CClock -> CClock -> [CClock] Source enumFromThenTo :: CClock -> CClock -> CClock -> [CClock] Source
Enum CDouble Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CDouble -> CDouble Source pred :: CDouble -> CDouble Source toEnum :: Int -> CDouble Source fromEnum :: CDouble -> Int Source enumFrom :: CDouble -> [CDouble] Source enumFromThen :: CDouble -> CDouble -> [CDouble] Source enumFromTo :: CDouble -> CDouble -> [CDouble] Source enumFromThenTo :: CDouble -> CDouble -> CDouble -> [CDouble] Source
Enum CFloat Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CFloat -> CFloat Source pred :: CFloat -> CFloat Source toEnum :: Int -> CFloat Source fromEnum :: CFloat -> Int Source enumFrom :: CFloat -> [CFloat] Source enumFromThen :: CFloat -> CFloat -> [CFloat] Source enumFromTo :: CFloat -> CFloat -> [CFloat] Source enumFromThenTo :: CFloat -> CFloat -> CFloat -> [CFloat] Source
Enum CInt Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CInt -> CInt Source pred :: CInt -> CInt Source toEnum :: Int -> CInt Source fromEnum :: CInt -> Int Source enumFrom :: CInt -> [CInt] Source enumFromThen :: CInt -> CInt -> [CInt] Source enumFromTo :: CInt -> CInt -> [CInt] Source enumFromThenTo :: CInt -> CInt -> CInt -> [CInt] Source
Enum CIntMax Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CIntMax -> CIntMax Source pred :: CIntMax -> CIntMax Source toEnum :: Int -> CIntMax Source fromEnum :: CIntMax -> Int Source enumFrom :: CIntMax -> [CIntMax] Source enumFromThen :: CIntMax -> CIntMax -> [CIntMax] Source enumFromTo :: CIntMax -> CIntMax -> [CIntMax] Source enumFromThenTo :: CIntMax -> CIntMax -> CIntMax -> [CIntMax] Source
Enum CIntPtr Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CIntPtr -> CIntPtr Source pred :: CIntPtr -> CIntPtr Source toEnum :: Int -> CIntPtr Source fromEnum :: CIntPtr -> Int Source enumFrom :: CIntPtr -> [CIntPtr] Source enumFromThen :: CIntPtr -> CIntPtr -> [CIntPtr] Source enumFromTo :: CIntPtr -> CIntPtr -> [CIntPtr] Source enumFromThenTo :: CIntPtr -> CIntPtr -> CIntPtr -> [CIntPtr] Source
Enum CLLong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CLLong -> CLLong Source pred :: CLLong -> CLLong Source toEnum :: Int -> CLLong Source fromEnum :: CLLong -> Int Source enumFrom :: CLLong -> [CLLong] Source enumFromThen :: CLLong -> CLLong -> [CLLong] Source enumFromTo :: CLLong -> CLLong -> [CLLong] Source enumFromThenTo :: CLLong -> CLLong -> CLLong -> [CLLong] Source
Enum CLong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CLong -> CLong Source pred :: CLong -> CLong Source toEnum :: Int -> CLong Source fromEnum :: CLong -> Int Source enumFrom :: CLong -> [CLong] Source enumFromThen :: CLong -> CLong -> [CLong] Source enumFromTo :: CLong -> CLong -> [CLong] Source enumFromThenTo :: CLong -> CLong -> CLong -> [CLong] Source
Enum CPtrdiff Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CPtrdiff -> CPtrdiff Source pred :: CPtrdiff -> CPtrdiff Source toEnum :: Int -> CPtrdiff Source fromEnum :: CPtrdiff -> Int Source enumFrom :: CPtrdiff -> [CPtrdiff] Source enumFromThen :: CPtrdiff -> CPtrdiff -> [CPtrdiff] Source enumFromTo :: CPtrdiff -> CPtrdiff -> [CPtrdiff] Source enumFromThenTo :: CPtrdiff -> CPtrdiff -> CPtrdiff -> [CPtrdiff] Source
Enum CSChar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CSChar -> CSChar Source pred :: CSChar -> CSChar Source toEnum :: Int -> CSChar Source fromEnum :: CSChar -> Int Source enumFrom :: CSChar -> [CSChar] Source enumFromThen :: CSChar -> CSChar -> [CSChar] Source enumFromTo :: CSChar -> CSChar -> [CSChar] Source enumFromThenTo :: CSChar -> CSChar -> CSChar -> [CSChar] Source
Enum CSUSeconds Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CSUSeconds -> CSUSeconds Source pred :: CSUSeconds -> CSUSeconds Source toEnum :: Int -> CSUSeconds Source fromEnum :: CSUSeconds -> Int Source enumFrom :: CSUSeconds -> [CSUSeconds] Source enumFromThen :: CSUSeconds -> CSUSeconds -> [CSUSeconds] Source enumFromTo :: CSUSeconds -> CSUSeconds -> [CSUSeconds] Source enumFromThenTo :: CSUSeconds -> CSUSeconds -> CSUSeconds -> [CSUSeconds] Source
Enum CShort Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CShort -> CShort Source pred :: CShort -> CShort Source toEnum :: Int -> CShort Source fromEnum :: CShort -> Int Source enumFrom :: CShort -> [CShort] Source enumFromThen :: CShort -> CShort -> [CShort] Source enumFromTo :: CShort -> CShort -> [CShort] Source enumFromThenTo :: CShort -> CShort -> CShort -> [CShort] Source
Enum CSigAtomic Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CSigAtomic -> CSigAtomic Source pred :: CSigAtomic -> CSigAtomic Source toEnum :: Int -> CSigAtomic Source fromEnum :: CSigAtomic -> Int Source enumFrom :: CSigAtomic -> [CSigAtomic] Source enumFromThen :: CSigAtomic -> CSigAtomic -> [CSigAtomic] Source enumFromTo :: CSigAtomic -> CSigAtomic -> [CSigAtomic] Source enumFromThenTo :: CSigAtomic -> CSigAtomic -> CSigAtomic -> [CSigAtomic] Source
Enum CSize Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CSize -> CSize Source pred :: CSize -> CSize Source toEnum :: Int -> CSize Source fromEnum :: CSize -> Int Source enumFrom :: CSize -> [CSize] Source enumFromThen :: CSize -> CSize -> [CSize] Source enumFromTo :: CSize -> CSize -> [CSize] Source enumFromThenTo :: CSize -> CSize -> CSize -> [CSize] Source
Enum CTime Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CTime -> CTime Source pred :: CTime -> CTime Source toEnum :: Int -> CTime Source fromEnum :: CTime -> Int Source enumFrom :: CTime -> [CTime] Source enumFromThen :: CTime -> CTime -> [CTime] Source enumFromTo :: CTime -> CTime -> [CTime] Source enumFromThenTo :: CTime -> CTime -> CTime -> [CTime] Source
Enum CUChar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CUChar -> CUChar Source pred :: CUChar -> CUChar Source toEnum :: Int -> CUChar Source fromEnum :: CUChar -> Int Source enumFrom :: CUChar -> [CUChar] Source enumFromThen :: CUChar -> CUChar -> [CUChar] Source enumFromTo :: CUChar -> CUChar -> [CUChar] Source enumFromThenTo :: CUChar -> CUChar -> CUChar -> [CUChar] Source
Enum CUInt Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CUInt -> CUInt Source pred :: CUInt -> CUInt Source toEnum :: Int -> CUInt Source fromEnum :: CUInt -> Int Source enumFrom :: CUInt -> [CUInt] Source enumFromThen :: CUInt -> CUInt -> [CUInt] Source enumFromTo :: CUInt -> CUInt -> [CUInt] Source enumFromThenTo :: CUInt -> CUInt -> CUInt -> [CUInt] Source
Enum CUIntMax Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CUIntMax -> CUIntMax Source pred :: CUIntMax -> CUIntMax Source toEnum :: Int -> CUIntMax Source fromEnum :: CUIntMax -> Int Source enumFrom :: CUIntMax -> [CUIntMax] Source enumFromThen :: CUIntMax -> CUIntMax -> [CUIntMax] Source enumFromTo :: CUIntMax -> CUIntMax -> [CUIntMax] Source enumFromThenTo :: CUIntMax -> CUIntMax -> CUIntMax -> [CUIntMax] Source
Enum CUIntPtr Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CUIntPtr -> CUIntPtr Source pred :: CUIntPtr -> CUIntPtr Source toEnum :: Int -> CUIntPtr Source fromEnum :: CUIntPtr -> Int Source enumFrom :: CUIntPtr -> [CUIntPtr] Source enumFromThen :: CUIntPtr -> CUIntPtr -> [CUIntPtr] Source enumFromTo :: CUIntPtr -> CUIntPtr -> [CUIntPtr] Source enumFromThenTo :: CUIntPtr -> CUIntPtr -> CUIntPtr -> [CUIntPtr] Source
Enum CULLong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CULLong -> CULLong Source pred :: CULLong -> CULLong Source toEnum :: Int -> CULLong Source fromEnum :: CULLong -> Int Source enumFrom :: CULLong -> [CULLong] Source enumFromThen :: CULLong -> CULLong -> [CULLong] Source enumFromTo :: CULLong -> CULLong -> [CULLong] Source enumFromThenTo :: CULLong -> CULLong -> CULLong -> [CULLong] Source
Enum CULong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CULong -> CULong Source pred :: CULong -> CULong Source toEnum :: Int -> CULong Source fromEnum :: CULong -> Int Source enumFrom :: CULong -> [CULong] Source enumFromThen :: CULong -> CULong -> [CULong] Source enumFromTo :: CULong -> CULong -> [CULong] Source enumFromThenTo :: CULong -> CULong -> CULong -> [CULong] Source
Enum CUSeconds Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CUSeconds -> CUSeconds Source pred :: CUSeconds -> CUSeconds Source toEnum :: Int -> CUSeconds Source fromEnum :: CUSeconds -> Int Source enumFrom :: CUSeconds -> [CUSeconds] Source enumFromThen :: CUSeconds -> CUSeconds -> [CUSeconds] Source enumFromTo :: CUSeconds -> CUSeconds -> [CUSeconds] Source enumFromThenTo :: CUSeconds -> CUSeconds -> CUSeconds -> [CUSeconds] Source
Enum CUShort Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CUShort -> CUShort Source pred :: CUShort -> CUShort Source toEnum :: Int -> CUShort Source fromEnum :: CUShort -> Int Source enumFrom :: CUShort -> [CUShort] Source enumFromThen :: CUShort -> CUShort -> [CUShort] Source enumFromTo :: CUShort -> CUShort -> [CUShort] Source enumFromThenTo :: CUShort -> CUShort -> CUShort -> [CUShort] Source
Enum CWchar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods succ :: CWchar -> CWchar Source pred :: CWchar -> CWchar Source toEnum :: Int -> CWchar Source fromEnum :: CWchar -> Int Source enumFrom :: CWchar -> [CWchar] Source enumFromThen :: CWchar -> CWchar -> [CWchar] Source enumFromTo :: CWchar -> CWchar -> [CWchar] Source enumFromThenTo :: CWchar -> CWchar -> CWchar -> [CWchar] Source
Enum IntPtr Source
Instance details Defined in GHC.Internal.Foreign.Ptr Methods succ :: IntPtr -> IntPtr Source pred :: IntPtr -> IntPtr Source toEnum :: Int -> IntPtr Source fromEnum :: IntPtr -> Int Source enumFrom :: IntPtr -> [IntPtr] Source enumFromThen :: IntPtr -> IntPtr -> [IntPtr] Source enumFromTo :: IntPtr -> IntPtr -> [IntPtr] Source enumFromThenTo :: IntPtr -> IntPtr -> IntPtr -> [IntPtr] Source
Enum WordPtr Source
Instance details Defined in GHC.Internal.Foreign.Ptr Methods succ :: WordPtr -> WordPtr Source pred :: WordPtr -> WordPtr Source toEnum :: Int -> WordPtr Source fromEnum :: WordPtr -> Int Source enumFrom :: WordPtr -> [WordPtr] Source enumFromThen :: WordPtr -> WordPtr -> [WordPtr] Source enumFromTo :: WordPtr -> WordPtr -> [WordPtr] Source enumFromThenTo :: WordPtr -> WordPtr -> WordPtr -> [WordPtr] Source
Enum Associativity Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods succ :: Associativity -> Associativity Source pred :: Associativity -> Associativity Source toEnum :: Int -> Associativity Source fromEnum :: Associativity -> Int Source enumFrom :: Associativity -> [Associativity] Source enumFromThen :: Associativity -> Associativity -> [Associativity] Source enumFromTo :: Associativity -> Associativity -> [Associativity] Source enumFromThenTo :: Associativity -> Associativity -> Associativity -> [Associativity] Source
Enum DecidedStrictness Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods succ :: DecidedStrictness -> DecidedStrictness Source pred :: DecidedStrictness -> DecidedStrictness Source toEnum :: Int -> DecidedStrictness Source fromEnum :: DecidedStrictness -> Int Source enumFrom :: DecidedStrictness -> [DecidedStrictness] Source enumFromThen :: DecidedStrictness -> DecidedStrictness -> [DecidedStrictness] Source enumFromTo :: DecidedStrictness -> DecidedStrictness -> [DecidedStrictness] Source enumFromThenTo :: DecidedStrictness -> DecidedStrictness -> DecidedStrictness -> [DecidedStrictness] Source
Enum SourceStrictness Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods succ :: SourceStrictness -> SourceStrictness Source pred :: SourceStrictness -> SourceStrictness Source toEnum :: Int -> SourceStrictness Source fromEnum :: SourceStrictness -> Int Source enumFrom :: SourceStrictness -> [SourceStrictness] Source enumFromThen :: SourceStrictness -> SourceStrictness -> [SourceStrictness] Source enumFromTo :: SourceStrictness -> SourceStrictness -> [SourceStrictness] Source enumFromThenTo :: SourceStrictness -> SourceStrictness -> SourceStrictness -> [SourceStrictness] Source
Enum SourceUnpackedness Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods succ :: SourceUnpackedness -> SourceUnpackedness Source pred :: SourceUnpackedness -> SourceUnpackedness Source toEnum :: Int -> SourceUnpackedness Source fromEnum :: SourceUnpackedness -> Int Source enumFrom :: SourceUnpackedness -> [SourceUnpackedness] Source enumFromThen :: SourceUnpackedness -> SourceUnpackedness -> [SourceUnpackedness] Source enumFromTo :: SourceUnpackedness -> SourceUnpackedness -> [SourceUnpackedness] Source enumFromThenTo :: SourceUnpackedness -> SourceUnpackedness -> SourceUnpackedness -> [SourceUnpackedness] Source
Enum HalfWord Source
Instance details Defined in GHC.Internal.Heap.InfoTable.Types Methods succ :: HalfWord -> HalfWord Source pred :: HalfWord -> HalfWord Source toEnum :: Int -> HalfWord Source fromEnum :: HalfWord -> Int Source enumFrom :: HalfWord -> [HalfWord] Source enumFromThen :: HalfWord -> HalfWord -> [HalfWord] Source enumFromTo :: HalfWord -> HalfWord -> [HalfWord] Source enumFromThenTo :: HalfWord -> HalfWord -> HalfWord -> [HalfWord] Source
Enum SeekMode Source	Since: base-4.2.0.0
Instance details Defined in GHC.Internal.IO.Device Methods succ :: SeekMode -> SeekMode Source pred :: SeekMode -> SeekMode Source toEnum :: Int -> SeekMode Source fromEnum :: SeekMode -> Int Source enumFrom :: SeekMode -> [SeekMode] Source enumFromThen :: SeekMode -> SeekMode -> [SeekMode] Source enumFromTo :: SeekMode -> SeekMode -> [SeekMode] Source enumFromThenTo :: SeekMode -> SeekMode -> SeekMode -> [SeekMode] Source
Enum IOMode Source	Since: base-4.2.0.0
Instance details Defined in GHC.Internal.IO.IOMode Methods succ :: IOMode -> IOMode Source pred :: IOMode -> IOMode Source toEnum :: Int -> IOMode Source fromEnum :: IOMode -> Int Source enumFrom :: IOMode -> [IOMode] Source enumFromThen :: IOMode -> IOMode -> [IOMode] Source enumFromTo :: IOMode -> IOMode -> [IOMode] Source enumFromThenTo :: IOMode -> IOMode -> IOMode -> [IOMode] Source
Enum IoSubSystem Source
Instance details Defined in GHC.Internal.IO.SubSystem Methods succ :: IoSubSystem -> IoSubSystem Source pred :: IoSubSystem -> IoSubSystem Source toEnum :: Int -> IoSubSystem Source fromEnum :: IoSubSystem -> Int Source enumFrom :: IoSubSystem -> [IoSubSystem] Source enumFromThen :: IoSubSystem -> IoSubSystem -> [IoSubSystem] Source enumFromTo :: IoSubSystem -> IoSubSystem -> [IoSubSystem] Source enumFromThenTo :: IoSubSystem -> IoSubSystem -> IoSubSystem -> [IoSubSystem] Source
Enum Int16 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods succ :: Int16 -> Int16 Source pred :: Int16 -> Int16 Source toEnum :: Int -> Int16 Source fromEnum :: Int16 -> Int Source enumFrom :: Int16 -> [Int16] Source enumFromThen :: Int16 -> Int16 -> [Int16] Source enumFromTo :: Int16 -> Int16 -> [Int16] Source enumFromThenTo :: Int16 -> Int16 -> Int16 -> [Int16] Source
Enum Int32 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods succ :: Int32 -> Int32 Source pred :: Int32 -> Int32 Source toEnum :: Int -> Int32 Source fromEnum :: Int32 -> Int Source enumFrom :: Int32 -> [Int32] Source enumFromThen :: Int32 -> Int32 -> [Int32] Source enumFromTo :: Int32 -> Int32 -> [Int32] Source enumFromThenTo :: Int32 -> Int32 -> Int32 -> [Int32] Source
Enum Int64 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods succ :: Int64 -> Int64 Source pred :: Int64 -> Int64 Source toEnum :: Int -> Int64 Source fromEnum :: Int64 -> Int Source enumFrom :: Int64 -> [Int64] Source enumFromThen :: Int64 -> Int64 -> [Int64] Source enumFromTo :: Int64 -> Int64 -> [Int64] Source enumFromThenTo :: Int64 -> Int64 -> Int64 -> [Int64] Source
Enum Int8 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods succ :: Int8 -> Int8 Source pred :: Int8 -> Int8 Source toEnum :: Int -> Int8 Source fromEnum :: Int8 -> Int Source enumFrom :: Int8 -> [Int8] Source enumFromThen :: Int8 -> Int8 -> [Int8] Source enumFromTo :: Int8 -> Int8 -> [Int8] Source enumFromThenTo :: Int8 -> Int8 -> Int8 -> [Int8] Source
Enum Extension Source
Instance details Defined in GHC.Internal.LanguageExtensions Methods succ :: Extension -> Extension Source pred :: Extension -> Extension Source toEnum :: Int -> Extension Source fromEnum :: Extension -> Int Source enumFrom :: Extension -> [Extension] Source enumFromThen :: Extension -> Extension -> [Extension] Source enumFromTo :: Extension -> Extension -> [Extension] Source enumFromThenTo :: Extension -> Extension -> Extension -> [Extension] Source
Enum DoCostCentres Source	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.RTS.Flags Methods succ :: DoCostCentres -> DoCostCentres Source pred :: DoCostCentres -> DoCostCentres Source toEnum :: Int -> DoCostCentres Source fromEnum :: DoCostCentres -> Int Source enumFrom :: DoCostCentres -> [DoCostCentres] Source enumFromThen :: DoCostCentres -> DoCostCentres -> [DoCostCentres] Source enumFromTo :: DoCostCentres -> DoCostCentres -> [DoCostCentres] Source enumFromThenTo :: DoCostCentres -> DoCostCentres -> DoCostCentres -> [DoCostCentres] Source
Enum DoHeapProfile Source	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.RTS.Flags Methods succ :: DoHeapProfile -> DoHeapProfile Source pred :: DoHeapProfile -> DoHeapProfile Source toEnum :: Int -> DoHeapProfile Source fromEnum :: DoHeapProfile -> Int Source enumFrom :: DoHeapProfile -> [DoHeapProfile] Source enumFromThen :: DoHeapProfile -> DoHeapProfile -> [DoHeapProfile] Source enumFromTo :: DoHeapProfile -> DoHeapProfile -> [DoHeapProfile] Source enumFromThenTo :: DoHeapProfile -> DoHeapProfile -> DoHeapProfile -> [DoHeapProfile] Source
Enum DoTrace Source	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.RTS.Flags Methods succ :: DoTrace -> DoTrace Source pred :: DoTrace -> DoTrace Source toEnum :: Int -> DoTrace Source fromEnum :: DoTrace -> Int Source enumFrom :: DoTrace -> [DoTrace] Source enumFromThen :: DoTrace -> DoTrace -> [DoTrace] Source enumFromTo :: DoTrace -> DoTrace -> [DoTrace] Source enumFromThenTo :: DoTrace -> DoTrace -> DoTrace -> [DoTrace] Source
Enum GiveGCStats Source	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.RTS.Flags Methods succ :: GiveGCStats -> GiveGCStats Source pred :: GiveGCStats -> GiveGCStats Source toEnum :: Int -> GiveGCStats Source fromEnum :: GiveGCStats -> Int Source enumFrom :: GiveGCStats -> [GiveGCStats] Source enumFromThen :: GiveGCStats -> GiveGCStats -> [GiveGCStats] Source enumFromTo :: GiveGCStats -> GiveGCStats -> [GiveGCStats] Source enumFromThenTo :: GiveGCStats -> GiveGCStats -> GiveGCStats -> [GiveGCStats] Source
Enum IoManagerFlag Source
Instance details Defined in GHC.Internal.RTS.Flags Methods succ :: IoManagerFlag -> IoManagerFlag Source pred :: IoManagerFlag -> IoManagerFlag Source toEnum :: Int -> IoManagerFlag Source fromEnum :: IoManagerFlag -> Int Source enumFrom :: IoManagerFlag -> [IoManagerFlag] Source enumFromThen :: IoManagerFlag -> IoManagerFlag -> [IoManagerFlag] Source enumFromTo :: IoManagerFlag -> IoManagerFlag -> [IoManagerFlag] Source enumFromThenTo :: IoManagerFlag -> IoManagerFlag -> IoManagerFlag -> [IoManagerFlag] Source
Enum ByteOffset Source
Instance details Defined in GHC.Internal.Stack.Constants Methods succ :: ByteOffset -> ByteOffset Source pred :: ByteOffset -> ByteOffset Source toEnum :: Int -> ByteOffset Source fromEnum :: ByteOffset -> Int Source enumFrom :: ByteOffset -> [ByteOffset] Source enumFromThen :: ByteOffset -> ByteOffset -> [ByteOffset] Source enumFromTo :: ByteOffset -> ByteOffset -> [ByteOffset] Source enumFromThenTo :: ByteOffset -> ByteOffset -> ByteOffset -> [ByteOffset] Source
Enum WordOffset Source
Instance details Defined in GHC.Internal.Stack.Constants Methods succ :: WordOffset -> WordOffset Source pred :: WordOffset -> WordOffset Source toEnum :: Int -> WordOffset Source fromEnum :: WordOffset -> Int Source enumFrom :: WordOffset -> [WordOffset] Source enumFromThen :: WordOffset -> WordOffset -> [WordOffset] Source enumFromTo :: WordOffset -> WordOffset -> [WordOffset] Source enumFromThenTo :: WordOffset -> WordOffset -> WordOffset -> [WordOffset] Source
Enum ByteOffset Source
Instance details Defined in GHC.Internal.Stack.ConstantsProf Methods succ :: ByteOffset -> ByteOffset Source pred :: ByteOffset -> ByteOffset Source toEnum :: Int -> ByteOffset Source fromEnum :: ByteOffset -> Int Source enumFrom :: ByteOffset -> [ByteOffset] Source enumFromThen :: ByteOffset -> ByteOffset -> [ByteOffset] Source enumFromTo :: ByteOffset -> ByteOffset -> [ByteOffset] Source enumFromThenTo :: ByteOffset -> ByteOffset -> ByteOffset -> [ByteOffset] Source
Enum WordOffset Source
Instance details Defined in GHC.Internal.Stack.ConstantsProf Methods succ :: WordOffset -> WordOffset Source pred :: WordOffset -> WordOffset Source toEnum :: Int -> WordOffset Source fromEnum :: WordOffset -> Int Source enumFrom :: WordOffset -> [WordOffset] Source enumFromThen :: WordOffset -> WordOffset -> [WordOffset] Source enumFromTo :: WordOffset -> WordOffset -> [WordOffset] Source enumFromThenTo :: WordOffset -> WordOffset -> WordOffset -> [WordOffset] Source
Enum CBlkCnt Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CBlkCnt -> CBlkCnt Source pred :: CBlkCnt -> CBlkCnt Source toEnum :: Int -> CBlkCnt Source fromEnum :: CBlkCnt -> Int Source enumFrom :: CBlkCnt -> [CBlkCnt] Source enumFromThen :: CBlkCnt -> CBlkCnt -> [CBlkCnt] Source enumFromTo :: CBlkCnt -> CBlkCnt -> [CBlkCnt] Source enumFromThenTo :: CBlkCnt -> CBlkCnt -> CBlkCnt -> [CBlkCnt] Source
Enum CBlkSize Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CBlkSize -> CBlkSize Source pred :: CBlkSize -> CBlkSize Source toEnum :: Int -> CBlkSize Source fromEnum :: CBlkSize -> Int Source enumFrom :: CBlkSize -> [CBlkSize] Source enumFromThen :: CBlkSize -> CBlkSize -> [CBlkSize] Source enumFromTo :: CBlkSize -> CBlkSize -> [CBlkSize] Source enumFromThenTo :: CBlkSize -> CBlkSize -> CBlkSize -> [CBlkSize] Source
Enum CCc Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CCc -> CCc Source pred :: CCc -> CCc Source toEnum :: Int -> CCc Source fromEnum :: CCc -> Int Source enumFrom :: CCc -> [CCc] Source enumFromThen :: CCc -> CCc -> [CCc] Source enumFromTo :: CCc -> CCc -> [CCc] Source enumFromThenTo :: CCc -> CCc -> CCc -> [CCc] Source
Enum CClockId Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CClockId -> CClockId Source pred :: CClockId -> CClockId Source toEnum :: Int -> CClockId Source fromEnum :: CClockId -> Int Source enumFrom :: CClockId -> [CClockId] Source enumFromThen :: CClockId -> CClockId -> [CClockId] Source enumFromTo :: CClockId -> CClockId -> [CClockId] Source enumFromThenTo :: CClockId -> CClockId -> CClockId -> [CClockId] Source
Enum CDev Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CDev -> CDev Source pred :: CDev -> CDev Source toEnum :: Int -> CDev Source fromEnum :: CDev -> Int Source enumFrom :: CDev -> [CDev] Source enumFromThen :: CDev -> CDev -> [CDev] Source enumFromTo :: CDev -> CDev -> [CDev] Source enumFromThenTo :: CDev -> CDev -> CDev -> [CDev] Source
Enum CFsBlkCnt Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CFsBlkCnt -> CFsBlkCnt Source pred :: CFsBlkCnt -> CFsBlkCnt Source toEnum :: Int -> CFsBlkCnt Source fromEnum :: CFsBlkCnt -> Int Source enumFrom :: CFsBlkCnt -> [CFsBlkCnt] Source enumFromThen :: CFsBlkCnt -> CFsBlkCnt -> [CFsBlkCnt] Source enumFromTo :: CFsBlkCnt -> CFsBlkCnt -> [CFsBlkCnt] Source enumFromThenTo :: CFsBlkCnt -> CFsBlkCnt -> CFsBlkCnt -> [CFsBlkCnt] Source
Enum CFsFilCnt Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CFsFilCnt -> CFsFilCnt Source pred :: CFsFilCnt -> CFsFilCnt Source toEnum :: Int -> CFsFilCnt Source fromEnum :: CFsFilCnt -> Int Source enumFrom :: CFsFilCnt -> [CFsFilCnt] Source enumFromThen :: CFsFilCnt -> CFsFilCnt -> [CFsFilCnt] Source enumFromTo :: CFsFilCnt -> CFsFilCnt -> [CFsFilCnt] Source enumFromThenTo :: CFsFilCnt -> CFsFilCnt -> CFsFilCnt -> [CFsFilCnt] Source
Enum CGid Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CGid -> CGid Source pred :: CGid -> CGid Source toEnum :: Int -> CGid Source fromEnum :: CGid -> Int Source enumFrom :: CGid -> [CGid] Source enumFromThen :: CGid -> CGid -> [CGid] Source enumFromTo :: CGid -> CGid -> [CGid] Source enumFromThenTo :: CGid -> CGid -> CGid -> [CGid] Source
Enum CId Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CId -> CId Source pred :: CId -> CId Source toEnum :: Int -> CId Source fromEnum :: CId -> Int Source enumFrom :: CId -> [CId] Source enumFromThen :: CId -> CId -> [CId] Source enumFromTo :: CId -> CId -> [CId] Source enumFromThenTo :: CId -> CId -> CId -> [CId] Source
Enum CIno Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CIno -> CIno Source pred :: CIno -> CIno Source toEnum :: Int -> CIno Source fromEnum :: CIno -> Int Source enumFrom :: CIno -> [CIno] Source enumFromThen :: CIno -> CIno -> [CIno] Source enumFromTo :: CIno -> CIno -> [CIno] Source enumFromThenTo :: CIno -> CIno -> CIno -> [CIno] Source
Enum CKey Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CKey -> CKey Source pred :: CKey -> CKey Source toEnum :: Int -> CKey Source fromEnum :: CKey -> Int Source enumFrom :: CKey -> [CKey] Source enumFromThen :: CKey -> CKey -> [CKey] Source enumFromTo :: CKey -> CKey -> [CKey] Source enumFromThenTo :: CKey -> CKey -> CKey -> [CKey] Source
Enum CMode Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CMode -> CMode Source pred :: CMode -> CMode Source toEnum :: Int -> CMode Source fromEnum :: CMode -> Int Source enumFrom :: CMode -> [CMode] Source enumFromThen :: CMode -> CMode -> [CMode] Source enumFromTo :: CMode -> CMode -> [CMode] Source enumFromThenTo :: CMode -> CMode -> CMode -> [CMode] Source
Enum CNfds Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CNfds -> CNfds Source pred :: CNfds -> CNfds Source toEnum :: Int -> CNfds Source fromEnum :: CNfds -> Int Source enumFrom :: CNfds -> [CNfds] Source enumFromThen :: CNfds -> CNfds -> [CNfds] Source enumFromTo :: CNfds -> CNfds -> [CNfds] Source enumFromThenTo :: CNfds -> CNfds -> CNfds -> [CNfds] Source
Enum CNlink Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CNlink -> CNlink Source pred :: CNlink -> CNlink Source toEnum :: Int -> CNlink Source fromEnum :: CNlink -> Int Source enumFrom :: CNlink -> [CNlink] Source enumFromThen :: CNlink -> CNlink -> [CNlink] Source enumFromTo :: CNlink -> CNlink -> [CNlink] Source enumFromThenTo :: CNlink -> CNlink -> CNlink -> [CNlink] Source
Enum COff Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: COff -> COff Source pred :: COff -> COff Source toEnum :: Int -> COff Source fromEnum :: COff -> Int Source enumFrom :: COff -> [COff] Source enumFromThen :: COff -> COff -> [COff] Source enumFromTo :: COff -> COff -> [COff] Source enumFromThenTo :: COff -> COff -> COff -> [COff] Source
Enum CPid Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CPid -> CPid Source pred :: CPid -> CPid Source toEnum :: Int -> CPid Source fromEnum :: CPid -> Int Source enumFrom :: CPid -> [CPid] Source enumFromThen :: CPid -> CPid -> [CPid] Source enumFromTo :: CPid -> CPid -> [CPid] Source enumFromThenTo :: CPid -> CPid -> CPid -> [CPid] Source
Enum CRLim Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CRLim -> CRLim Source pred :: CRLim -> CRLim Source toEnum :: Int -> CRLim Source fromEnum :: CRLim -> Int Source enumFrom :: CRLim -> [CRLim] Source enumFromThen :: CRLim -> CRLim -> [CRLim] Source enumFromTo :: CRLim -> CRLim -> [CRLim] Source enumFromThenTo :: CRLim -> CRLim -> CRLim -> [CRLim] Source
Enum CSocklen Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CSocklen -> CSocklen Source pred :: CSocklen -> CSocklen Source toEnum :: Int -> CSocklen Source fromEnum :: CSocklen -> Int Source enumFrom :: CSocklen -> [CSocklen] Source enumFromThen :: CSocklen -> CSocklen -> [CSocklen] Source enumFromTo :: CSocklen -> CSocklen -> [CSocklen] Source enumFromThenTo :: CSocklen -> CSocklen -> CSocklen -> [CSocklen] Source
Enum CSpeed Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CSpeed -> CSpeed Source pred :: CSpeed -> CSpeed Source toEnum :: Int -> CSpeed Source fromEnum :: CSpeed -> Int Source enumFrom :: CSpeed -> [CSpeed] Source enumFromThen :: CSpeed -> CSpeed -> [CSpeed] Source enumFromTo :: CSpeed -> CSpeed -> [CSpeed] Source enumFromThenTo :: CSpeed -> CSpeed -> CSpeed -> [CSpeed] Source
Enum CSsize Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CSsize -> CSsize Source pred :: CSsize -> CSsize Source toEnum :: Int -> CSsize Source fromEnum :: CSsize -> Int Source enumFrom :: CSsize -> [CSsize] Source enumFromThen :: CSsize -> CSsize -> [CSsize] Source enumFromTo :: CSsize -> CSsize -> [CSsize] Source enumFromThenTo :: CSsize -> CSsize -> CSsize -> [CSsize] Source
Enum CTcflag Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CTcflag -> CTcflag Source pred :: CTcflag -> CTcflag Source toEnum :: Int -> CTcflag Source fromEnum :: CTcflag -> Int Source enumFrom :: CTcflag -> [CTcflag] Source enumFromThen :: CTcflag -> CTcflag -> [CTcflag] Source enumFromTo :: CTcflag -> CTcflag -> [CTcflag] Source enumFromThenTo :: CTcflag -> CTcflag -> CTcflag -> [CTcflag] Source
Enum CUid Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: CUid -> CUid Source pred :: CUid -> CUid Source toEnum :: Int -> CUid Source fromEnum :: CUid -> Int Source enumFrom :: CUid -> [CUid] Source enumFromThen :: CUid -> CUid -> [CUid] Source enumFromTo :: CUid -> CUid -> [CUid] Source enumFromThenTo :: CUid -> CUid -> CUid -> [CUid] Source
Enum Fd Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods succ :: Fd -> Fd Source pred :: Fd -> Fd Source toEnum :: Int -> Fd Source fromEnum :: Fd -> Int Source enumFrom :: Fd -> [Fd] Source enumFromThen :: Fd -> Fd -> [Fd] Source enumFromTo :: Fd -> Fd -> [Fd] Source enumFromThenTo :: Fd -> Fd -> Fd -> [Fd] Source
Enum Ordering Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: Ordering -> Ordering Source pred :: Ordering -> Ordering Source toEnum :: Int -> Ordering Source fromEnum :: Ordering -> Int Source enumFrom :: Ordering -> [Ordering] Source enumFromThen :: Ordering -> Ordering -> [Ordering] Source enumFromTo :: Ordering -> Ordering -> [Ordering] Source enumFromThenTo :: Ordering -> Ordering -> Ordering -> [Ordering] Source
Enum GeneralCategory Source	Since: base-2.1
Instance details Defined in GHC.Internal.Unicode Methods succ :: GeneralCategory -> GeneralCategory Source pred :: GeneralCategory -> GeneralCategory Source toEnum :: Int -> GeneralCategory Source fromEnum :: GeneralCategory -> Int Source enumFrom :: GeneralCategory -> [GeneralCategory] Source enumFromThen :: GeneralCategory -> GeneralCategory -> [GeneralCategory] Source enumFromTo :: GeneralCategory -> GeneralCategory -> [GeneralCategory] Source enumFromThenTo :: GeneralCategory -> GeneralCategory -> GeneralCategory -> [GeneralCategory] Source
Enum Word16 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods succ :: Word16 -> Word16 Source pred :: Word16 -> Word16 Source toEnum :: Int -> Word16 Source fromEnum :: Word16 -> Int Source enumFrom :: Word16 -> [Word16] Source enumFromThen :: Word16 -> Word16 -> [Word16] Source enumFromTo :: Word16 -> Word16 -> [Word16] Source enumFromThenTo :: Word16 -> Word16 -> Word16 -> [Word16] Source
Enum Word32 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods succ :: Word32 -> Word32 Source pred :: Word32 -> Word32 Source toEnum :: Int -> Word32 Source fromEnum :: Word32 -> Int Source enumFrom :: Word32 -> [Word32] Source enumFromThen :: Word32 -> Word32 -> [Word32] Source enumFromTo :: Word32 -> Word32 -> [Word32] Source enumFromThenTo :: Word32 -> Word32 -> Word32 -> [Word32] Source
Enum Word64 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods succ :: Word64 -> Word64 Source pred :: Word64 -> Word64 Source toEnum :: Int -> Word64 Source fromEnum :: Word64 -> Int Source enumFrom :: Word64 -> [Word64] Source enumFromThen :: Word64 -> Word64 -> [Word64] Source enumFromTo :: Word64 -> Word64 -> [Word64] Source enumFromThenTo :: Word64 -> Word64 -> Word64 -> [Word64] Source
Enum Word8 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods succ :: Word8 -> Word8 Source pred :: Word8 -> Word8 Source toEnum :: Int -> Word8 Source fromEnum :: Word8 -> Int Source enumFrom :: Word8 -> [Word8] Source enumFromThen :: Word8 -> Word8 -> [Word8] Source enumFromTo :: Word8 -> Word8 -> [Word8] Source enumFromThenTo :: Word8 -> Word8 -> Word8 -> [Word8] Source
Enum Integer Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: Integer -> Integer Source pred :: Integer -> Integer Source toEnum :: Int -> Integer Source fromEnum :: Integer -> Int Source enumFrom :: Integer -> [Integer] Source enumFromThen :: Integer -> Integer -> [Integer] Source enumFromTo :: Integer -> Integer -> [Integer] Source enumFromThenTo :: Integer -> Integer -> Integer -> [Integer] Source
Enum Natural Source	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.Enum Methods succ :: Natural -> Natural Source pred :: Natural -> Natural Source toEnum :: Int -> Natural Source fromEnum :: Natural -> Int Source enumFrom :: Natural -> [Natural] Source enumFromThen :: Natural -> Natural -> [Natural] Source enumFromTo :: Natural -> Natural -> [Natural] Source enumFromThenTo :: Natural -> Natural -> Natural -> [Natural] Source
Enum () Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: () -> () Source pred :: () -> () Source toEnum :: Int -> () Source fromEnum :: () -> Int Source enumFrom :: () -> [()] Source enumFromThen :: () -> () -> [()] Source enumFromTo :: () -> () -> [()] Source enumFromThenTo :: () -> () -> () -> [()] Source
Enum Bool Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: Bool -> Bool Source pred :: Bool -> Bool Source toEnum :: Int -> Bool Source fromEnum :: Bool -> Int Source enumFrom :: Bool -> [Bool] Source enumFromThen :: Bool -> Bool -> [Bool] Source enumFromTo :: Bool -> Bool -> [Bool] Source enumFromThenTo :: Bool -> Bool -> Bool -> [Bool] Source
Enum Char Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: Char -> Char Source pred :: Char -> Char Source toEnum :: Int -> Char Source fromEnum :: Char -> Int Source enumFrom :: Char -> [Char] Source enumFromThen :: Char -> Char -> [Char] Source enumFromTo :: Char -> Char -> [Char] Source enumFromThenTo :: Char -> Char -> Char -> [Char] Source
Enum Double Source	`fromEnum` just truncates its argument, beware of all sorts of overflows. List generators have extremely peculiar behavior, mandated by Haskell Report 2010: >>> [0..1.5] [0.0,1.0,2.0] Since: base-2.1
Instance details Defined in GHC.Internal.Float Methods succ :: Double -> Double Source pred :: Double -> Double Source toEnum :: Int -> Double Source fromEnum :: Double -> Int Source enumFrom :: Double -> [Double] Source enumFromThen :: Double -> Double -> [Double] Source enumFromTo :: Double -> Double -> [Double] Source enumFromThenTo :: Double -> Double -> Double -> [Double] Source
Enum Float Source	`fromEnum` just truncates its argument, beware of all sorts of overflows. List generators have extremely peculiar behavior, mandated by Haskell Report 2010: >>> [0..1.5 :: Float] [0.0,1.0,2.0] Since: base-2.1
Instance details Defined in GHC.Internal.Float Methods succ :: Float -> Float Source pred :: Float -> Float Source toEnum :: Int -> Float Source fromEnum :: Float -> Int Source enumFrom :: Float -> [Float] Source enumFromThen :: Float -> Float -> [Float] Source enumFromTo :: Float -> Float -> [Float] Source enumFromThenTo :: Float -> Float -> Float -> [Float] Source
Enum Int Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: Int -> Int Source pred :: Int -> Int Source toEnum :: Int -> Int Source fromEnum :: Int -> Int Source enumFrom :: Int -> [Int] Source enumFromThen :: Int -> Int -> [Int] Source enumFromTo :: Int -> Int -> [Int] Source enumFromThenTo :: Int -> Int -> Int -> [Int] Source
Enum Levity Source	Since: base-4.16.0.0
Instance details Defined in GHC.Internal.Enum Methods succ :: Levity -> Levity Source pred :: Levity -> Levity Source toEnum :: Int -> Levity Source fromEnum :: Levity -> Int Source enumFrom :: Levity -> [Levity] Source enumFromThen :: Levity -> Levity -> [Levity] Source enumFromTo :: Levity -> Levity -> [Levity] Source enumFromThenTo :: Levity -> Levity -> Levity -> [Levity] Source
Enum VecCount Source	Since: base-4.10.0.0
Instance details Defined in GHC.Internal.Enum Methods succ :: VecCount -> VecCount Source pred :: VecCount -> VecCount Source toEnum :: Int -> VecCount Source fromEnum :: VecCount -> Int Source enumFrom :: VecCount -> [VecCount] Source enumFromThen :: VecCount -> VecCount -> [VecCount] Source enumFromTo :: VecCount -> VecCount -> [VecCount] Source enumFromThenTo :: VecCount -> VecCount -> VecCount -> [VecCount] Source
Enum VecElem Source	Since: base-4.10.0.0
Instance details Defined in GHC.Internal.Enum Methods succ :: VecElem -> VecElem Source pred :: VecElem -> VecElem Source toEnum :: Int -> VecElem Source fromEnum :: VecElem -> Int Source enumFrom :: VecElem -> [VecElem] Source enumFromThen :: VecElem -> VecElem -> [VecElem] Source enumFromTo :: VecElem -> VecElem -> [VecElem] Source enumFromThenTo :: VecElem -> VecElem -> VecElem -> [VecElem] Source
Enum Word Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods succ :: Word -> Word Source pred :: Word -> Word Source toEnum :: Int -> Word Source fromEnum :: Word -> Int Source enumFrom :: Word -> [Word] Source enumFromThen :: Word -> Word -> [Word] Source enumFromTo :: Word -> Word -> [Word] Source enumFromThenTo :: Word -> Word -> Word -> [Word] Source
Enum a => Enum (First a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods succ :: First a -> First a Source pred :: First a -> First a Source toEnum :: Int -> First a Source fromEnum :: First a -> Int Source enumFrom :: First a -> [First a] Source enumFromThen :: First a -> First a -> [First a] Source enumFromTo :: First a -> First a -> [First a] Source enumFromThenTo :: First a -> First a -> First a -> [First a] Source
Enum a => Enum (Last a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods succ :: Last a -> Last a Source pred :: Last a -> Last a Source toEnum :: Int -> Last a Source fromEnum :: Last a -> Int Source enumFrom :: Last a -> [Last a] Source enumFromThen :: Last a -> Last a -> [Last a] Source enumFromTo :: Last a -> Last a -> [Last a] Source enumFromThenTo :: Last a -> Last a -> Last a -> [Last a] Source
Enum a => Enum (Max a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods succ :: Max a -> Max a Source pred :: Max a -> Max a Source toEnum :: Int -> Max a Source fromEnum :: Max a -> Int Source enumFrom :: Max a -> [Max a] Source enumFromThen :: Max a -> Max a -> [Max a] Source enumFromTo :: Max a -> Max a -> [Max a] Source enumFromThenTo :: Max a -> Max a -> Max a -> [Max a] Source
Enum a => Enum (Min a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods succ :: Min a -> Min a Source pred :: Min a -> Min a Source toEnum :: Int -> Min a Source fromEnum :: Min a -> Int Source enumFrom :: Min a -> [Min a] Source enumFromThen :: Min a -> Min a -> [Min a] Source enumFromTo :: Min a -> Min a -> [Min a] Source enumFromThenTo :: Min a -> Min a -> Min a -> [Min a] Source
Enum a => Enum (WrappedMonoid a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods succ :: WrappedMonoid a -> WrappedMonoid a Source pred :: WrappedMonoid a -> WrappedMonoid a Source toEnum :: Int -> WrappedMonoid a Source fromEnum :: WrappedMonoid a -> Int Source enumFrom :: WrappedMonoid a -> [WrappedMonoid a] Source enumFromThen :: WrappedMonoid a -> WrappedMonoid a -> [WrappedMonoid a] Source enumFromTo :: WrappedMonoid a -> WrappedMonoid a -> [WrappedMonoid a] Source enumFromThenTo :: WrappedMonoid a -> WrappedMonoid a -> WrappedMonoid a -> [WrappedMonoid a] Source
Enum a => Enum (And a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods succ :: And a -> And a Source pred :: And a -> And a Source toEnum :: Int -> And a Source fromEnum :: And a -> Int Source enumFrom :: And a -> [And a] Source enumFromThen :: And a -> And a -> [And a] Source enumFromTo :: And a -> And a -> [And a] Source enumFromThenTo :: And a -> And a -> And a -> [And a] Source
Enum a => Enum (Iff a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods succ :: Iff a -> Iff a Source pred :: Iff a -> Iff a Source toEnum :: Int -> Iff a Source fromEnum :: Iff a -> Int Source enumFrom :: Iff a -> [Iff a] Source enumFromThen :: Iff a -> Iff a -> [Iff a] Source enumFromTo :: Iff a -> Iff a -> [Iff a] Source enumFromThenTo :: Iff a -> Iff a -> Iff a -> [Iff a] Source
Enum a => Enum (Ior a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods succ :: Ior a -> Ior a Source pred :: Ior a -> Ior a Source toEnum :: Int -> Ior a Source fromEnum :: Ior a -> Int Source enumFrom :: Ior a -> [Ior a] Source enumFromThen :: Ior a -> Ior a -> [Ior a] Source enumFromTo :: Ior a -> Ior a -> [Ior a] Source enumFromThenTo :: Ior a -> Ior a -> Ior a -> [Ior a] Source
Enum a => Enum (Xor a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods succ :: Xor a -> Xor a Source pred :: Xor a -> Xor a Source toEnum :: Int -> Xor a Source fromEnum :: Xor a -> Int Source enumFrom :: Xor a -> [Xor a] Source enumFromThen :: Xor a -> Xor a -> [Xor a] Source enumFromTo :: Xor a -> Xor a -> [Xor a] Source enumFromThenTo :: Xor a -> Xor a -> Xor a -> [Xor a] Source
Enum a => Enum (Identity a) Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Data.Functor.Identity Methods succ :: Identity a -> Identity a Source pred :: Identity a -> Identity a Source toEnum :: Int -> Identity a Source fromEnum :: Identity a -> Int Source enumFrom :: Identity a -> [Identity a] Source enumFromThen :: Identity a -> Identity a -> [Identity a] Source enumFromTo :: Identity a -> Identity a -> [Identity a] Source enumFromThenTo :: Identity a -> Identity a -> Identity a -> [Identity a] Source
(Enum a, Bounded a, Eq a) => Enum (Down a) Source	Swaps `succ` and `pred` of the underlying type. Since: base-4.18.0.0
Instance details Defined in GHC.Internal.Data.Ord Methods succ :: Down a -> Down a Source pred :: Down a -> Down a Source toEnum :: Int -> Down a Source fromEnum :: Down a -> Int Source enumFrom :: Down a -> [Down a] Source enumFromThen :: Down a -> Down a -> [Down a] Source enumFromTo :: Down a -> Down a -> [Down a] Source enumFromThenTo :: Down a -> Down a -> Down a -> [Down a] Source
Integral a => Enum (Ratio a) Source	Since: base-2.0.1
Instance details Defined in GHC.Internal.Real Methods succ :: Ratio a -> Ratio a Source pred :: Ratio a -> Ratio a Source toEnum :: Int -> Ratio a Source fromEnum :: Ratio a -> Int Source enumFrom :: Ratio a -> [Ratio a] Source enumFromThen :: Ratio a -> Ratio a -> [Ratio a] Source enumFromTo :: Ratio a -> Ratio a -> [Ratio a] Source enumFromThenTo :: Ratio a -> Ratio a -> Ratio a -> [Ratio a] Source
Enum a => Enum (Solo a) Source
Instance details Defined in GHC.Internal.Enum Methods succ :: Solo a -> Solo a Source pred :: Solo a -> Solo a Source toEnum :: Int -> Solo a Source fromEnum :: Solo a -> Int Source enumFrom :: Solo a -> [Solo a] Source enumFromThen :: Solo a -> Solo a -> [Solo a] Source enumFromTo :: Solo a -> Solo a -> [Solo a] Source enumFromThenTo :: Solo a -> Solo a -> Solo a -> [Solo a] Source
Enum (Fixed a) Source	Recall that, for numeric types, `succ` and `pred` typically add and subtract `1`, respectively. This is not true in the case of `Fixed`, whose successor and predecessor functions intuitively return the "next" and "previous" values in the enumeration. The results of these functions thus depend on the resolution of the `Fixed` value. For example, when enumerating values of resolution `10^-3` of `type Milli = Fixed E3`, >>> succ (0.000 :: Milli) 0.001 and likewise >>> pred (0.000 :: Milli) -0.001 In other words, `succ` and `pred` increment and decrement a fixed-precision value by the least amount such that the value's resolution is unchanged. For example, `10^-12` is the smallest (positive) amount that can be added to a value of `type Pico = Fixed E12` without changing its resolution, and so >>> succ (0.000000000000 :: Pico) 0.000000000001 and similarly >>> pred (0.000000000000 :: Pico) -0.000000000001 This is worth bearing in mind when defining `Fixed` arithmetic sequences. In particular, you may be forgiven for thinking the sequence [1..10] :: [Pico] evaluates to `[1, 2, 3, 4, 5, 6, 7, 8, 9, 10] :: [Pico]`. However, this is not true. On the contrary, similarly to the above implementations of `succ` and `pred`, `enumFromTo :: Pico -> Pico -> [Pico]` has a "step size" of `10^-12`. Hence, the list `[1..10] :: [Pico]` has the form [1.000000000000, 1.00000000001, 1.00000000002, ..., 10.000000000000] and contains `9 * 10^12 + 1` values. Since: base-2.1
Instance details Defined in Data.Fixed Methods succ :: Fixed a -> Fixed a Source pred :: Fixed a -> Fixed a Source toEnum :: Int -> Fixed a Source fromEnum :: Fixed a -> Int Source enumFrom :: Fixed a -> [Fixed a] Source enumFromThen :: Fixed a -> Fixed a -> [Fixed a] Source enumFromTo :: Fixed a -> Fixed a -> [Fixed a] Source enumFromThenTo :: Fixed a -> Fixed a -> Fixed a -> [Fixed a] Source
Enum (Proxy s) Source	Since: base-4.7.0.0
Instance details Defined in GHC.Internal.Data.Proxy Methods succ :: Proxy s -> Proxy s Source pred :: Proxy s -> Proxy s Source toEnum :: Int -> Proxy s Source fromEnum :: Proxy s -> Int Source enumFrom :: Proxy s -> [Proxy s] Source enumFromThen :: Proxy s -> Proxy s -> [Proxy s] Source enumFromTo :: Proxy s -> Proxy s -> [Proxy s] Source enumFromThenTo :: Proxy s -> Proxy s -> Proxy s -> [Proxy s] Source
Enum a => Enum (Const a b) Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Data.Functor.Const Methods succ :: Const a b -> Const a b Source pred :: Const a b -> Const a b Source toEnum :: Int -> Const a b Source fromEnum :: Const a b -> Int Source enumFrom :: Const a b -> [Const a b] Source enumFromThen :: Const a b -> Const a b -> [Const a b] Source enumFromTo :: Const a b -> Const a b -> [Const a b] Source enumFromThenTo :: Const a b -> Const a b -> Const a b -> [Const a b] Source
Enum (f a) => Enum (Ap f a) Source	Since: base-4.12.0.0
Instance details Defined in GHC.Internal.Data.Monoid Methods succ :: Ap f a -> Ap f a Source pred :: Ap f a -> Ap f a Source toEnum :: Int -> Ap f a Source fromEnum :: Ap f a -> Int Source enumFrom :: Ap f a -> [Ap f a] Source enumFromThen :: Ap f a -> Ap f a -> [Ap f a] Source enumFromTo :: Ap f a -> Ap f a -> [Ap f a] Source enumFromThenTo :: Ap f a -> Ap f a -> Ap f a -> [Ap f a] Source
Enum (f a) => Enum (Alt f a) Source	Since: base-4.8.0.0
Instance details Defined in GHC.Internal.Data.Semigroup.Internal Methods succ :: Alt f a -> Alt f a Source pred :: Alt f a -> Alt f a Source toEnum :: Int -> Alt f a Source fromEnum :: Alt f a -> Int Source enumFrom :: Alt f a -> [Alt f a] Source enumFromThen :: Alt f a -> Alt f a -> [Alt f a] Source enumFromTo :: Alt f a -> Alt f a -> [Alt f a] Source enumFromThenTo :: Alt f a -> Alt f a -> Alt f a -> [Alt f a] Source
Coercible a b => Enum (Coercion a b) Source	Since: base-4.7.0.0
Instance details Defined in GHC.Internal.Data.Type.Coercion Methods succ :: Coercion a b -> Coercion a b Source pred :: Coercion a b -> Coercion a b Source toEnum :: Int -> Coercion a b Source fromEnum :: Coercion a b -> Int Source enumFrom :: Coercion a b -> [Coercion a b] Source enumFromThen :: Coercion a b -> Coercion a b -> [Coercion a b] Source enumFromTo :: Coercion a b -> Coercion a b -> [Coercion a b] Source enumFromThenTo :: Coercion a b -> Coercion a b -> Coercion a b -> [Coercion a b] Source
a ~ b => Enum (a :~: b) Source	Since: base-4.7.0.0
Instance details Defined in GHC.Internal.Data.Type.Equality Methods succ :: (a :~: b) -> a :~: b Source pred :: (a :~: b) -> a :~: b Source toEnum :: Int -> a :~: b Source fromEnum :: (a :~: b) -> Int Source enumFrom :: (a :~: b) -> [a :~: b] Source enumFromThen :: (a :~: b) -> (a :~: b) -> [a :~: b] Source enumFromTo :: (a :~: b) -> (a :~: b) -> [a :~: b] Source enumFromThenTo :: (a :~: b) -> (a :~: b) -> (a :~: b) -> [a :~: b] Source
a ~~ b => Enum (a :~~: b) Source	Since: base-4.10.0.0
Instance details Defined in GHC.Internal.Data.Type.Equality Methods succ :: (a :~~: b) -> a :~~: b Source pred :: (a :~~: b) -> a :~~: b Source toEnum :: Int -> a :~~: b Source fromEnum :: (a :~~: b) -> Int Source enumFrom :: (a :~~: b) -> [a :~~: b] Source enumFromThen :: (a :~~: b) -> (a :~~: b) -> [a :~~: b] Source enumFromTo :: (a :~~: b) -> (a :~~: b) -> [a :~~: b] Source enumFromThenTo :: (a :~~: b) -> (a :~~: b) -> (a :~~: b) -> [a :~~: b] Source
Enum (f (g a)) => Enum (Compose f g a) Source	Since: base-4.19.0.0
Instance details Defined in Data.Functor.Compose Methods succ :: Compose f g a -> Compose f g a Source pred :: Compose f g a -> Compose f g a Source toEnum :: Int -> Compose f g a Source fromEnum :: Compose f g a -> Int Source enumFrom :: Compose f g a -> [Compose f g a] Source enumFromThen :: Compose f g a -> Compose f g a -> [Compose f g a] Source enumFromTo :: Compose f g a -> Compose f g a -> [Compose f g a] Source enumFromThenTo :: Compose f g a -> Compose f g a -> Compose f g a -> [Compose f g a] Source

class Bounded a where Source

The Bounded class is used to name the upper and lower limits of a type. Ord is not a superclass of Bounded since types that are not totally ordered may also have upper and lower bounds.

The Bounded class may be derived for any enumeration type; minBound is the first constructor listed in the data declaration and maxBound is the last. Bounded may also be derived for single-constructor datatypes whose constituent types are in Bounded.

Methods

minBound :: a Source

maxBound :: a Source

Instances

Instances details

Bounded ByteOrder Source	Since: base-4.11.0.0
Instance details Defined in GHC.Internal.ByteOrder Methods minBound :: ByteOrder Source maxBound :: ByteOrder Source
Bounded All Source	Since: base-2.1
Instance details Defined in GHC.Internal.Data.Semigroup.Internal Methods minBound :: All Source maxBound :: All Source
Bounded Any Source	Since: base-2.1
Instance details Defined in GHC.Internal.Data.Semigroup.Internal Methods minBound :: Any Source maxBound :: Any Source
Bounded CBool Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CBool Source maxBound :: CBool Source
Bounded CChar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CChar Source maxBound :: CChar Source
Bounded CInt Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CInt Source maxBound :: CInt Source
Bounded CIntMax Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CIntMax Source maxBound :: CIntMax Source
Bounded CIntPtr Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CIntPtr Source maxBound :: CIntPtr Source
Bounded CLLong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CLLong Source maxBound :: CLLong Source
Bounded CLong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CLong Source maxBound :: CLong Source
Bounded CPtrdiff Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CPtrdiff Source maxBound :: CPtrdiff Source
Bounded CSChar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CSChar Source maxBound :: CSChar Source
Bounded CShort Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CShort Source maxBound :: CShort Source
Bounded CSigAtomic Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CSigAtomic Source maxBound :: CSigAtomic Source
Bounded CSize Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CSize Source maxBound :: CSize Source
Bounded CUChar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CUChar Source maxBound :: CUChar Source
Bounded CUInt Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CUInt Source maxBound :: CUInt Source
Bounded CUIntMax Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CUIntMax Source maxBound :: CUIntMax Source
Bounded CUIntPtr Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CUIntPtr Source maxBound :: CUIntPtr Source
Bounded CULLong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CULLong Source maxBound :: CULLong Source
Bounded CULong Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CULong Source maxBound :: CULong Source
Bounded CUShort Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CUShort Source maxBound :: CUShort Source
Bounded CWchar Source
Instance details Defined in GHC.Internal.Foreign.C.Types Methods minBound :: CWchar Source maxBound :: CWchar Source
Bounded IntPtr Source
Instance details Defined in GHC.Internal.Foreign.Ptr Methods minBound :: IntPtr Source maxBound :: IntPtr Source
Bounded WordPtr Source
Instance details Defined in GHC.Internal.Foreign.Ptr Methods minBound :: WordPtr Source maxBound :: WordPtr Source
Bounded Associativity Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods minBound :: Associativity Source maxBound :: Associativity Source
Bounded DecidedStrictness Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods minBound :: DecidedStrictness Source maxBound :: DecidedStrictness Source
Bounded SourceStrictness Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods minBound :: SourceStrictness Source maxBound :: SourceStrictness Source
Bounded SourceUnpackedness Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Generics Methods minBound :: SourceUnpackedness Source maxBound :: SourceUnpackedness Source
Bounded Int16 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods minBound :: Int16 Source maxBound :: Int16 Source
Bounded Int32 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods minBound :: Int32 Source maxBound :: Int32 Source
Bounded Int64 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods minBound :: Int64 Source maxBound :: Int64 Source
Bounded Int8 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Int Methods minBound :: Int8 Source maxBound :: Int8 Source
Bounded Extension Source
Instance details Defined in GHC.Internal.LanguageExtensions Methods minBound :: Extension Source maxBound :: Extension Source
Bounded CBlkCnt Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CBlkCnt Source maxBound :: CBlkCnt Source
Bounded CBlkSize Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CBlkSize Source maxBound :: CBlkSize Source
Bounded CClockId Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CClockId Source maxBound :: CClockId Source
Bounded CDev Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CDev Source maxBound :: CDev Source
Bounded CFsBlkCnt Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CFsBlkCnt Source maxBound :: CFsBlkCnt Source
Bounded CFsFilCnt Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CFsFilCnt Source maxBound :: CFsFilCnt Source
Bounded CGid Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CGid Source maxBound :: CGid Source
Bounded CId Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CId Source maxBound :: CId Source
Bounded CIno Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CIno Source maxBound :: CIno Source
Bounded CKey Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CKey Source maxBound :: CKey Source
Bounded CMode Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CMode Source maxBound :: CMode Source
Bounded CNfds Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CNfds Source maxBound :: CNfds Source
Bounded CNlink Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CNlink Source maxBound :: CNlink Source
Bounded COff Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: COff Source maxBound :: COff Source
Bounded CPid Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CPid Source maxBound :: CPid Source
Bounded CRLim Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CRLim Source maxBound :: CRLim Source
Bounded CSocklen Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CSocklen Source maxBound :: CSocklen Source
Bounded CSsize Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CSsize Source maxBound :: CSsize Source
Bounded CTcflag Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CTcflag Source maxBound :: CTcflag Source
Bounded CUid Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: CUid Source maxBound :: CUid Source
Bounded Fd Source
Instance details Defined in GHC.Internal.System.Posix.Types Methods minBound :: Fd Source maxBound :: Fd Source
Bounded Ordering Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: Ordering Source maxBound :: Ordering Source
Bounded GeneralCategory Source	Since: base-2.1
Instance details Defined in GHC.Internal.Unicode Methods minBound :: GeneralCategory Source maxBound :: GeneralCategory Source
Bounded Word16 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods minBound :: Word16 Source maxBound :: Word16 Source
Bounded Word32 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods minBound :: Word32 Source maxBound :: Word32 Source
Bounded Word64 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods minBound :: Word64 Source maxBound :: Word64 Source
Bounded Word8 Source	Since: base-2.1
Instance details Defined in GHC.Internal.Word Methods minBound :: Word8 Source maxBound :: Word8 Source
Bounded () Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: () Source maxBound :: () Source
Bounded Bool Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: Bool Source maxBound :: Bool Source
Bounded Char Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: Char Source maxBound :: Char Source
Bounded Int Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: Int Source maxBound :: Int Source
Bounded Levity Source	Since: base-4.16.0.0
Instance details Defined in GHC.Internal.Enum Methods minBound :: Levity Source maxBound :: Levity Source
Bounded VecCount Source	Since: base-4.10.0.0
Instance details Defined in GHC.Internal.Enum Methods minBound :: VecCount Source maxBound :: VecCount Source
Bounded VecElem Source	Since: base-4.10.0.0
Instance details Defined in GHC.Internal.Enum Methods minBound :: VecElem Source maxBound :: VecElem Source
Bounded Word Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: Word Source maxBound :: Word Source
Bounded a => Bounded (First a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods minBound :: First a Source maxBound :: First a Source
Bounded a => Bounded (Last a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods minBound :: Last a Source maxBound :: Last a Source
Bounded a => Bounded (Max a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods minBound :: Max a Source maxBound :: Max a Source
Bounded a => Bounded (Min a) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods minBound :: Min a Source maxBound :: Min a Source
Bounded m => Bounded (WrappedMonoid m) Source	Since: base-4.9.0.0
Instance details Defined in Data.Semigroup Methods minBound :: WrappedMonoid m Source maxBound :: WrappedMonoid m Source
Bounded a => Bounded (And a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods minBound :: And a Source maxBound :: And a Source
Bounded a => Bounded (Iff a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods minBound :: Iff a Source maxBound :: Iff a Source
Bounded a => Bounded (Ior a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods minBound :: Ior a Source maxBound :: Ior a Source
Bounded a => Bounded (Xor a) Source	Since: base-4.16
Instance details Defined in GHC.Internal.Data.Bits Methods minBound :: Xor a Source maxBound :: Xor a Source
Bounded a => Bounded (Identity a) Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Data.Functor.Identity Methods minBound :: Identity a Source maxBound :: Identity a Source
Bounded a => Bounded (Down a) Source	Swaps `minBound` and `maxBound` of the underlying type. Since: base-4.14.0.0
Instance details Defined in GHC.Internal.Data.Ord Methods minBound :: Down a Source maxBound :: Down a Source
Bounded a => Bounded (Dual a) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Data.Semigroup.Internal Methods minBound :: Dual a Source maxBound :: Dual a Source
Bounded a => Bounded (Product a) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Data.Semigroup.Internal Methods minBound :: Product a Source maxBound :: Product a Source
Bounded a => Bounded (Sum a) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Data.Semigroup.Internal Methods minBound :: Sum a Source maxBound :: Sum a Source
Bounded a => Bounded (Solo a) Source
Instance details Defined in GHC.Internal.Enum Methods minBound :: Solo a Source maxBound :: Solo a Source
Bounded (Proxy t) Source	Since: base-4.7.0.0
Instance details Defined in GHC.Internal.Data.Proxy Methods minBound :: Proxy t Source maxBound :: Proxy t Source
(Bounded a, Bounded b) => Bounded (a, b) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b) Source maxBound :: (a, b) Source
Bounded a => Bounded (Const a b) Source	Since: base-4.9.0.0
Instance details Defined in GHC.Internal.Data.Functor.Const Methods minBound :: Const a b Source maxBound :: Const a b Source
(Applicative f, Bounded a) => Bounded (Ap f a) Source	Since: base-4.12.0.0
Instance details Defined in GHC.Internal.Data.Monoid Methods minBound :: Ap f a Source maxBound :: Ap f a Source
Coercible a b => Bounded (Coercion a b) Source	Since: base-4.7.0.0
Instance details Defined in GHC.Internal.Data.Type.Coercion Methods minBound :: Coercion a b Source maxBound :: Coercion a b Source
a ~ b => Bounded (a :~: b) Source	Since: base-4.7.0.0
Instance details Defined in GHC.Internal.Data.Type.Equality Methods minBound :: a :~: b Source maxBound :: a :~: b Source
(Bounded a, Bounded b, Bounded c) => Bounded (a, b, c) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c) Source maxBound :: (a, b, c) Source
a ~~ b => Bounded (a :~~: b) Source	Since: base-4.10.0.0
Instance details Defined in GHC.Internal.Data.Type.Equality Methods minBound :: a :~~: b Source maxBound :: a :~~: b Source
(Bounded a, Bounded b, Bounded c, Bounded d) => Bounded (a, b, c, d) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d) Source maxBound :: (a, b, c, d) Source
Bounded (f (g a)) => Bounded (Compose f g a) Source	Since: base-4.19.0.0
Instance details Defined in Data.Functor.Compose Methods minBound :: Compose f g a Source maxBound :: Compose f g a Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e) => Bounded (a, b, c, d, e) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e) Source maxBound :: (a, b, c, d, e) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f) => Bounded (a, b, c, d, e, f) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f) Source maxBound :: (a, b, c, d, e, f) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g) => Bounded (a, b, c, d, e, f, g) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g) Source maxBound :: (a, b, c, d, e, f, g) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h) => Bounded (a, b, c, d, e, f, g, h) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h) Source maxBound :: (a, b, c, d, e, f, g, h) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i) => Bounded (a, b, c, d, e, f, g, h, i) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i) Source maxBound :: (a, b, c, d, e, f, g, h, i) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i, Bounded j) => Bounded (a, b, c, d, e, f, g, h, i, j) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i, j) Source maxBound :: (a, b, c, d, e, f, g, h, i, j) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i, Bounded j, Bounded k) => Bounded (a, b, c, d, e, f, g, h, i, j, k) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i, j, k) Source maxBound :: (a, b, c, d, e, f, g, h, i, j, k) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i, Bounded j, Bounded k, Bounded l) => Bounded (a, b, c, d, e, f, g, h, i, j, k, l) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i, j, k, l) Source maxBound :: (a, b, c, d, e, f, g, h, i, j, k, l) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i, Bounded j, Bounded k, Bounded l, Bounded m) => Bounded (a, b, c, d, e, f, g, h, i, j, k, l, m) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i, j, k, l, m) Source maxBound :: (a, b, c, d, e, f, g, h, i, j, k, l, m) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i, Bounded j, Bounded k, Bounded l, Bounded m, Bounded n) => Bounded (a, b, c, d, e, f, g, h, i, j, k, l, m, n) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) Source maxBound :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) Source
(Bounded a, Bounded b, Bounded c, Bounded d, Bounded e, Bounded f, Bounded g, Bounded h, Bounded i, Bounded j, Bounded k, Bounded l, Bounded m, Bounded n, Bounded o) => Bounded (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) Source	Since: base-2.1
Instance details Defined in GHC.Internal.Enum Methods minBound :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) Source maxBound :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) Source

enumerate :: (Enum a, Bounded a) => [a] Source

Returns a list of all values of an enum type

enumerate is often used to list all values of a custom enum data structure, such as a custom Color enum below:

data Color = Yellow | Red | Blue
    deriving (Enum, Bounded, Show)

allColors :: [Color]
allColors = enumerate
-- Result: [Yellow, Red, Blue]

Note that you need to derive the Bounded type class as well, only Enum is not enough. Enum allows for sequential enumeration, while Bounded provides the minBound and maxBound values.

enumerate is commonly used together with the TypeApplications syntax. Here is an example of using enumerate to retrieve all values of the Ordering type:

> enumerate @Ordering

LT, EQ, GT

The @ symbol here is provided by the TypeApplications language extension.

Since: base-4.22.0.0

© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/9.14.1/docs/libraries/base-4.22.0.0-66f8/Data-Enum.html