base-4.11.1.0: Basic libraries

Copyright(c) The University of Glasgow 2001
LicenseBSD-style (see the file libraries/base/LICENSE)
Maintainer[email protected]
Stabilitystable
Portabilityportable
Safe HaskellTrustworthy
LanguageHaskell2010

Prelude

Contents

Description

The Prelude: a standard module. The Prelude is imported by default into all Haskell modules unless either there is an explicit import statement for it, or the NoImplicitPrelude extension is enabled.

Synopsis

Standard types, classes and related functions

Basic data types

data Bool Source #

Constructors

False 
True 
Instances
Bounded Bool Source #

Since: base-2.1

Instance details

Defined in GHC.Enum

Enum Bool Source #

Since: base-2.1

Instance details

Defined in GHC.Enum

Eq Bool 
Instance details

Defined in GHC.Classes

Methods

(==) :: Bool -> Bool -> Bool Source #

(/=) :: Bool -> Bool -> Bool Source #

Data Bool Source #

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Bool -> c Bool Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Bool Source #

toConstr :: Bool -> Constr Source #

dataTypeOf :: Bool -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Bool) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Bool) Source #

gmapT :: (forall b. Data b => b -> b) -> Bool -> Bool Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Bool -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Bool -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Bool -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Bool -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Bool -> m Bool Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Bool -> m Bool Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Bool -> m Bool Source #

Ord Bool 
Instance details

Defined in GHC.Classes

Read Bool Source #

Since: base-2.1

Instance details

Defined in GHC.Read

Show Bool Source # 
Instance details

Defined in GHC.Show

Ix Bool Source #

Since: base-2.1

Instance details

Defined in GHC.Arr

Generic Bool Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Bool :: * -> * Source #

Methods

from :: Bool -> Rep Bool x Source #

to :: Rep Bool x -> Bool Source #

FiniteBits Bool Source #

Since: base-4.7.0.0

Instance details

Defined in Data.Bits

Bits Bool Source #

Interpret Bool as 1-bit bit-field

Since: base-4.7.0.0

Instance details

Defined in Data.Bits

Storable Bool Source #

Since: base-2.1

Instance details

Defined in Foreign.Storable

type Rep Bool Source # 
Instance details

Defined in GHC.Generics

type Rep Bool = D1 (MetaData "Bool" "GHC.Types" "ghc-prim" False) (C1 (MetaCons "False" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "True" PrefixI False) (U1 :: * -> *))

(&&) :: Bool -> Bool -> Bool infixr 3 Source #

Boolean "and"

(||) :: Bool -> Bool -> Bool infixr 2 Source #

Boolean "or"

not :: Bool -> Bool Source #

Boolean "not"

otherwise :: Bool Source #

otherwise is defined as the value True. It helps to make guards more readable. eg.

 f x | x < 0     = ...
     | otherwise = ...

data Maybe a Source #

The Maybe type encapsulates an optional value. A value of type Maybe a either contains a value of type a (represented as Just a), or it is empty (represented as Nothing). Using Maybe is a good way to deal with errors or exceptional cases without resorting to drastic measures such as error.

The Maybe type is also a monad. It is a simple kind of error monad, where all errors are represented by Nothing. A richer error monad can be built using the Either type.

Constructors

Nothing 
Just a 
Instances
Monad Maybe Source #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

(>>=) :: Maybe a -> (a -> Maybe b) -> Maybe b Source #

(>>) :: Maybe a -> Maybe b -> Maybe b Source #

return :: a -> Maybe a Source #

fail :: String -> Maybe a Source #

Functor Maybe Source #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> Maybe a -> Maybe b Source #

(<$) :: a -> Maybe b -> Maybe a Source #

MonadFix Maybe Source #

Since: base-2.1

Instance details

Defined in Control.Monad.Fix

Methods

mfix :: (a -> Maybe a) -> Maybe a Source #

MonadFail Maybe Source #

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.Fail

Methods

fail :: String -> Maybe a Source #

Applicative Maybe Source #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a -> Maybe a Source #

(<*>) :: Maybe (a -> b) -> Maybe a -> Maybe b Source #

liftA2 :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c Source #

(*>) :: Maybe a -> Maybe b -> Maybe b Source #

(<*) :: Maybe a -> Maybe b -> Maybe a Source #

Foldable Maybe Source #

Since: base-2.1

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Maybe m -> m Source #

foldMap :: Monoid m => (a -> m) -> Maybe a -> m Source #

foldr :: (a -> b -> b) -> b -> Maybe a -> b Source #

foldr' :: (a -> b -> b) -> b -> Maybe a -> b Source #

foldl :: (b -> a -> b) -> b -> Maybe a -> b Source #

foldl' :: (b -> a -> b) -> b -> Maybe a -> b Source #

foldr1 :: (a -> a -> a) -> Maybe a -> a Source #

foldl1 :: (a -> a -> a) -> Maybe a -> a Source #

toList :: Maybe a -> [a] Source #

null :: Maybe a -> Bool Source #

length :: Maybe a -> Int Source #

elem :: Eq a => a -> Maybe a -> Bool Source #

maximum :: Ord a => Maybe a -> a Source #

minimum :: Ord a => Maybe a -> a Source #

sum :: Num a => Maybe a -> a Source #

product :: Num a => Maybe a -> a Source #

Traversable Maybe Source #

Since: base-2.1

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Maybe a -> f (Maybe b) Source #

sequenceA :: Applicative f => Maybe (f a) -> f (Maybe a) Source #

mapM :: Monad m => (a -> m b) -> Maybe a -> m (Maybe b) Source #

sequence :: Monad m => Maybe (m a) -> m (Maybe a) Source #

MonadPlus Maybe Source #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mzero :: Maybe a Source #

mplus :: Maybe a -> Maybe a -> Maybe a Source #

Alternative Maybe Source #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

empty :: Maybe a Source #

(<|>) :: Maybe a -> Maybe a -> Maybe a Source #

some :: Maybe a -> Maybe [a] Source #

many :: Maybe a -> Maybe [a] Source #

MonadZip Maybe Source #

Since: base-4.8.0.0

Instance details

Defined in Control.Monad.Zip

Methods

mzip :: Maybe a -> Maybe b -> Maybe (a, b) Source #

mzipWith :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c Source #

munzip :: Maybe (a, b) -> (Maybe a, Maybe b) Source #

Show1 Maybe Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Maybe a -> ShowS Source #

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Maybe a] -> ShowS Source #

Read1 Maybe Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Ord1 Maybe Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare :: (a -> b -> Ordering) -> Maybe a -> Maybe b -> Ordering Source #

Eq1 Maybe Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq :: (a -> b -> Bool) -> Maybe a -> Maybe b -> Bool Source #

Eq a => Eq (Maybe a) Source # 
Instance details

Defined in GHC.Base

Methods

(==) :: Maybe a -> Maybe a -> Bool Source #

(/=) :: Maybe a -> Maybe a -> Bool Source #

Data a => Data (Maybe a) Source #

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Maybe a -> c (Maybe a) Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Maybe a) Source #

toConstr :: Maybe a -> Constr Source #

dataTypeOf :: Maybe a -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Maybe a)) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Maybe a)) Source #

gmapT :: (forall b. Data b => b -> b) -> Maybe a -> Maybe a Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Maybe a -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Maybe a -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Maybe a -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Maybe a -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a) Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a) Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a) Source #

Ord a => Ord (Maybe a) Source # 
Instance details

Defined in GHC.Base

Methods

compare :: Maybe a -> Maybe a -> Ordering Source #

(<) :: Maybe a -> Maybe a -> Bool Source #

(<=) :: Maybe a -> Maybe a -> Bool Source #

(>) :: Maybe a -> Maybe a -> Bool Source #

(>=) :: Maybe a -> Maybe a -> Bool Source #

max :: Maybe a -> Maybe a -> Maybe a Source #

min :: Maybe a -> Maybe a -> Maybe a Source #

Read a => Read (Maybe a) Source #

Since: base-2.1

Instance details

Defined in GHC.Read

Show a => Show (Maybe a) Source # 
Instance details

Defined in GHC.Show

Generic (Maybe a) Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Maybe a) :: * -> * Source #

Methods

from :: Maybe a -> Rep (Maybe a) x Source #

to :: Rep (Maybe a) x -> Maybe a Source #

Semigroup a => Semigroup (Maybe a) Source #

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: Maybe a -> Maybe a -> Maybe a Source #

sconcat :: NonEmpty (Maybe a) -> Maybe a Source #

stimes :: Integral b => b -> Maybe a -> Maybe a Source #

Semigroup a => Monoid (Maybe a) Source #

Lift a semigroup into Maybe forming a Monoid according to http://en.wikipedia.org/wiki/Monoid: "Any semigroup S may be turned into a monoid simply by adjoining an element e not in S and defining e*e = e and e*s = s = s*e for all s ∈ S."

Since 4.11.0: constraint on inner a value generalised from Monoid to Semigroup.

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mempty :: Maybe a Source #

mappend :: Maybe a -> Maybe a -> Maybe a Source #

mconcat :: [Maybe a] -> Maybe a Source #

Generic1 Maybe Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep1 Maybe :: k -> * Source #

Methods

from1 :: Maybe a -> Rep1 Maybe a Source #

to1 :: Rep1 Maybe a -> Maybe a Source #

type Rep (Maybe a) Source # 
Instance details

Defined in GHC.Generics

type Rep (Maybe a) = D1 (MetaData "Maybe" "GHC.Base" "base" False) (C1 (MetaCons "Nothing" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "Just" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Maybe Source # 
Instance details

Defined in GHC.Generics

maybe :: b -> (a -> b) -> Maybe a -> b Source #

The maybe function takes a default value, a function, and a Maybe value. If the Maybe value is Nothing, the function returns the default value. Otherwise, it applies the function to the value inside the Just and returns the result.

Examples

Expand

Basic usage:

>>> maybe False odd (Just 3)
True
>>> maybe False odd Nothing
False

Read an integer from a string using readMaybe. If we succeed, return twice the integer; that is, apply (*2) to it. If instead we fail to parse an integer, return 0 by default:

>>> import Text.Read ( readMaybe )
>>> maybe 0 (*2) (readMaybe "5")
10
>>> maybe 0 (*2) (readMaybe "")
0

Apply show to a Maybe Int. If we have Just n, we want to show the underlying Int n. But if we have Nothing, we return the empty string instead of (for example) "Nothing":

>>> maybe "" show (Just 5)
"5"
>>> maybe "" show Nothing
""

data Either a b Source #

The Either type represents values with two possibilities: a value of type Either a b is either Left a or Right b.

The Either type is sometimes used to represent a value which is either correct or an error; by convention, the Left constructor is used to hold an error value and the Right constructor is used to hold a correct value (mnemonic: "right" also means "correct").

Examples

Expand

The type Either String Int is the type of values which can be either a String or an Int. The Left constructor can be used only on Strings, and the Right constructor can be used only on Ints:

>>> let s = Left "foo" :: Either String Int
>>> s
Left "foo"
>>> let n = Right 3 :: Either String Int
>>> n
Right 3
>>> :type s
s :: Either String Int
>>> :type n
n :: Either String Int

The fmap from our Functor instance will ignore Left values, but will apply the supplied function to values contained in a Right:

>>> let s = Left "foo" :: Either String Int
>>> let n = Right 3 :: Either String Int
>>> fmap (*2) s
Left "foo"
>>> fmap (*2) n
Right 6

The Monad instance for Either allows us to chain together multiple actions which may fail, and fail overall if any of the individual steps failed. First we'll write a function that can either parse an Int from a Char, or fail.

>>> import Data.Char ( digitToInt, isDigit )
>>> :{
    let parseEither :: Char -> Either String Int
        parseEither c
          | isDigit c = Right (digitToInt c)
          | otherwise = Left "parse error"
>>> :}

The following should work, since both '1' and '2' can be parsed as Ints.

>>> :{
    let parseMultiple :: Either String Int
        parseMultiple = do
          x <- parseEither '1'
          y <- parseEither '2'
          return (x + y)
>>> :}
>>> parseMultiple
Right 3

But the following should fail overall, since the first operation where we attempt to parse 'm' as an Int will fail:

>>> :{
    let parseMultiple :: Either String Int
        parseMultiple = do
          x <- parseEither 'm'
          y <- parseEither '2'
          return (x + y)
>>> :}
>>> parseMultiple
Left "parse error"

Constructors

Left a 
Right b 
Instances
Show2 Either Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> Int -> Either a b -> ShowS Source #

liftShowList2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> [Either a b] -> ShowS Source #

Read2 Either Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftReadsPrec2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> Int -> ReadS (Either a b) Source #

liftReadList2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> ReadS [Either a b] Source #

liftReadPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec (Either a b) Source #

liftReadListPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec [Either a b] Source #

Ord2 Either Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare2 :: (a -> b -> Ordering) -> (c -> d -> Ordering) -> Either a c -> Either b d -> Ordering Source #

Eq2 Either Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq2 :: (a -> b -> Bool) -> (c -> d -> Bool) -> Either a c -> Either b d -> Bool Source #

Bifunctor Either Source #

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> Either a c -> Either b d Source #

first :: (a -> b) -> Either a c -> Either b c Source #

second :: (b -> c) -> Either a b -> Either a c Source #

Bifoldable Either Source #

Since: base-4.10.0.0

Instance details

Defined in Data.Bifoldable

Methods

bifold :: Monoid m => Either m m -> m Source #

bifoldMap :: Monoid m => (a -> m) -> (b -> m) -> Either a b -> m Source #

bifoldr :: (a -> c -> c) -> (b -> c -> c) -> c -> Either a b -> c Source #

bifoldl :: (c -> a -> c) -> (c -> b -> c) -> c -> Either a b -> c Source #

Bitraversable Either Source #

Since: base-4.10.0.0

Instance details

Defined in Data.Bitraversable

Methods

bitraverse :: Applicative f => (a -> f c) -> (b -> f d) -> Either a b -> f (Either c d) Source #

Monad (Either e) Source #

Since: base-4.4.0.0

Instance details

Defined in Data.Either

Methods

(>>=) :: Either e a -> (a -> Either e b) -> Either e b Source #

(>>) :: Either e a -> Either e b -> Either e b Source #

return :: a -> Either e a Source #

fail :: String -> Either e a Source #

Functor (Either a) Source #

Since: base-3.0

Instance details

Defined in Data.Either

Methods

fmap :: (a0 -> b) -> Either a a0 -> Either a b Source #

(<$) :: a0 -> Either a b -> Either a a0 Source #

MonadFix (Either e) Source #

Since: base-4.3.0.0

Instance details

Defined in Control.Monad.Fix

Methods

mfix :: (a -> Either e a) -> Either e a Source #

Applicative (Either e) Source #

Since: base-3.0

Instance details

Defined in Data.Either

Methods

pure :: a -> Either e a Source #

(<*>) :: Either e (a -> b) -> Either e a -> Either e b Source #

liftA2 :: (a -> b -> c) -> Either e a -> Either e b -> Either e c Source #

(*>) :: Either e a -> Either e b -> Either e b Source #

(<*) :: Either e a -> Either e b -> Either e a Source #

Foldable (Either a) Source #

Since: base-4.7.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Either a m -> m Source #

foldMap :: Monoid m => (a0 -> m) -> Either a a0 -> m Source #

foldr :: (a0 -> b -> b) -> b -> Either a a0 -> b Source #

foldr' :: (a0 -> b -> b) -> b -> Either a a0 -> b Source #

foldl :: (b -> a0 -> b) -> b -> Either a a0 -> b Source #

foldl' :: (b -> a0 -> b) -> b -> Either a a0 -> b Source #

foldr1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 Source #

foldl1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 Source #

toList :: Either a a0 -> [a0] Source #

null :: Either a a0 -> Bool Source #

length :: Either a a0 -> Int Source #

elem :: Eq a0 => a0 -> Either a a0 -> Bool Source #

maximum :: Ord a0 => Either a a0 -> a0 Source #

minimum :: Ord a0 => Either a a0 -> a0 Source #

sum :: Num a0 => Either a a0 -> a0 Source #

product :: Num a0 => Either a a0 -> a0 Source #

Traversable (Either a) Source #

Since: base-4.7.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a0 -> f b) -> Either a a0 -> f (Either a b) Source #

sequenceA :: Applicative f => Either a (f a0) -> f (Either a a0) Source #

mapM :: Monad m => (a0 -> m b) -> Either a a0 -> m (Either a b) Source #

sequence :: Monad m => Either a (m a0) -> m (Either a a0) Source #

Show a => Show1 (Either a) Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec :: (Int -> a0 -> ShowS) -> ([a0] -> ShowS) -> Int -> Either a a0 -> ShowS Source #

liftShowList :: (Int -> a0 -> ShowS) -> ([a0] -> ShowS) -> [Either a a0] -> ShowS Source #

Read a => Read1 (Either a) Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftReadsPrec :: (Int -> ReadS a0) -> ReadS [a0] -> Int -> ReadS (Either a a0) Source #

liftReadList :: (Int -> ReadS a0) -> ReadS [a0] -> ReadS [Either a a0] Source #

liftReadPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec (Either a a0) Source #

liftReadListPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec [Either a a0] Source #

Ord a => Ord1 (Either a) Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare :: (a0 -> b -> Ordering) -> Either a a0 -> Either a b -> Ordering Source #

Eq a => Eq1 (Either a) Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq :: (a0 -> b -> Bool) -> Either a a0 -> Either a b -> Bool Source #

Generic1 (Either a :: * -> *) Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep1 (Either a) :: k -> * Source #

Methods

from1 :: Either a a0 -> Rep1 (Either a) a0 Source #

to1 :: Rep1 (Either a) a0 -> Either a a0 Source #

(Eq a, Eq b) => Eq (Either a b) Source # 
Instance details

Defined in Data.Either

Methods

(==) :: Either a b -> Either a b -> Bool Source #

(/=) :: Either a b -> Either a b -> Bool Source #

(Data a, Data b) => Data (Either a b) Source #

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b0. Data d => c (d -> b0) -> d -> c b0) -> (forall g. g -> c g) -> Either a b -> c (Either a b) Source #

gunfold :: (forall b0 r. Data b0 => c (b0 -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Either a b) Source #

toConstr :: Either a b -> Constr Source #

dataTypeOf :: Either a b -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Either a b)) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Either a b)) Source #

gmapT :: (forall b0. Data b0 => b0 -> b0) -> Either a b -> Either a b Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Either a b -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Either a b -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Either a b -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Either a b -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Either a b -> m (Either a b) Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Either a b -> m (Either a b) Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Either a b -> m (Either a b) Source #

(Ord a, Ord b) => Ord (Either a b) Source # 
Instance details

Defined in Data.Either

Methods

compare :: Either a b -> Either a b -> Ordering Source #

(<) :: Either a b -> Either a b -> Bool Source #

(<=) :: Either a b -> Either a b -> Bool Source #

(>) :: Either a b -> Either a b -> Bool Source #

(>=) :: Either a b -> Either a b -> Bool Source #

max :: Either a b -> Either a b -> Either a b Source #

min :: Either a b -> Either a b -> Either a b Source #

(Read a, Read b) => Read (Either a b) Source # 
Instance details

Defined in Data.Either

(Show a, Show b) => Show (Either a b) Source # 
Instance details

Defined in Data.Either

Methods

showsPrec :: Int -> Either a b -> ShowS Source #

show :: Either a b -> String Source #

showList :: [Either a b] -> ShowS Source #

Generic (Either a b) Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Either a b) :: * -> * Source #

Methods

from :: Either a b -> Rep (Either a b) x Source #

to :: Rep (Either a b) x -> Either a b Source #

Semigroup (Either a b) Source #

Since: base-4.9.0.0

Instance details

Defined in Data.Either

Methods

(<>) :: Either a b -> Either a b -> Either a b Source #

sconcat :: NonEmpty (Either a b) -> Either a b Source #

stimes :: Integral b0 => b0 -> Either a b -> Either a b Source #

type Rep1 (Either a :: * -> *) Source # 
Instance details

Defined in GHC.Generics

type Rep (Either a b) Source # 
Instance details

Defined in GHC.Generics

either :: (a -> c) -> (b -> c) -> Either a b -> c Source #

Case analysis for the Either type. If the value is Left a, apply the first function to a; if it is Right b, apply the second function to b.

Examples

Expand

We create two values of type Either String Int, one using the Left constructor and another using the Right constructor. Then we apply "either" the length function (if we have a String) or the "times-two" function (if we have an Int):

>>> let s = Left "foo" :: Either String Int
>>> let n = Right 3 :: Either String Int
>>> either length (*2) s
3
>>> either length (*2) n
6

data Ordering Source #

Constructors

LT 
EQ 
GT 
Instances
Bounded Ordering Source #

Since: base-2.1

Instance details

Defined in GHC.Enum

Enum Ordering Source #

Since: base-2.1

Instance details

Defined in GHC.Enum

Eq Ordering 
Instance details

Defined in GHC.Classes

Data Ordering Source #

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Ordering -> c Ordering Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Ordering Source #

toConstr :: Ordering -> Constr Source #

dataTypeOf :: Ordering -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Ordering) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Ordering) Source #

gmapT :: (forall b. Data b => b -> b) -> Ordering -> Ordering Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Ordering -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Ordering -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Ordering -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Ordering -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Ordering -> m Ordering Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Ordering -> m Ordering Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Ordering -> m Ordering Source #

Ord Ordering 
Instance details

Defined in GHC.Classes

Read Ordering Source #

Since: base-2.1

Instance details

Defined in GHC.Read

Show Ordering Source # 
Instance details

Defined in GHC.Show

Ix Ordering Source #

Since: base-2.1

Instance details

Defined in GHC.Arr

Generic Ordering Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Ordering :: * -> * Source #

Semigroup Ordering Source #

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Monoid Ordering Source #

Since: base-2.1

Instance details

Defined in GHC.Base

type Rep Ordering Source # 
Instance details

Defined in GHC.Generics

type Rep Ordering = D1 (MetaData "Ordering" "GHC.Types" "ghc-prim" False) (C1 (MetaCons "LT" PrefixI False) (U1 :: * -> *) :+: (C1 (MetaCons "EQ" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "GT" PrefixI False) (U1 :: * -> *)))

data Char Source #

The character type Char is an enumeration whose values represent Unicode (or equivalently ISO/IEC 10646) code points (i.e. characters, see http://www.unicode.org/ for details). This set extends the ISO 8859-1 (Latin-1) character set (the first 256 characters), which is itself an extension of the ASCII character set (the first 128 characters). A character literal in Haskell has type Char.

To convert a Char to or from the corresponding Int value defined by Unicode, use toEnum and fromEnum from the Enum class respectively (or equivalently ord and chr).

Instances
Bounded Char Source #

Since: base-2.1

Instance details

Defined in GHC.Enum

Enum Char Source #

Since: base-2.1

Instance details

Defined in GHC.Enum

Eq Char 
Instance details

Defined in GHC.Classes

Methods

(==) :: Char -> Char -> Bool Source #

(/=) :: Char -> Char -> Bool Source #

Data Char Source #

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Char -> c Char Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Char Source #

toConstr :: Char -> Constr Source #

dataTypeOf :: Char -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Char) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Char) Source #

gmapT :: (forall b. Data b => b -> b) -> Char -> Char Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Char -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Char -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Char -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Char -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Char -> m Char Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Char -> m Char Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Char -> m Char Source #

Ord Char 
Instance details

Defined in GHC.Classes

Read Char Source #

Since: base-2.1

Instance details

Defined in GHC.Read

Show Char Source #

Since: base-2.1

Instance details

Defined in GHC.Show

Ix Char Source #

Since: base-2.1

Instance details

Defined in GHC.Arr

Storable Char Source #

Since: base-2.1

Instance details

Defined in Foreign.Storable

IsChar Char Source #

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Char Source #

Since: base-2.1

Instance details

Defined in Text.Printf

Generic1 (URec Char :: k -> *) Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep1 (URec Char) :: k -> * Source #

Methods

from1 :: URec Char a -> Rep1 (URec Char) a Source #

to1 :: Rep1 (URec Char) a -> URec Char a Source #

Functor (URec Char :: * -> *) Source # 
Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Char a -> URec Char b Source #

(<$) :: a -> URec Char b -> URec Char a Source #

Foldable (URec Char :: * -> *) Source # 
Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Char m -> m Source #

foldMap :: Monoid m => (a -> m) -> URec Char a -> m Source #

foldr :: (a -> b -> b) -> b -> URec Char a -> b Source #

foldr' :: (a -> b -> b) -> b -> URec Char a -> b Source #

foldl :: (b -> a -> b) -> b -> URec Char a -> b Source #

foldl' :: (b -> a -> b) -> b -> URec Char a -> b Source #

foldr1 :: (a -> a -> a) -> URec Char a -> a Source #

foldl1 :: (a -> a -> a) -> URec Char a -> a Source #

toList :: URec Char a -> [a] Source #

null :: URec Char a -> Bool Source #

length :: URec Char a -> Int Source #

elem :: Eq a => a -> URec Char a -> Bool Source #

maximum :: Ord a => URec Char a -> a Source #

minimum :: Ord a => URec Char a -> a Source #

sum :: Num a => URec Char a -> a Source #

product :: Num a => URec Char a -> a Source #

Traversable (URec Char :: * -> *) Source # 
Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Char a -> f (URec Char b) Source #

sequenceA :: Applicative f => URec Char (f a) -> f (URec Char a) Source #

mapM :: Monad m => (a -> m b) -> URec Char a -> m (URec Char b) Source #

sequence :: Monad m => URec Char (m a) -> m (URec Char a) Source #

Eq (URec Char p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec Char p -> URec Char p -> Bool Source #

(/=) :: URec Char p -> URec Char p -> Bool Source #

Ord (URec Char p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: URec Char p -> URec Char p -> Ordering Source #

(<) :: URec Char p -> URec Char p -> Bool Source #

(<=) :: URec Char p -> URec Char p -> Bool Source #

(>) :: URec Char p -> URec Char p -> Bool Source #

(>=) :: URec Char p -> URec Char p -> Bool Source #

max :: URec Char p -> URec Char p -> URec Char p Source #

min :: URec Char p -> URec Char p -> URec Char p Source #

Show (URec Char p) Source # 
Instance details

Defined in GHC.Generics

Generic (URec Char p) Source # 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Char p) :: * -> * Source #

Methods

from :: URec Char p -> Rep (URec Char p) x Source #

to :: Rep (URec Char p) x -> URec Char p Source #

data URec Char (p :: k) Source #

Used for marking occurrences of Char#

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

data URec Char (p :: k) = UChar {}
type Rep1 (URec Char :: k -> *) Source # 
Instance details

Defined in GHC.Generics

type Rep1 (URec Char :: k -> *) = D1 (MetaData "URec" "GHC.Generics" "base" False) (C1 (MetaCons "UChar" PrefixI True) (S1 (MetaSel (Just "uChar#") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (UChar :: k -> *)))
type Rep (URec Char p) Source # 
Instance details

Defined in GHC.Generics

type Rep (URec Char p) = D1 (MetaData "URec" "GHC.Generics" "base" False) (C1 (MetaCons "UChar" PrefixI True) (S1 (MetaSel (Just "uChar#") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (UChar :: * -> *)))

type String = [Char] Source #

A String is a list of characters. String constants in Haskell are values of type String.

Tuples

fst :: (a, b) -> a Source #

Extract the first component of a pair.

snd :: (a, b) -> b Source #

Extract the second component of a pair.

curry :: ((a, b) -> c) -> a -> b -> c Source #

curry converts an uncurried function to a curried function.

Examples

Expand
>>> curry fst 1 2
1

uncurry :: (a -> b -> c) -> (a, b) -> c Source #

uncurry converts a curried function to a function on pairs.

Examples

Expand
>>> uncurry (+) (1,2)
3
>>> uncurry ($) (show, 1)
"1"
>>> map (uncurry max) [(1,2), (3,4), (6,8)]
[2,4,8]

Basic type classes

class Eq a where Source #

The Eq class defines equality (==) and inequality (/=). All the basic datatypes exported by the Prelude are instances of Eq, and Eq may be derived for any datatype whose constituents are also instances of Eq.

Minimal complete definition: either == or /=.

Minimal complete definition

(==) | (/=)

Methods

(==) :: a -> a -> Bool infix 4 Source #

(/=) :: a -> a -> Bool infix 4 Source #

Instances
Eq Bool 
Instance details

Defined in GHC.Classes

Methods

(==) :: Bool -> Bool -> Bool Source #

(/=) :: Bool -> Bool -> Bool Source #

Eq Char 
Instance details

Defined in GHC.Classes

Methods

(==) :: Char -> Char -> Bool Source #

(/=) :: Char -> Char -> Bool Source #

Eq Double 
Instance details

Defined in GHC.Classes

Eq Float 
Instance details

Defined in GHC.Classes

Methods

(==) :: Float -> Float -> Bool Source #

(/=) :: Float -> Float -> Bool Source #

Eq Int 
Instance details

Defined in GHC.Classes

Methods

(==) :: Int -> Int -> Bool Source #

(/=) :: Int -> Int -> Bool Source #

Eq Int8 #

Since: base-2.1

Instance details

Defined in GHC.Int

Methods

(==) :: Int8 -> Int8 -> Bool Source #

(/=) :: Int8 -> Int8 -> Bool Source #

Eq Int16 #

Since: base-2.1

Instance details

Defined in GHC.Int

Methods

(==) :: Int16 -> Int16 -> Bool Source #

(/=) :: Int16 -> Int16 -> Bool Source #

Eq Int32 #

Since: base-2.1

Instance details

Defined in GHC.Int

Methods

(==) :: Int32 -> Int32 -> Bool Source #

(/=) :: Int32 -> Int32 -> Bool Source #

Eq Int64 #

Since: base-2.1

Instance details

Defined in GHC.Int

Methods

(==) :: Int64 -> Int64 -> Bool Source #

(/=) :: Int64 -> Int64 -> Bool Source #

Eq Integer 
Instance details

Defined in GHC.Integer.Type

Eq Natural # 
Instance details

Defined in GHC.Natural

Eq Ordering 
Instance details

Defined in GHC.Classes

Eq Word 
Instance details

Defined in GHC.Classes

Methods

(==) :: Word -> Word -> Bool Source #

(/=) :: Word -> Word -> Bool Source #

Eq Word8 #

Since: base-2.1

Instance details

Defined in GHC.Word

Methods

(==) :: Word8 -> Word8 -> Bool Source #

(/=) :: Word8 -> Word8 -> Bool Source #

Eq Word16 #

Since: base-2.1

Instance details

Defined in GHC.Word

Eq Word32 #

Since: base-2.1

Instance details

Defined in GHC.Word

Eq Word64 #

Since: base-2.1

Instance details

Defined in GHC.Word

Eq SomeTypeRep # 
Instance details

Defined in Data.Typeable.Internal

Eq () 
Instance details

Defined in GHC.Classes

Methods

(==) :: () -> () -> Bool Source #

(/=) :: () -> () -> Bool Source #

Eq TyCon 
Instance details

Defined in GHC.Classes

Methods

(==) :: TyCon -> TyCon -> Bool Source #

(/=) :: TyCon -> TyCon -> Bool Source #

Eq Module 
Instance details

Defined in GHC.Classes

Eq TrName 
Instance details

Defined in GHC.Classes

Eq BigNat 
Instance details

Defined in GHC.Integer.Type

Eq SrcLoc # 
Instance details

Defined in GHC.Stack.Types

Eq GeneralCategory # 
Instance details

Defined in GHC.Unicode

Eq Number # 
Instance details

Defined in Text.Read.Lex

Eq Lexeme # 
Instance details

Defined in Text.Read.Lex

Eq Fingerprint # 
Instance details

Defined in GHC.Fingerprint.Type

Eq IOMode # 
Instance details

Defined in GHC.IO.IOMode

Eq IntPtr # 
Instance details

Defined in Foreign.Ptr

Eq WordPtr # 
Instance details

Defined in Foreign.Ptr

Eq CUIntMax # 
Instance details

Defined in Foreign.C.Types

Eq CIntMax # 
Instance details

Defined in Foreign.C.Types

Eq CUIntPtr # 
Instance details

Defined in Foreign.C.Types

Eq CIntPtr # 
Instance details

Defined in Foreign.C.Types

Eq CSUSeconds # 
Instance details

Defined in Foreign.C.Types

Eq CUSeconds # 
Instance details

Defined in Foreign.C.Types

Eq CTime # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CTime -> CTime -> Bool Source #

(/=) :: CTime -> CTime -> Bool Source #

Eq CClock # 
Instance details

Defined in Foreign.C.Types

Eq CSigAtomic # 
Instance details

Defined in Foreign.C.Types

Eq CWchar # 
Instance details

Defined in Foreign.C.Types

Eq CSize # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CSize -> CSize -> Bool Source #

(/=) :: CSize -> CSize -> Bool Source #

Eq CPtrdiff # 
Instance details

Defined in Foreign.C.Types

Eq CDouble # 
Instance details

Defined in Foreign.C.Types

Eq CFloat # 
Instance details

Defined in Foreign.C.Types

Eq CBool # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CBool -> CBool -> Bool Source #

(/=) :: CBool -> CBool -> Bool Source #

Eq CULLong # 
Instance details

Defined in Foreign.C.Types

Eq CLLong # 
Instance details

Defined in Foreign.C.Types

Eq CULong # 
Instance details

Defined in Foreign.C.Types

Eq CLong # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CLong -> CLong -> Bool Source #

(/=) :: CLong -> CLong -> Bool Source #

Eq CUInt # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CUInt -> CUInt -> Bool Source #

(/=) :: CUInt -> CUInt -> Bool Source #

Eq CInt # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CInt -> CInt -> Bool Source #

(/=) :: CInt -> CInt -> Bool Source #

Eq CUShort # 
Instance details

Defined in Foreign.C.Types

Eq CShort # 
Instance details

Defined in Foreign.C.Types

Eq CUChar # 
Instance details

Defined in Foreign.C.Types

Eq CSChar # 
Instance details

Defined in Foreign.C.Types

Eq CChar # 
Instance details

Defined in Foreign.C.Types

Methods

(==) :: CChar -> CChar -> Bool Source #

(/=) :: CChar -> CChar -> Bool Source #

Eq SomeNat #

Since: base-4.7.0.0

Instance details

Defined in GHC.TypeNats

Eq SomeSymbol #

Since: base-4.7.0.0

Instance details

Defined in GHC.TypeLits

Eq DecidedStrictness # 
Instance details

Defined in GHC.Generics

Eq SourceStrictness # 
Instance details

Defined in GHC.Generics

Eq SourceUnpackedness # 
Instance details

Defined in GHC.Generics

Eq Associativity # 
Instance details

Defined in GHC.Generics

Eq Fixity # 
Instance details

Defined in GHC.Generics

Eq Any # 
Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Any -> Any -> Bool Source #

(/=) :: Any -> Any -> Bool Source #

Eq All # 
Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: All -> All -> Bool Source #

(/=) :: All -> All -> Bool Source #

Eq ArithException # 
Instance details

Defined in GHC.Exception

Eq ErrorCall # 
Instance details

Defined in GHC.Exception

Eq IOException #

Since: base-4.1.0.0

Instance details

Defined in GHC.IO.Exception

Eq MaskingState # 
Instance details

Defined in GHC.IO

Eq BufferState # 
Instance details

Defined in GHC.IO.Buffer

Eq CodingProgress # 
Instance details

Defined in GHC.IO.Encoding.Types

Eq SeekMode # 
Instance details

Defined in GHC.IO.Device

Eq IODeviceType # 
Instance details

Defined in GHC.IO.Device

Eq NewlineMode # 
Instance details

Defined in GHC.IO.Handle.Types

Eq Newline # 
Instance details

Defined in GHC.IO.Handle.Types

Eq BufferMode # 
Instance details

Defined in GHC.IO.Handle.Types

Eq Handle #

Since: base-4.1.0.0

Instance details

Defined in GHC.IO.Handle.Types

Eq IOErrorType #

Since: base-4.1.0.0

Instance details

Defined in GHC.IO.Exception

Eq ExitCode # 
Instance details

Defined in GHC.IO.Exception

Eq ArrayException # 
Instance details

Defined in GHC.IO.Exception

Eq AsyncException # 
Instance details

Defined in GHC.IO.Exception

Eq Errno #

Since: base-2.1

Instance details

Defined in Foreign.C.Error

Methods

(==) :: Errno -> Errno -> Bool Source #

(/=) :: Errno -> Errno -> Bool Source #

Eq Fd # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: Fd -> Fd -> Bool Source #

(/=) :: Fd -> Fd -> Bool Source #

Eq CTimer # 
Instance details

Defined in System.Posix.Types

Eq CKey # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CKey -> CKey -> Bool Source #

(/=) :: CKey -> CKey -> Bool Source #

Eq CId # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CId -> CId -> Bool Source #

(/=) :: CId -> CId -> Bool Source #

Eq CFsFilCnt # 
Instance details

Defined in System.Posix.Types

Eq CFsBlkCnt # 
Instance details

Defined in System.Posix.Types

Eq CClockId # 
Instance details

Defined in System.Posix.Types

Eq CBlkCnt # 
Instance details

Defined in System.Posix.Types

Eq CBlkSize # 
Instance details

Defined in System.Posix.Types

Eq CRLim # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CRLim -> CRLim -> Bool Source #

(/=) :: CRLim -> CRLim -> Bool Source #

Eq CTcflag # 
Instance details

Defined in System.Posix.Types

Eq CSpeed # 
Instance details

Defined in System.Posix.Types

Eq CCc # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CCc -> CCc -> Bool Source #

(/=) :: CCc -> CCc -> Bool Source #

Eq CUid # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CUid -> CUid -> Bool Source #

(/=) :: CUid -> CUid -> Bool Source #

Eq CNlink # 
Instance details

Defined in System.Posix.Types

Eq CGid # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CGid -> CGid -> Bool Source #

(/=) :: CGid -> CGid -> Bool Source #

Eq CSsize # 
Instance details

Defined in System.Posix.Types

Eq CPid # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CPid -> CPid -> Bool Source #

(/=) :: CPid -> CPid -> Bool Source #

Eq COff # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: COff -> COff -> Bool Source #

(/=) :: COff -> COff -> Bool Source #

Eq CMode # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CMode -> CMode -> Bool Source #

(/=) :: CMode -> CMode -> Bool Source #

Eq CIno # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CIno -> CIno -> Bool Source #

(/=) :: CIno -> CIno -> Bool Source #

Eq CDev # 
Instance details

Defined in System.Posix.Types

Methods

(==) :: CDev -> CDev -> Bool Source #

(/=) :: CDev -> CDev -> Bool Source #

Eq Lifetime # 
Instance details

Defined in GHC.Event.Internal

Eq Event # 
Instance details

Defined in GHC.Event.Internal

Methods

(==) :: Event -> Event -> Bool Source #

(/=) :: Event -> Event -> Bool Source #

Eq ThreadStatus # 
Instance details

Defined in GHC.Conc.Sync

Eq BlockReason # 
Instance details

Defined in GHC.Conc.Sync

Eq ThreadId #

Since: base-4.2.0.0

Instance details

Defined in GHC.Conc.Sync

Eq TimeoutKey # 
Instance details

Defined in GHC.Event.TimerManager

Eq FdKey # 
Instance details

Defined in GHC.Event.Manager

Methods

(==) :: FdKey -> FdKey -> Bool Source #

(/=) :: FdKey -> FdKey -> Bool Source #

Eq HandlePosn #

Since: base-4.1.0.0

Instance details

Defined in GHC.IO.Handle

Eq Version #

Since: base-2.1

Instance details

Defined in Data.Version

Eq ByteOrder # 
Instance details

Defined in GHC.ByteOrder

Eq Unique # 
Instance details

Defined in Data.Unique

Eq Fixity # 
Instance details

Defined in Data.Data

Eq ConstrRep # 
Instance details

Defined in Data.Data

Eq DataRep # 
Instance details

Defined in Data.Data

Eq Constr #

Equality of constructors

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Eq SpecConstrAnnotation # 
Instance details

Defined in GHC.Exts

Eq Void #

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Methods

(==) :: Void -> Void -> Bool Source #

(/=) :: Void -> Void -> Bool Source #

Eq a => Eq [a] 
Instance details

Defined in GHC.Classes

Methods

(==) :: [a] -> [a] -> Bool Source #

(/=) :: [a] -> [a] -> Bool Source #

Eq a => Eq (Maybe a) # 
Instance details

Defined in GHC.Base

Methods

(==) :: Maybe a -> Maybe a -> Bool Source #

(/=) :: Maybe a -> Maybe a -> Bool Source #

Eq a => Eq (Ratio a) # 
Instance details

Defined in GHC.Real

Methods

(==) :: Ratio a -> Ratio a -> Bool Source #

(/=) :: Ratio a -> Ratio a -> Bool Source #

Eq (StablePtr a) #

Since: base-2.1

Instance details

Defined in GHC.Stable

Eq (Ptr a) # 
Instance details

Defined in GHC.Ptr

Methods

(==) :: Ptr a -> Ptr a -> Bool Source #

(/=) :: Ptr a -> Ptr a -> Bool Source #

Eq (FunPtr a) # 
Instance details

Defined in GHC.Ptr

Methods

(==) :: FunPtr a -> FunPtr a -> Bool Source #

(/=) :: FunPtr a -> FunPtr a -> Bool Source #

Eq p => Eq (Par1 p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: Par1 p -> Par1 p -> Bool Source #

(/=) :: Par1 p -> Par1 p -> Bool Source #

Eq a => Eq (NonEmpty a) # 
Instance details

Defined in GHC.Base

Methods

(==) :: NonEmpty a -> NonEmpty a -> Bool Source #

(/=) :: NonEmpty a -> NonEmpty a -> Bool Source #

Eq (MVar a) #

Since: base-4.1.0.0

Instance details

Defined in GHC.MVar

Methods

(==) :: MVar a -> MVar a -> Bool Source #

(/=) :: MVar a -> MVar a -> Bool Source #

Eq a => Eq (Down a) # 
Instance details

Defined in Data.Ord

Methods

(==) :: Down a -> Down a -> Bool Source #

(/=) :: Down a -> Down a -> Bool Source #

Eq a => Eq (Product a) # 
Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Product a -> Product a -> Bool Source #

(/=) :: Product a -> Product a -> Bool Source #

Eq a => Eq (Sum a) # 
Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Sum a -> Sum a -> Bool Source #

(/=) :: Sum a -> Sum a -> Bool Source #

Eq a => Eq (Dual a) # 
Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Dual a -> Dual a -> Bool Source #

(/=) :: Dual a -> Dual a -> Bool Source #

Eq a => Eq (Last a) # 
Instance details

Defined in Data.Monoid

Methods

(==) :: Last a -> Last a -> Bool Source #

(/=) :: Last a -> Last a -> Bool Source #

Eq a => Eq (First a) # 
Instance details

Defined in Data.Monoid

Methods

(==) :: First a -> First a -> Bool Source #

(/=) :: First a -> First a -> Bool Source #

Eq (IORef a) #

Pointer equality.

Since: base-4.1.0.0

Instance details

Defined in GHC.IORef

Methods

(==) :: IORef a -> IORef a -> Bool Source #

(/=) :: IORef a -> IORef a -> Bool Source #

Eq (ForeignPtr a) #

Since: base-2.1

Instance details

Defined in GHC.ForeignPtr

Eq (TVar a) #

Since: base-4.8.0.0

Instance details

Defined in GHC.Conc.Sync

Methods

(==) :: TVar a -> TVar a -> Bool Source #

(/=) :: TVar a -> TVar a -> Bool Source #

Eq a => Eq (Identity a) # 
Instance details

Defined in Data.Functor.Identity

Methods

(==) :: Identity a -> Identity a -> Bool Source #

(/=) :: Identity a -> Identity a -> Bool Source #

Eq a => Eq (ZipList a) # 
Instance details

Defined in Control.Applicative

Methods

(==) :: ZipList a -> ZipList a -> Bool Source #

(/=) :: ZipList a -> ZipList a -> Bool Source #

Eq (StableName a) #

Since: base-2.1

Instance details

Defined in System.Mem.StableName

Eq (Chan a) # 
Instance details

Defined in Control.Concurrent.Chan

Methods

(==) :: Chan a -> Chan a -> Bool Source #

(/=) :: Chan a -> Chan a -> Bool Source #

Eq a => Eq (Option a) # 
Instance details

Defined in Data.Semigroup

Methods

(==) :: Option a -> Option a -> Bool Source #

(/=) :: Option a -> Option a -> Bool Source #

Eq m => Eq (WrappedMonoid m) # 
Instance details

Defined in Data.Semigroup

Eq a => Eq (Last a) # 
Instance details

Defined in Data.Semigroup

Methods

(==) :: Last a -> Last a -> Bool Source #

(/=) :: Last a -> Last a -> Bool Source #

Eq a => Eq (First a) # 
Instance details

Defined in Data.Semigroup

Methods

(==) :: First a -> First a -> Bool Source #

(/=) :: First a -> First a -> Bool Source #

Eq a => Eq (Max a) # 
Instance details

Defined in Data.Semigroup

Methods

(==) :: Max a -> Max a -> Bool Source #

(/=) :: Max a -> Max a -> Bool Source #

Eq a => Eq (Min a) # 
Instance details

Defined in Data.Semigroup

Methods

(==) :: Min a -> Min a -> Bool Source #

(/=) :: Min a -> Min a -> Bool Source #

Eq (Fixed a) # 
Instance details

Defined in Data.Fixed

Methods

(==) :: Fixed a -> Fixed a -> Bool Source #

(/=) :: Fixed a -> Fixed a -> Bool Source #

Eq a => Eq (Complex a) # 
Instance details

Defined in Data.Complex

Methods

(==) :: Complex a -> Complex a -> Bool Source #

(/=) :: Complex a -> Complex a -> Bool Source #

(Eq a, Eq b) => Eq (Either a b) # 
Instance details

Defined in Data.Either

Methods

(==) :: Either a b -> Either a b -> Bool Source #

(/=) :: Either a b -> Either a b -> Bool Source #

Eq (V1 p) #

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(==) :: V1 p -> V1 p -> Bool Source #

(/=) :: V1 p -> V1 p -> Bool Source #

Eq (U1 p) #

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(==) :: U1 p -> U1 p -> Bool Source #

(/=) :: U1 p -> U1 p -> Bool Source #

Eq (TypeRep a) #

Since: base-2.1

Instance details

Defined in Data.Typeable.Internal

Methods

(==) :: TypeRep a -> TypeRep a -> Bool Source #

(/=) :: TypeRep a -> TypeRep a -> Bool Source #

(Eq a, Eq b) => Eq (a, b) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b) -> (a, b) -> Bool Source #

(/=) :: (a, b) -> (a, b) -> Bool Source #

Eq (STRef s a) #

Pointer equality.

Since: base-2.1

Instance details

Defined in GHC.STRef

Methods

(==) :: STRef s a -> STRef s a -> Bool Source #

(/=) :: STRef s a -> STRef s a -> Bool Source #

Eq (Proxy s) #

Since: base-4.7.0.0

Instance details

Defined in Data.Proxy

Methods

(==) :: Proxy s -> Proxy s -> Bool Source #

(/=) :: Proxy s -> Proxy s -> Bool Source #

Eq a => Eq (Arg a b) #

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: Arg a b -> Arg a b -> Bool Source #

(/=) :: Arg a b -> Arg a b -> Bool Source #

Eq (f p) => Eq (Rec1 f p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: Rec1 f p -> Rec1 f p -> Bool Source #

(/=) :: Rec1 f p -> Rec1 f p -> Bool Source #

Eq (URec Word p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec Word p -> URec Word p -> Bool Source #

(/=) :: URec Word p -> URec Word p -> Bool Source #

Eq (URec Int p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec Int p -> URec Int p -> Bool Source #

(/=) :: URec Int p -> URec Int p -> Bool Source #

Eq (URec Float p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec Float p -> URec Float p -> Bool Source #

(/=) :: URec Float p -> URec Float p -> Bool Source #

Eq (URec Double p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec Double p -> URec Double p -> Bool Source #

(/=) :: URec Double p -> URec Double p -> Bool Source #

Eq (URec Char p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec Char p -> URec Char p -> Bool Source #

(/=) :: URec Char p -> URec Char p -> Bool Source #

Eq (URec (Ptr ()) p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool Source #

(/=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool Source #

(Eq a, Eq b, Eq c) => Eq (a, b, c) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c) -> (a, b, c) -> Bool Source #

(/=) :: (a, b, c) -> (a, b, c) -> Bool Source #

Eq (a :~: b) # 
Instance details

Defined in Data.Type.Equality

Methods

(==) :: (a :~: b) -> (a :~: b) -> Bool Source #

(/=) :: (a :~: b) -> (a :~: b) -> Bool Source #

Eq (Coercion a b) # 
Instance details

Defined in Data.Type.Coercion

Methods

(==) :: Coercion a b -> Coercion a b -> Bool Source #

(/=) :: Coercion a b -> Coercion a b -> Bool Source #

Eq (f a) => Eq (Alt f a) # 
Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Alt f a -> Alt f a -> Bool Source #

(/=) :: Alt f a -> Alt f a -> Bool Source #

Eq a => Eq (Const a b) # 
Instance details

Defined in Data.Functor.Const

Methods

(==) :: Const a b -> Const a b -> Bool Source #

(/=) :: Const a b -> Const a b -> Bool Source #

Eq c => Eq (K1 i c p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: K1 i c p -> K1 i c p -> Bool Source #

(/=) :: K1 i c p -> K1 i c p -> Bool Source #

(Eq (f p), Eq (g p)) => Eq ((f :+: g) p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: (f :+: g) p -> (f :+: g) p -> Bool Source #

(/=) :: (f :+: g) p -> (f :+: g) p -> Bool Source #

(Eq (f p), Eq (g p)) => Eq ((f :*: g) p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: (f :*: g) p -> (f :*: g) p -> Bool Source #

(/=) :: (f :*: g) p -> (f :*: g) p -> Bool Source #

(Eq a, Eq b, Eq c, Eq d) => Eq (a, b, c, d) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d) -> (a, b, c, d) -> Bool Source #

(/=) :: (a, b, c, d) -> (a, b, c, d) -> Bool Source #

Eq (a :~~: b) #

Since: base-4.10.0.0

Instance details

Defined in Data.Type.Equality

Methods

(==) :: (a :~~: b) -> (a :~~: b) -> Bool Source #

(/=) :: (a :~~: b) -> (a :~~: b) -> Bool Source #

(Eq1 f, Eq1 g, Eq a) => Eq (Sum f g a) #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Sum

Methods

(==) :: Sum f g a -> Sum f g a -> Bool Source #

(/=) :: Sum f g a -> Sum f g a -> Bool Source #

(Eq1 f, Eq1 g, Eq a) => Eq (Product f g a) #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

(==) :: Product f g a -> Product f g a -> Bool Source #

(/=) :: Product f g a -> Product f g a -> Bool Source #

Eq (f p) => Eq (M1 i c f p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: M1 i c f p -> M1 i c f p -> Bool Source #

(/=) :: M1 i c f p -> M1 i c f p -> Bool Source #

Eq (f (g p)) => Eq ((f :.: g) p) # 
Instance details

Defined in GHC.Generics

Methods

(==) :: (f :.: g) p -> (f :.: g) p -> Bool Source #

(/=) :: (f :.: g) p -> (f :.: g) p -> Bool Source #

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

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool Source #

(/=) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool Source #

(Eq1 f, Eq1 g, Eq a) => Eq (Compose f g a) #

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Compose

Methods

(==) :: Compose f g a -> Compose f g a -> Bool Source #

(/=) :: Compose f g a -> Compose f g a -> Bool Source #

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

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool Source #

(/=) :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Bool Source #

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

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Bool Source #

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

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i) => Eq (a, b, c, d, e, f, g, h, i) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j) => Eq (a, b, c, d, e, f, g, h, i, j) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k) => Eq (a, b, c, d, e, f, g, h, i, j, k) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l) => Eq (a, b, c, d, e, f, g, h, i, j, k, l) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l, Eq m) => Eq (a, b, c, d, e, f, g, h, i, j, k, l, m) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l, Eq m, Eq n) => Eq (a, b, c, d, e, f, g, h, i, j, k, l, m, n) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool Source #

(Eq a, Eq b, Eq c, Eq d, Eq e, Eq f, Eq g, Eq h, Eq i, Eq j, Eq k, Eq l, Eq m, Eq n, Eq o) => Eq (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) 
Instance details

Defined in GHC.Classes

Methods

(==) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool Source #

(/=) :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool Source #

class Eq a => Ord a where Source #

The Ord class is used for totally ordered datatypes.

Instances of Ord can be derived for any user-defined datatype whose constituent types are in Ord. The declared order of the constructors in the data declaration determines the ordering in derived Ord instances. The Ordering datatype allows a single comparison to determine the precise ordering of two objects.

Minimal complete definition: either compare or <=. Using compare can be more efficient for complex types.

Minimal complete definition

compare | (<=)

Methods

compare :: a -> a -> Ordering Source #

(<) :: a -> a -> Bool infix 4 Source #

(<=) :: a -> a -> Bool infix 4 Source #

(>) :: a -> a -> Bool infix 4 Source #

(>=) :: a -> a -> Bool infix 4 Source #

max :: a -> a -> a Source #

min :: a -> a -> a Source #

Instances
Ord Bool 
Instance details

Defined in GHC.Classes

Ord Char 
Instance details

Defined in GHC.Classes

Ord Double 
Instance details

Defined in GHC.Classes

Ord Float 
Instance details

Defined in GHC.Classes

Ord Int 
Instance details

Defined in GHC.Classes

Methods

compare :: Int -> Int -> Ordering Source #

(<) :: Int -> Int -> Bool Source #

(<=) :: Int -> Int -> Bool Source #

(>) :: Int -> Int -> Bool Source #

(>=) :: Int -> Int -> Bool Source #

max :: Int -> Int -> Int Source #

min :: Int -> Int -> Int Source #

Ord Int8 #

Since: base-2.1

Instance details

Defined in GHC.Int

Ord Int16 #

Since: base-2.1

Instance details

Defined in GHC.Int

Ord Int32 #

Since: base-2.1

Instance details

Defined in GHC.Int

Ord Int64 #

Since: base-2.1

Instance details

Defined in GHC.Int

Ord Integer 
Instance details

Defined in GHC.Integer.Type

Ord Natural # 
Instance details

Defined in GHC.Natural

Ord Ordering 
Instance details

Defined in GHC.Classes

Ord Word 
Instance details

Defined in GHC.Classes

Ord Word8 #

Since: base-2.1

Instance details

Defined in GHC.Word

Ord Word16 #

Since: base-2.1

Instance details

Defined in GHC.Word

Ord Word32 #

Since: base-2.1

Instance details

Defined in GHC.Word

Ord Word64 #

Since: base-2.1

Instance details

Defined in GHC.Word

Ord SomeTypeRep # 
Instance details

Defined in Data.Typeable.Internal

Ord () 
Instance details

Defined in GHC.Classes

Methods

compare :: () -> () -> Ordering Source #

(<) :: () -> () -> Bool Source #

(<=) :: () -> () -> Bool Source #

(>) :: () -> () -> Bool Source #

(>=) :: () -> () -> Bool Source #

max :: () -> () -> () Source #

min :: () -> () -> () Source #

Ord TyCon 
Instance details

Defined in GHC.Classes

Ord BigNat 
Instance details

Defined in GHC.Integer.Type

Ord GeneralCategory # 
Instance details

Defined in GHC.Unicode

Ord Fingerprint # 
Instance details

Defined in GHC.Fingerprint.Type

Ord IOMode # 
Instance details

Defined in GHC.IO.IOMode

Ord IntPtr # 
Instance details

Defined in Foreign.Ptr

Ord WordPtr # 
Instance details

Defined in Foreign.Ptr

Ord CUIntMax # 
Instance details

Defined in Foreign.C.Types

Ord CIntMax # 
Instance details

Defined in Foreign.C.Types

Ord CUIntPtr # 
Instance details

Defined in Foreign.C.Types

Ord CIntPtr # 
Instance details

Defined in Foreign.C.Types

Ord CSUSeconds # 
Instance details

Defined in Foreign.C.Types

Ord CUSeconds # 
Instance details

Defined in Foreign.C.Types

Ord CTime # 
Instance details

Defined in Foreign.C.Types

Ord CClock # 
Instance details

Defined in Foreign.C.Types

Ord CSigAtomic # 
Instance details

Defined in Foreign.C.Types

Ord CWchar # 
Instance details

Defined in Foreign.C.Types

Ord CSize # 
Instance details

Defined in Foreign.C.Types

Ord CPtrdiff # 
Instance details

Defined in Foreign.C.Types

Ord CDouble # 
Instance details

Defined in Foreign.C.Types

Ord CFloat # 
Instance details

Defined in Foreign.C.Types

Ord CBool # 
Instance details

Defined in Foreign.C.Types

Ord CULLong # 
Instance details

Defined in Foreign.C.Types

Ord CLLong # 
Instance details

Defined in Foreign.C.Types

Ord CULong # 
Instance details

Defined in Foreign.C.Types

Ord CLong # 
Instance details

Defined in Foreign.C.Types

Ord CUInt # 
Instance details

Defined in Foreign.C.Types

Ord CInt # 
Instance details

Defined in Foreign.C.Types

Ord CUShort # 
Instance details

Defined in Foreign.C.Types

Ord CShort # 
Instance details

Defined in Foreign.C.Types

Ord CUChar # 
Instance details

Defined in Foreign.C.Types

Ord CSChar # 
Instance details

Defined in Foreign.C.Types

Ord CChar # 
Instance details

Defined in Foreign.C.Types

Ord SomeNat #

Since: base-4.7.0.0

Instance details

Defined in GHC.TypeNats

Ord SomeSymbol #

Since: base-4.7.0.0

Instance details

Defined in GHC.TypeLits

Ord DecidedStrictness # 
Instance details

Defined in GHC.Generics

Ord SourceStrictness # 
Instance details

Defined in GHC.Generics

Ord SourceUnpackedness # 
Instance details

Defined in GHC.Generics

Ord Associativity # 
Instance details

Defined in GHC.Generics

Ord Fixity # 
Instance details

Defined in GHC.Generics

Ord Any # 
Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Any -> Any -> Ordering Source #

(<) :: Any -> Any -> Bool Source #

(<=) :: Any -> Any -> Bool Source #

(>) :: Any -> Any -> Bool Source #

(>=) :: Any -> Any -> Bool Source #

max :: Any -> Any -> Any Source #

min :: Any -> Any -> Any Source #

Ord All # 
Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: All -> All -> Ordering Source #

(<) :: All -> All -> Bool Source #

(<=) :: All -> All -> Bool Source #

(>) :: All -> All -> Bool Source #

(>=) :: All -> All -> Bool Source #

max :: All -> All -> All Source #

min :: All -> All -> All Source #

Ord ArithException # 
Instance details

Defined in GHC.Exception

Ord ErrorCall # 
Instance details

Defined in GHC.Exception

Ord SeekMode # 
Instance details

Defined in GHC.IO.Device

Ord NewlineMode # 
Instance details

Defined in GHC.IO.Handle.Types

Ord Newline # 
Instance details

Defined in GHC.IO.Handle.Types

Ord BufferMode # 
Instance details

Defined in GHC.IO.Handle.Types

Ord ExitCode # 
Instance details

Defined in GHC.IO.Exception

Ord ArrayException # 
Instance details

Defined in GHC.IO.Exception

Ord AsyncException # 
Instance details

Defined in GHC.IO.Exception

Ord Fd # 
Instance details

Defined in System.Posix.Types

Methods

compare :: Fd -> Fd -> Ordering Source #

(<) :: Fd -> Fd -> Bool Source #

(<=) :: Fd -> Fd -> Bool Source #

(>) :: Fd -> Fd -> Bool Source #

(>=) :: Fd -> Fd -> Bool Source #

max :: Fd -> Fd -> Fd Source #

min :: Fd -> Fd -> Fd Source #

Ord CTimer # 
Instance details

Defined in System.Posix.Types

Ord CKey # 
Instance details

Defined in System.Posix.Types

Ord CId # 
Instance details

Defined in System.Posix.Types

Methods

compare :: CId -> CId -> Ordering Source #

(<) :: CId -> CId -> Bool Source #

(<=) :: CId -> CId -> Bool Source #

(>) :: CId -> CId -> Bool Source #

(>=) :: CId -> CId -> Bool Source #

max :: CId -> CId -> CId Source #

min :: CId -> CId -> CId Source #

Ord CFsFilCnt # 
Instance details

Defined in System.Posix.Types

Ord CFsBlkCnt # 
Instance details

Defined in System.Posix.Types

Ord CClockId # 
Instance details

Defined in System.Posix.Types

Ord CBlkCnt # 
Instance details

Defined in System.Posix.Types

Ord CBlkSize # 
Instance details

Defined in System.Posix.Types

Ord CRLim # 
Instance details

Defined in System.Posix.Types

Ord CTcflag # 
Instance details

Defined in System.Posix.Types

Ord CSpeed # 
Instance details

Defined in System.Posix.Types

Ord CCc # 
Instance details

Defined in System.Posix.Types

Methods

compare :: CCc -> CCc -> Ordering Source #

(<) :: CCc -> CCc -> Bool Source #

(<=) :: CCc -> CCc -> Bool Source #

(>) :: CCc -> CCc -> Bool Source #

(>=) :: CCc -> CCc -> Bool Source #

max :: CCc -> CCc -> CCc Source #

min :: CCc -> CCc -> CCc Source #

Ord CUid # 
Instance details

Defined in System.Posix.Types

Ord CNlink # 
Instance details

Defined in System.Posix.Types

Ord CGid # 
Instance details

Defined in System.Posix.Types

Ord CSsize # 
Instance details

Defined in System.Posix.Types

Ord CPid # 
Instance details

Defined in System.Posix.Types

Ord COff # 
Instance details

Defined in System.Posix.Types

Ord CMode # 
Instance details

Defined in System.Posix.Types

Ord CIno # 
Instance details

Defined in System.Posix.Types

Ord CDev # 
Instance details

Defined in System.Posix.Types

Ord ThreadStatus # 
Instance details

Defined in GHC.Conc.Sync

Ord BlockReason # 
Instance details

Defined in GHC.Conc.Sync

Ord ThreadId #

Since: base-4.2.0.0

Instance details

Defined in GHC.Conc.Sync

Ord Version #

Since: base-2.1

Instance details

Defined in Data.Version

Ord ByteOrder # 
Instance details

Defined in GHC.ByteOrder

Ord Unique # 
Instance details

Defined in Data.Unique

Ord Void #

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Ord a => Ord [a] 
Instance details

Defined in GHC.Classes

Methods

compare :: [a] -> [a] -> Ordering Source #

(<) :: [a] -> [a] -> Bool Source #

(<=) :: [a] -> [a] -> Bool Source #

(>) :: [a] -> [a] -> Bool Source #

(>=) :: [a] -> [a] -> Bool Source #

max :: [a] -> [a] -> [a] Source #

min :: [a] -> [a] -> [a] Source #

Ord a => Ord (Maybe a) # 
Instance details

Defined in GHC.Base

Methods

compare :: Maybe a -> Maybe a -> Ordering Source #

(<) :: Maybe a -> Maybe a -> Bool Source #

(<=) :: Maybe a -> Maybe a -> Bool Source #

(>) :: Maybe a -> Maybe a -> Bool Source #

(>=) :: Maybe a -> Maybe a -> Bool Source #

max :: Maybe a -> Maybe a -> Maybe a Source #

min :: Maybe a -> Maybe a -> Maybe a Source #

Integral a => Ord (Ratio a) #

Since: base-2.0.1

Instance details

Defined in GHC.Real

Methods

compare :: Ratio a -> Ratio a -> Ordering Source #

(<) :: Ratio a -> Ratio a -> Bool Source #

(<=) :: Ratio a -> Ratio a -> Bool Source #

(>) :: Ratio a -> Ratio a -> Bool Source #

(>=) :: Ratio a -> Ratio a -> Bool Source #

max :: Ratio a -> Ratio a -> Ratio a Source #

min :: Ratio a -> Ratio a -> Ratio a Source #

Ord (Ptr a) # 
Instance details

Defined in GHC.Ptr

Methods

compare :: Ptr a -> Ptr a -> Ordering Source #

(<) :: Ptr a -> Ptr a -> Bool Source #

(<=) :: Ptr a -> Ptr a -> Bool Source #

(>) :: Ptr a -> Ptr a -> Bool Source #

(>=) :: Ptr a -> Ptr a -> Bool Source #

max :: Ptr a -> Ptr a -> Ptr a Source #

min :: Ptr a -> Ptr a -> Ptr a Source #

Ord (FunPtr a) # 
Instance details

Defined in GHC.Ptr

Methods

compare :: FunPtr a -> FunPtr a -> Ordering Source #

(<) :: FunPtr a -> FunPtr a -> Bool Source #

(<=) :: FunPtr a -> FunPtr a -> Bool Source #

(>) :: FunPtr a -> FunPtr a -> Bool Source #

(>=) :: FunPtr a -> FunPtr a -> Bool Source #

max :: FunPtr a -> FunPtr a -> FunPtr a Source #

min :: FunPtr a -> FunPtr a -> FunPtr a Source #

Ord p => Ord (Par1 p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: Par1 p -> Par1 p -> Ordering Source #

(<) :: Par1 p -> Par1 p -> Bool Source #

(<=) :: Par1 p -> Par1 p -> Bool Source #

(>) :: Par1 p -> Par1 p -> Bool Source #

(>=) :: Par1 p -> Par1 p -> Bool Source #

max :: Par1 p -> Par1 p -> Par1 p Source #

min :: Par1 p -> Par1 p -> Par1 p Source #

Ord a => Ord (NonEmpty a) # 
Instance details

Defined in GHC.Base

Ord a => Ord (Down a) #

Since: base-4.6.0.0

Instance details

Defined in Data.Ord

Methods

compare :: Down a -> Down a -> Ordering Source #

(<) :: Down a -> Down a -> Bool Source #

(<=) :: Down a -> Down a -> Bool Source #

(>) :: Down a -> Down a -> Bool Source #

(>=) :: Down a -> Down a -> Bool Source #

max :: Down a -> Down a -> Down a Source #

min :: Down a -> Down a -> Down a Source #

Ord a => Ord (Product a) # 
Instance details

Defined in Data.Semigroup.Internal

Ord a => Ord (Sum a) # 
Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Sum a -> Sum a -> Ordering Source #

(<) :: Sum a -> Sum a -> Bool Source #

(<=) :: Sum a -> Sum a -> Bool Source #

(>) :: Sum a -> Sum a -> Bool Source #

(>=) :: Sum a -> Sum a -> Bool Source #

max :: Sum a -> Sum a -> Sum a Source #

min :: Sum a -> Sum a -> Sum a Source #

Ord a => Ord (Dual a) # 
Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Dual a -> Dual a -> Ordering Source #

(<) :: Dual a -> Dual a -> Bool Source #

(<=) :: Dual a -> Dual a -> Bool Source #

(>) :: Dual a -> Dual a -> Bool Source #

(>=) :: Dual a -> Dual a -> Bool Source #

max :: Dual a -> Dual a -> Dual a Source #

min :: Dual a -> Dual a -> Dual a Source #

Ord a => Ord (Last a) # 
Instance details

Defined in Data.Monoid

Methods

compare :: Last a -> Last a -> Ordering Source #

(<) :: Last a -> Last a -> Bool Source #

(<=) :: Last a -> Last a -> Bool Source #

(>) :: Last a -> Last a -> Bool Source #

(>=) :: Last a -> Last a -> Bool Source #

max :: Last a -> Last a -> Last a Source #

min :: Last a -> Last a -> Last a Source #

Ord a => Ord (First a) # 
Instance details

Defined in Data.Monoid

Methods

compare :: First a -> First a -> Ordering Source #

(<) :: First a -> First a -> Bool Source #

(<=) :: First a -> First a -> Bool Source #

(>) :: First a -> First a -> Bool Source #

(>=) :: First a -> First a -> Bool Source #

max :: First a -> First a -> First a Source #

min :: First a -> First a -> First a Source #

Ord (ForeignPtr a) #

Since: base-2.1

Instance details

Defined in GHC.ForeignPtr

Ord a => Ord (Identity a) # 
Instance details

Defined in Data.Functor.Identity

Ord a => Ord (ZipList a) # 
Instance details

Defined in Control.Applicative

Ord a => Ord (Option a) # 
Instance details

Defined in Data.Semigroup

Methods

compare :: Option a -> Option a -> Ordering Source #

(<) :: Option a -> Option a -> Bool Source #

(<=) :: Option a -> Option a -> Bool Source #

(>) :: Option a -> Option a -> Bool Source #

(>=) :: Option a -> Option a -> Bool Source #

max :: Option a -> Option a -> Option a Source #

min :: Option a -> Option a -> Option a Source #

Ord m => Ord (WrappedMonoid m) # 
Instance details

Defined in Data.Semigroup

Ord a => Ord (Last a) # 
Instance details

Defined in Data.Semigroup

Methods

compare :: Last a -> Last a -> Ordering Source #

(<) :: Last a -> Last a -> Bool Source #

(<=) :: Last a -> Last a -> Bool Source #

(>) :: Last a -> Last a -> Bool Source #

(>=) :: Last a -> Last a -> Bool Source #

max :: Last a -> Last a -> Last a Source #

min :: Last a -> Last a -> Last a Source #

Ord a => Ord (First a) # 
Instance details

Defined in Data.Semigroup

Methods

compare :: First a -> First a -> Ordering Source #

(<) :: First a -> First a -> Bool Source #

(<=) :: First a -> First a -> Bool Source #

(>) :: First a -> First a -> Bool Source #

(>=) :: First a -> First a -> Bool Source #

max :: First a -> First a -> First a Source #

min :: First a -> First a -> First a Source #

Ord a => Ord (Max a) # 
Instance details

Defined in Data.Semigroup

Methods

compare :: Max a -> Max a -> Ordering Source #

(<) :: Max a -> Max a -> Bool Source #

(<=) :: Max a -> Max a -> Bool Source #

(>) :: Max a -> Max a -> Bool Source #

(>=) :: Max a -> Max a -> Bool Source #

max :: Max a -> Max a -> Max a Source #

min :: Max a -> Max a -> Max a Source #

Ord a => Ord (Min a) # 
Instance details

Defined in Data.Semigroup

Methods

compare :: Min a -> Min a -> Ordering Source #

(<) :: Min a -> Min a -> Bool Source #

(<=) :: Min a -> Min a -> Bool Source #

(>) :: Min a -> Min a -> Bool Source #

(>=) :: Min a -> Min a -> Bool Source #

max :: Min a -> Min a -> Min a Source #

min :: Min a -> Min a -> Min a Source #

Ord (Fixed a) # 
Instance details

Defined in Data.Fixed

Methods

compare :: Fixed a -> Fixed a -> Ordering Source #

(<) :: Fixed a -> Fixed a -> Bool Source #

(<=) :: Fixed a -> Fixed a -> Bool Source #

(>) :: Fixed a -> Fixed a -> Bool Source #

(>=) :: Fixed a -> Fixed a -> Bool Source #

max :: Fixed a -> Fixed a -> Fixed a Source #

min :: Fixed a -> Fixed a -> Fixed a Source #

(Ord a, Ord b) => Ord (Either a b) # 
Instance details

Defined in Data.Either

Methods

compare :: Either a b -> Either a b -> Ordering Source #

(<) :: Either a b -> Either a b -> Bool Source #

(<=) :: Either a b -> Either a b -> Bool Source #

(>) :: Either a b -> Either a b -> Bool Source #

(>=) :: Either a b -> Either a b -> Bool Source #

max :: Either a b -> Either a b -> Either a b Source #

min :: Either a b -> Either a b -> Either a b Source #

Ord (V1 p) #

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

compare :: V1 p -> V1 p -> Ordering Source #

(<) :: V1 p -> V1 p -> Bool Source #

(<=) :: V1 p -> V1 p -> Bool Source #

(>) :: V1 p -> V1 p -> Bool Source #

(>=) :: V1 p -> V1 p -> Bool Source #

max :: V1 p -> V1 p -> V1 p Source #

min :: V1 p -> V1 p -> V1 p Source #

Ord (U1 p) #

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

compare :: U1 p -> U1 p -> Ordering Source #

(<) :: U1 p -> U1 p -> Bool Source #

(<=) :: U1 p -> U1 p -> Bool Source #

(>) :: U1 p -> U1 p -> Bool Source #

(>=) :: U1 p -> U1 p -> Bool Source #

max :: U1 p -> U1 p -> U1 p Source #

min :: U1 p -> U1 p -> U1 p Source #

Ord (TypeRep a) #

Since: base-4.4.0.0

Instance details

Defined in Data.Typeable.Internal

(Ord a, Ord b) => Ord (a, b) 
Instance details

Defined in GHC.Classes

Methods

compare :: (a, b) -> (a, b) -> Ordering Source #

(<) :: (a, b) -> (a, b) -> Bool Source #

(<=) :: (a, b) -> (a, b) -> Bool Source #

(>) :: (a, b) -> (a, b) -> Bool Source #

(>=) :: (a, b) -> (a, b) -> Bool Source #

max :: (a, b) -> (a, b) -> (a, b) Source #

min :: (a, b) -> (a, b) -> (a, b) Source #

Ord (Proxy s) #

Since: base-4.7.0.0

Instance details

Defined in Data.Proxy

Methods

compare :: Proxy s -> Proxy s -> Ordering Source #

(<) :: Proxy s -> Proxy s -> Bool Source #

(<=) :: Proxy s -> Proxy s -> Bool Source #

(>) :: Proxy s -> Proxy s -> Bool Source #

(>=) :: Proxy s -> Proxy s -> Bool Source #

max :: Proxy s -> Proxy s -> Proxy s Source #

min :: Proxy s -> Proxy s -> Proxy s Source #

Ord a => Ord (Arg a b) #

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: Arg a b -> Arg a b -> Ordering Source #

(<) :: Arg a b -> Arg a b -> Bool Source #

(<=) :: Arg a b -> Arg a b -> Bool Source #

(>) :: Arg a b -> Arg a b -> Bool Source #

(>=) :: Arg a b -> Arg a b -> Bool Source #

max :: Arg a b -> Arg a b -> Arg a b Source #

min :: Arg a b -> Arg a b -> Arg a b Source #

Ord (f p) => Ord (Rec1 f p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: Rec1 f p -> Rec1 f p -> Ordering Source #

(<) :: Rec1 f p -> Rec1 f p -> Bool Source #

(<=) :: Rec1 f p -> Rec1 f p -> Bool Source #

(>) :: Rec1 f p -> Rec1 f p -> Bool Source #

(>=) :: Rec1 f p -> Rec1 f p -> Bool Source #

max :: Rec1 f p -> Rec1 f p -> Rec1 f p Source #

min :: Rec1 f p -> Rec1 f p -> Rec1 f p Source #

Ord (URec Word p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: URec Word p -> URec Word p -> Ordering Source #

(<) :: URec Word p -> URec Word p -> Bool Source #

(<=) :: URec Word p -> URec Word p -> Bool Source #

(>) :: URec Word p -> URec Word p -> Bool Source #

(>=) :: URec Word p -> URec Word p -> Bool Source #

max :: URec Word p -> URec Word p -> URec Word p Source #

min :: URec Word p -> URec Word p -> URec Word p Source #

Ord (URec Int p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: URec Int p -> URec Int p -> Ordering Source #

(<) :: URec Int p -> URec Int p -> Bool Source #

(<=) :: URec Int p -> URec Int p -> Bool Source #

(>) :: URec Int p -> URec Int p -> Bool Source #

(>=) :: URec Int p -> URec Int p -> Bool Source #

max :: URec Int p -> URec Int p -> URec Int p Source #

min :: URec Int p -> URec Int p -> URec Int p Source #

Ord (URec Float p) # 
Instance details

Defined in GHC.Generics

Ord (URec Double p) # 
Instance details

Defined in GHC.Generics

Ord (URec Char p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: URec Char p -> URec Char p -> Ordering Source #

(<) :: URec Char p -> URec Char p -> Bool Source #

(<=) :: URec Char p -> URec Char p -> Bool Source #

(>) :: URec Char p -> URec Char p -> Bool Source #

(>=) :: URec Char p -> URec Char p -> Bool Source #

max :: URec Char p -> URec Char p -> URec Char p Source #

min :: URec Char p -> URec Char p -> URec Char p Source #

Ord (URec (Ptr ()) p) # 
Instance details

Defined in GHC.Generics

Methods

compare :: URec (Ptr ()) p -> URec (Ptr ()) p -> Ordering Source #

(<) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool Source #

(<=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool Source #

(>) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool Source #

(>=) :: URec (Ptr ()) p -> URec (Ptr ()) p -> Bool Source #

max :: URec (Ptr ()) p -> URec (Ptr ()) p -> URec (Ptr ()) p Source #

min :: URec (Ptr ()) p -> URec (Ptr ()) p -> URec (Ptr ()) p Source #

(Ord a, Ord b, Ord c) => Ord (a, b, c) 
Instance details

Defined in GHC.Classes

Methods

compare :: (a, b, c) -> (a, b, c) -> Ordering Source #

(<) :: (a, b, c) -> (a, b, c) -> Bool Source #

(<=) :: (a, b, c) -&