Copyright | (c) The University of Glasgow 2005 |
---|---|
License | BSD-style (see the file libraries/base/LICENSE) |
Maintainer | [email protected] |
Stability | stable |
Portability | portable |
Safe Haskell | Trustworthy |
Language | Haskell2010 |
Orderings
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.
The Haskell Report defines no laws for Ord
. However, <=
is customarily expected to implement a non-strict partial order and have the following properties:
x <= y && y <= z
= True
, then x <= z
= True
x <= x
= True
x <= y && y <= x
= True
, then x == y
= True
Note that the following operator interactions are expected to hold:
x >= y
= y <= x
x < y
= x <= y && x /= y
x > y
= y < x
x < y
= compare x y == LT
x > y
= compare x y == GT
x == y
= compare x y == EQ
min x y == if x <= y then x else y
= True
max x y == if x >= y then x else y
= True
Minimal complete definition: either compare
or <=
. Using compare
can be more efficient for complex types.
compare :: a -> a -> Ordering Source
(<) :: a -> a -> Bool infix 4 Source
(<=) :: a -> a -> Bool infix 4 Source
(>) :: a -> a -> Bool infix 4 Source
Ord Bool | |
Ord Char | |
Ord Double |
Note that due to the presence of >>> 0/0 <= (0/0 :: Double) False Also note that, due to the same, >>> (0/0 :: Double) > 1 False >>> compare (0/0 :: Double) 1 GT |
Defined in GHC.Classes | |
Ord Float |
Note that due to the presence of >>> 0/0 <= (0/0 :: Float) False Also note that, due to the same, >>> (0/0 :: Float) > 1 False >>> compare (0/0 :: Float) 1 GT |
Defined in GHC.Classes | |
Ord Int | |
Ord Int8 | Since: base-2.1 |
Ord Int16 | Since: base-2.1 |
Ord Int32 | Since: base-2.1 |
Ord Int64 | Since: base-2.1 |
Ord Integer | |
Ord Natural | Since: base-4.8.0.0 |
Ord Ordering | |
Defined in GHC.Classes | |
Ord Word | |
Ord Word8 | Since: base-2.1 |
Ord Word16 | Since: base-2.1 |
Defined in GHC.Word | |
Ord Word32 | Since: base-2.1 |
Defined in GHC.Word | |
Ord Word64 | Since: base-2.1 |
Defined in GHC.Word | |
Ord SomeTypeRep | |
Defined in Data.Typeable.Internal Methodscompare :: SomeTypeRep -> SomeTypeRep -> Ordering Source (<) :: SomeTypeRep -> SomeTypeRep -> Bool Source (<=) :: SomeTypeRep -> SomeTypeRep -> Bool Source (>) :: SomeTypeRep -> SomeTypeRep -> Bool Source (>=) :: SomeTypeRep -> SomeTypeRep -> Bool Source max :: SomeTypeRep -> SomeTypeRep -> SomeTypeRep Source min :: SomeTypeRep -> SomeTypeRep -> SomeTypeRep Source | |
Ord () | |
Ord TyCon | |
Defined in GHC.Classes | |
Ord BigNat | |
Defined in GHC.Integer.Type | |
Ord GeneralCategory | Since: base-2.1 |
Defined in GHC.Unicode Methodscompare :: GeneralCategory -> GeneralCategory -> Ordering Source (<) :: GeneralCategory -> GeneralCategory -> Bool Source (<=) :: GeneralCategory -> GeneralCategory -> Bool Source (>) :: GeneralCategory -> GeneralCategory -> Bool Source (>=) :: GeneralCategory -> GeneralCategory -> Bool Source max :: GeneralCategory -> GeneralCategory -> GeneralCategory Source min :: GeneralCategory -> GeneralCategory -> GeneralCategory Source | |
Ord Fingerprint | Since: base-4.4.0.0 |
Defined in GHC.Fingerprint.Type Methodscompare :: Fingerprint -> Fingerprint -> Ordering Source (<) :: Fingerprint -> Fingerprint -> Bool Source (<=) :: Fingerprint -> Fingerprint -> Bool Source (>) :: Fingerprint -> Fingerprint -> Bool Source (>=) :: Fingerprint -> Fingerprint -> Bool Source max :: Fingerprint -> Fingerprint -> Fingerprint Source min :: Fingerprint -> Fingerprint -> Fingerprint Source | |
Ord IOMode | Since: base-4.2.0.0 |
Defined in GHC.IO.IOMode | |
Ord IntPtr | |
Defined in Foreign.Ptr | |
Ord WordPtr | |
Ord CUIntMax | |
Defined in Foreign.C.Types | |
Ord CIntMax | |
Ord CUIntPtr | |
Defined in Foreign.C.Types | |
Ord CIntPtr | |
Ord CSUSeconds | |
Defined in Foreign.C.Types Methodscompare :: CSUSeconds -> CSUSeconds -> Ordering Source (<) :: CSUSeconds -> CSUSeconds -> Bool Source (<=) :: CSUSeconds -> CSUSeconds -> Bool Source (>) :: CSUSeconds -> CSUSeconds -> Bool Source (>=) :: CSUSeconds -> CSUSeconds -> Bool Source max :: CSUSeconds -> CSUSeconds -> CSUSeconds Source min :: CSUSeconds -> CSUSeconds -> CSUSeconds Source | |
Ord CUSeconds | |
Defined in Foreign.C.Types | |
Ord CTime | |
Defined in Foreign.C.Types | |
Ord CClock | |
Defined in Foreign.C.Types | |
Ord CSigAtomic | |
Defined in Foreign.C.Types Methodscompare :: CSigAtomic -> CSigAtomic -> Ordering Source (<) :: CSigAtomic -> CSigAtomic -> Bool Source (<=) :: CSigAtomic -> CSigAtomic -> Bool Source (>) :: CSigAtomic -> CSigAtomic -> Bool Source (>=) :: CSigAtomic -> CSigAtomic -> Bool Source max :: CSigAtomic -> CSigAtomic -> CSigAtomic Source min :: CSigAtomic -> CSigAtomic -> CSigAtomic Source | |
Ord CWchar | |
Defined in Foreign.C.Types | |
Ord CSize | |
Defined in Foreign.C.Types | |
Ord CPtrdiff | |
Defined in Foreign.C.Types | |
Ord CDouble | |
Ord CFloat | |
Defined in Foreign.C.Types | |
Ord CBool | |
Defined in Foreign.C.Types | |
Ord CULLong | |
Ord CLLong | |
Defined in Foreign.C.Types | |
Ord CULong | |
Defined in Foreign.C.Types | |
Ord CLong | |
Defined in Foreign.C.Types | |
Ord CUInt | |
Defined in Foreign.C.Types | |
Ord CInt | |
Ord CUShort | |
Ord CShort | |
Defined in Foreign.C.Types | |
Ord CUChar | |
Defined in Foreign.C.Types | |
Ord CSChar | |
Defined in Foreign.C.Types | |
Ord CChar | |
Defined in Foreign.C.Types | |
Ord SomeNat | Since: base-4.7.0.0 |
Ord SomeSymbol | Since: base-4.7.0.0 |
Defined in GHC.TypeLits Methodscompare :: SomeSymbol -> SomeSymbol -> Ordering Source (<) :: SomeSymbol -> SomeSymbol -> Bool Source (<=) :: SomeSymbol -> SomeSymbol -> Bool Source (>) :: SomeSymbol -> SomeSymbol -> Bool Source (>=) :: SomeSymbol -> SomeSymbol -> Bool Source max :: SomeSymbol -> SomeSymbol -> SomeSymbol Source min :: SomeSymbol -> SomeSymbol -> SomeSymbol Source | |
Ord DecidedStrictness | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: DecidedStrictness -> DecidedStrictness -> Ordering Source (<) :: DecidedStrictness -> DecidedStrictness -> Bool Source (<=) :: DecidedStrictness -> DecidedStrictness -> Bool Source (>) :: DecidedStrictness -> DecidedStrictness -> Bool Source (>=) :: DecidedStrictness -> DecidedStrictness -> Bool Source max :: DecidedStrictness -> DecidedStrictness -> DecidedStrictness Source min :: DecidedStrictness -> DecidedStrictness -> DecidedStrictness Source | |
Ord SourceStrictness | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: SourceStrictness -> SourceStrictness -> Ordering Source (<) :: SourceStrictness -> SourceStrictness -> Bool Source (<=) :: SourceStrictness -> SourceStrictness -> Bool Source (>) :: SourceStrictness -> SourceStrictness -> Bool Source (>=) :: SourceStrictness -> SourceStrictness -> Bool Source max :: SourceStrictness -> SourceStrictness -> SourceStrictness Source min :: SourceStrictness -> SourceStrictness -> SourceStrictness Source | |
Ord SourceUnpackedness | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: SourceUnpackedness -> SourceUnpackedness -> Ordering Source (<) :: SourceUnpackedness -> SourceUnpackedness -> Bool Source (<=) :: SourceUnpackedness -> SourceUnpackedness -> Bool Source (>) :: SourceUnpackedness -> SourceUnpackedness -> Bool Source (>=) :: SourceUnpackedness -> SourceUnpackedness -> Bool Source max :: SourceUnpackedness -> SourceUnpackedness -> SourceUnpackedness Source min :: SourceUnpackedness -> SourceUnpackedness -> SourceUnpackedness Source | |
Ord Associativity | Since: base-4.6.0.0 |
Defined in GHC.Generics Methodscompare :: Associativity -> Associativity -> Ordering Source (<) :: Associativity -> Associativity -> Bool Source (<=) :: Associativity -> Associativity -> Bool Source (>) :: Associativity -> Associativity -> Bool Source (>=) :: Associativity -> Associativity -> Bool Source max :: Associativity -> Associativity -> Associativity Source min :: Associativity -> Associativity -> Associativity Source | |
Ord Fixity | Since: base-4.6.0.0 |
Defined in GHC.Generics | |
Ord Any | Since: base-2.1 |
Ord All | Since: base-2.1 |
Ord ArithException | Since: base-3.0 |
Defined in GHC.Exception.Type Methodscompare :: ArithException -> ArithException -> Ordering Source (<) :: ArithException -> ArithException -> Bool Source (<=) :: ArithException -> ArithException -> Bool Source (>) :: ArithException -> ArithException -> Bool Source (>=) :: ArithException -> ArithException -> Bool Source max :: ArithException -> ArithException -> ArithException Source min :: ArithException -> ArithException -> ArithException Source | |
Ord ErrorCall | Since: base-4.7.0.0 |
Defined in GHC.Exception | |
Ord SeekMode | Since: base-4.2.0.0 |
Defined in GHC.IO.Device | |
Ord NewlineMode | Since: base-4.3.0.0 |
Defined in GHC.IO.Handle.Types Methodscompare :: NewlineMode -> NewlineMode -> Ordering Source (<) :: NewlineMode -> NewlineMode -> Bool Source (<=) :: NewlineMode -> NewlineMode -> Bool Source (>) :: NewlineMode -> NewlineMode -> Bool Source (>=) :: NewlineMode -> NewlineMode -> Bool Source max :: NewlineMode -> NewlineMode -> NewlineMode Source min :: NewlineMode -> NewlineMode -> NewlineMode Source | |
Ord Newline | Since: base-4.3.0.0 |
Ord BufferMode | Since: base-4.2.0.0 |
Defined in GHC.IO.Handle.Types Methodscompare :: BufferMode -> BufferMode -> Ordering Source (<) :: BufferMode -> BufferMode -> Bool Source (<=) :: BufferMode -> BufferMode -> Bool Source (>) :: BufferMode -> BufferMode -> Bool Source (>=) :: BufferMode -> BufferMode -> Bool Source max :: BufferMode -> BufferMode -> BufferMode Source min :: BufferMode -> BufferMode -> BufferMode Source | |
Ord ExitCode | |
Defined in GHC.IO.Exception | |
Ord ArrayException | Since: base-4.2.0.0 |
Defined in GHC.IO.Exception Methodscompare :: ArrayException -> ArrayException -> Ordering Source (<) :: ArrayException -> ArrayException -> Bool Source (<=) :: ArrayException -> ArrayException -> Bool Source (>) :: ArrayException -> ArrayException -> Bool Source (>=) :: ArrayException -> ArrayException -> Bool Source max :: ArrayException -> ArrayException -> ArrayException Source min :: ArrayException -> ArrayException -> ArrayException Source | |
Ord AsyncException | Since: base-4.2.0.0 |
Defined in GHC.IO.Exception Methodscompare :: AsyncException -> AsyncException -> Ordering Source (<) :: AsyncException -> AsyncException -> Bool Source (<=) :: AsyncException -> AsyncException -> Bool Source (>) :: AsyncException -> AsyncException -> Bool Source (>=) :: AsyncException -> AsyncException -> Bool Source max :: AsyncException -> AsyncException -> AsyncException Source min :: AsyncException -> AsyncException -> AsyncException Source | |
Ord Fd | |
Ord CTimer | |
Defined in System.Posix.Types | |
Ord CKey | |
Ord CId | |
Ord CFsFilCnt | |
Defined in System.Posix.Types | |
Ord CFsBlkCnt | |
Defined in System.Posix.Types | |
Ord CClockId | |
Defined in System.Posix.Types | |
Ord CBlkCnt | |
Ord CBlkSize | |
Defined in System.Posix.Types | |
Ord CRLim | |
Defined in System.Posix.Types | |
Ord CTcflag | |
Ord CSpeed | |
Defined in System.Posix.Types | |
Ord CCc | |
Ord CUid | |
Ord CNlink | |
Defined in System.Posix.Types | |
Ord CGid | |
Ord CSsize | |
Defined in System.Posix.Types | |
Ord CPid | |
Ord COff | |
Ord CMode | |
Defined in System.Posix.Types | |
Ord CIno | |
Ord CDev | |
Ord ThreadStatus | Since: base-4.3.0.0 |
Defined in GHC.Conc.Sync Methodscompare :: ThreadStatus -> ThreadStatus -> Ordering Source (<) :: ThreadStatus -> ThreadStatus -> Bool Source (<=) :: ThreadStatus -> ThreadStatus -> Bool Source (>) :: ThreadStatus -> ThreadStatus -> Bool Source (>=) :: ThreadStatus -> ThreadStatus -> Bool Source max :: ThreadStatus -> ThreadStatus -> ThreadStatus Source min :: ThreadStatus -> ThreadStatus -> ThreadStatus Source | |
Ord BlockReason | Since: base-4.3.0.0 |
Defined in GHC.Conc.Sync Methodscompare :: BlockReason -> BlockReason -> Ordering Source (<) :: BlockReason -> BlockReason -> Bool Source (<=) :: BlockReason -> BlockReason -> Bool Source (>) :: BlockReason -> BlockReason -> Bool Source (>=) :: BlockReason -> BlockReason -> Bool Source max :: BlockReason -> BlockReason -> BlockReason Source min :: BlockReason -> BlockReason -> BlockReason Source | |
Ord ThreadId | Since: base-4.2.0.0 |
Defined in GHC.Conc.Sync | |
Ord Version | Since: base-2.1 |
Ord ByteOrder | Since: base-4.11.0.0 |
Defined in GHC.ByteOrder | |
Ord Unique | |
Defined in Data.Unique | |
Ord Void | Since: base-4.8.0.0 |
Ord a => Ord [a] | |
Ord a => Ord (Maybe a) | Since: base-2.1 |
Integral a => Ord (Ratio a) | Since: base-2.0.1 |
Ord (Ptr a) | Since: base-2.1 |
Ord (FunPtr a) | |
Ord p => Ord (Par1 p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
Ord a => Ord (NonEmpty a) | Since: base-4.9.0.0 |
Defined in GHC.Base Methodscompare :: NonEmpty a -> NonEmpty a -> Ordering Source (<) :: NonEmpty a -> NonEmpty a -> Bool Source (<=) :: NonEmpty a -> NonEmpty a -> Bool Source (>) :: NonEmpty a -> NonEmpty a -> Bool Source (>=) :: NonEmpty a -> NonEmpty a -> Bool Source | |
Ord a => Ord (Down a) | Since: base-4.6.0.0 |
Defined in Data.Ord | |
Ord a => Ord (Product a) | Since: base-2.1 |
Defined in Data.Semigroup.Internal | |
Ord a => Ord (Sum a) | Since: base-2.1 |
Defined in Data.Semigroup.Internal | |
Ord a => Ord (Dual a) | Since: base-2.1 |
Defined in Data.Semigroup.Internal | |
Ord a => Ord (Last a) | Since: base-2.1 |
Defined in Data.Monoid | |
Ord a => Ord (First a) | Since: base-2.1 |
Ord (ForeignPtr a) | Since: base-2.1 |
Defined in GHC.ForeignPtr Methodscompare :: ForeignPtr a -> ForeignPtr a -> Ordering Source (<) :: ForeignPtr a -> ForeignPtr a -> Bool Source (<=) :: ForeignPtr a -> ForeignPtr a -> Bool Source (>) :: ForeignPtr a -> ForeignPtr a -> Bool Source (>=) :: ForeignPtr a -> ForeignPtr a -> Bool Source max :: ForeignPtr a -> ForeignPtr a -> ForeignPtr a Source min :: ForeignPtr a -> ForeignPtr a -> ForeignPtr a Source | |
Ord a => Ord (Identity a) | Since: base-4.8.0.0 |
Defined in Data.Functor.Identity Methodscompare :: Identity a -> Identity a -> Ordering Source (<) :: Identity a -> Identity a -> Bool Source (<=) :: Identity a -> Identity a -> Bool Source (>) :: Identity a -> Identity a -> Bool Source (>=) :: Identity a -> Identity a -> Bool Source | |
Ord a => Ord (ZipList a) | Since: base-4.7.0.0 |
Defined in Control.Applicative | |
Ord a => Ord (Option a) | Since: base-4.9.0.0 |
Defined in Data.Semigroup | |
Ord m => Ord (WrappedMonoid m) | Since: base-4.9.0.0 |
Defined in Data.Semigroup Methodscompare :: WrappedMonoid m -> WrappedMonoid m -> Ordering Source (<) :: WrappedMonoid m -> WrappedMonoid m -> Bool Source (<=) :: WrappedMonoid m -> WrappedMonoid m -> Bool Source (>) :: WrappedMonoid m -> WrappedMonoid m -> Bool Source (>=) :: WrappedMonoid m -> WrappedMonoid m -> Bool Source max :: WrappedMonoid m -> WrappedMonoid m -> WrappedMonoid m Source min :: WrappedMonoid m -> WrappedMonoid m -> WrappedMonoid m Source | |
Ord a => Ord (Last a) | Since: base-4.9.0.0 |
Defined in Data.Semigroup | |
Ord a => Ord (First a) | Since: base-4.9.0.0 |
Ord a => Ord (Max a) | Since: base-4.9.0.0 |
Defined in Data.Semigroup | |
Ord a => Ord (Min a) | Since: base-4.9.0.0 |
Defined in Data.Semigroup | |
Ord (Fixed a) | Since: base-2.1 |
(Ord a, Ord b) => Ord (Either a b) | Since: base-2.1 |
Defined in Data.Either Methodscompare :: 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 | |
Ord (V1 p) | Since: base-4.9.0.0 |
Ord (U1 p) | Since: base-4.7.0.0 |
Ord (TypeRep a) | Since: base-4.4.0.0 |
Defined in Data.Typeable.Internal | |
(Ord a, Ord b) => Ord (a, b) | |
Defined in GHC.Classes | |
(Ix i, Ord e) => Ord (Array i e) | Since: base-2.1 |
Defined in GHC.Arr | |
Ord (Proxy s) | Since: base-4.7.0.0 |
Ord a => Ord (Arg a b) | Since: base-4.9.0.0 |
Ord (f p) => Ord (Rec1 f p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
Ord (URec Word p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: 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 | |
Ord (URec Int p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: 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 | |
Ord (URec Float p) | |
Defined in GHC.Generics Methodscompare :: URec Float p -> URec Float p -> Ordering Source (<) :: URec Float p -> URec Float p -> Bool Source (<=) :: URec Float p -> URec Float p -> Bool Source (>) :: URec Float p -> URec Float p -> Bool Source (>=) :: URec Float p -> URec Float p -> Bool Source | |
Ord (URec Double p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: URec Double p -> URec Double p -> Ordering Source (<) :: URec Double p -> URec Double p -> Bool Source (<=) :: URec Double p -> URec Double p -> Bool Source (>) :: URec Double p -> URec Double p -> Bool Source (>=) :: URec Double p -> URec Double p -> Bool Source max :: URec Double p -> URec Double p -> URec Double p Source min :: URec Double p -> URec Double p -> URec Double p Source | |
Ord (URec Char p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: 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 | |
Ord (URec (Ptr ()) p) | Since: base-4.9.0.0 |
Defined in GHC.Generics Methodscompare :: 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) | |
Defined in GHC.Classes | |
Ord (a :~: b) | Since: base-4.7.0.0 |
Defined in Data.Type.Equality | |
Ord (Coercion a b) | Since: base-4.7.0.0 |
Defined in Data.Type.Coercion Methodscompare :: Coercion a b -> Coercion a b -> Ordering Source (<) :: Coercion a b -> Coercion a b -> Bool Source (<=) :: Coercion a b -> Coercion a b -> Bool Source (>) :: Coercion a b -> Coercion a b -> Bool Source (>=) :: Coercion a b -> Coercion a b -> Bool Source | |
Ord (f a) => Ord (Alt f a) | Since: base-4.8.0.0 |
Defined in Data.Semigroup.Internal | |
Ord (f a) => Ord (Ap f a) | Since: base-4.12.0.0 |
Defined in Data.Monoid | |
Ord a => Ord (Const a b) | Since: base-4.9.0.0 |
Defined in Data.Functor.Const | |
Ord c => Ord (K1 i c p) | Since: base-4.7.0.0 |
Defined in GHC.Generics | |
(Ord (f p), Ord (g p)) => Ord ((f :+: g) p) | Since: base-4.7.0.0 |
Defined in GHC.Generics Methodscompare :: (f :+: g) p -> (f :+: g) p -> Ordering Source (<) :: (f :+: g) p -> (f :+: g) p -> Bool Source (<=) :: (f :+: g) p -> (f :+: g) p -> Bool Source (>) :: (f :+: g) p -> (f :+: g) p -> Bool Source (>=) :: (f :+: g) p -> (f :+: g) p -> Bool Source | |
(Ord (f p), Ord (g p)) => Ord ((f :*: g) p) | Since: base-4.7.0.0 |
Defined in GHC.Generics Methodscompare :: (f :*: g) p -> (f :*: g) p -> Ordering Source (<) :: (f :*: g) p -> (f :*: g) p -> Bool Source (<=) :: (f :*: g) p -> (f :*: g) p -> Bool Source (>) :: (f :*: g) p -> (f :*: g) p -> Bool Source (>=) :: (f :*: g) p -> (f :*: g) p -> Bool Source | |
(Ord a, Ord b, Ord c, Ord d) => Ord (a, b, c, d) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d) -> (a, b, c, d) -> Ordering Source (<) :: (a, b, c, d) -> (a, b, c, d) -> Bool Source (<=) :: (a, b, c, d) -> (a, b, c, d) -> Bool Source (>) :: (a, b, c, d) -> (a, b, c, d) -> Bool Source (>=) :: (a, b, c, d) -> (a, b, c, d) -> Bool Source | |
Ord (a :~~: b) | Since: base-4.10.0.0 |
Defined in Data.Type.Equality Methodscompare :: (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 | |
(Ord1 f, Ord1 g, Ord a) => Ord (Sum f g a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Sum | |
(Ord1 f, Ord1 g, Ord a) => Ord (Product f g a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Product Methodscompare :: Product f g a -> Product f g a -> Ordering Source (<) :: Product f g a -> Product f g a -> Bool Source (<=) :: Product f g a -> Product f g a -> Bool Source (>) :: Product f g a -> Product f g a -> Bool Source (>=) :: Product f g a -> Product f g a -> Bool Source max :: Product f g a -> Product f g a -> Product f g a Source min :: Product f g a -> Product f g a -> Product f g a Source | |
Ord (f p) => Ord (M1 i c f p) | Since: base-4.7.0.0 |
Defined in GHC.Generics Methodscompare :: M1 i c f p -> M1 i c f p -> Ordering Source (<) :: M1 i c f p -> M1 i c f p -> Bool Source (<=) :: M1 i c f p -> M1 i c f p -> Bool Source (>) :: M1 i c f p -> M1 i c f p -> Bool Source (>=) :: M1 i c f p -> M1 i c f p -> Bool Source | |
Ord (f (g p)) => Ord ((f :.: g) p) | Since: base-4.7.0.0 |
Defined in GHC.Generics Methodscompare :: (f :.: g) p -> (f :.: g) p -> Ordering Source (<) :: (f :.: g) p -> (f :.: g) p -> Bool Source (<=) :: (f :.: g) p -> (f :.: g) p -> Bool Source (>) :: (f :.: g) p -> (f :.: g) p -> Bool Source (>=) :: (f :.: g) p -> (f :.: g) p -> Bool Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e) => Ord (a, b, c, d, e) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e) -> (a, b, c, d, e) -> Ordering Source (<) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool Source (<=) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool Source (>) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool Source (>=) :: (a, b, c, d, e) -> (a, b, c, d, e) -> Bool Source max :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) Source min :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) Source | |
(Ord1 f, Ord1 g, Ord a) => Ord (Compose f g a) | Since: base-4.9.0.0 |
Defined in Data.Functor.Compose Methodscompare :: Compose f g a -> Compose f g a -> Ordering Source (<) :: Compose f g a -> Compose f g a -> Bool Source (<=) :: Compose f g a -> Compose f g a -> Bool Source (>) :: Compose f g a -> Compose f g a -> Bool Source (>=) :: Compose f g a -> Compose f g a -> Bool Source max :: Compose f g a -> Compose f g a -> Compose f g a Source min :: Compose f g a -> Compose f g a -> Compose f g a Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f) => Ord (a, b, c, d, e, f) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> Ordering Source (<) :: (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 (>) :: (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 max :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> (a, b, c, d, e, f) Source min :: (a, b, c, d, e, f) -> (a, b, c, d, e, f) -> (a, b, c, d, e, f) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g) => Ord (a, b, c, d, e, f, g) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> Ordering Source (<) :: (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 (>) :: (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 max :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) Source min :: (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) -> (a, b, c, d, e, f, g) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h) => Ord (a, b, c, d, e, f, g, h) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> Ordering Source (<) :: (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 (>) :: (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 max :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) Source min :: (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) -> (a, b, c, d, e, f, g, h) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i) => Ord (a, b, c, d, e, f, g, h, i) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> Ordering Source (<) :: (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 (>) :: (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 max :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) Source min :: (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) -> (a, b, c, d, e, f, g, h, i) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j) => Ord (a, b, c, d, e, f, g, h, i, j) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> Ordering Source (<) :: (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 (>) :: (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 max :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) Source min :: (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) -> (a, b, c, d, e, f, g, h, i, j) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k) => Ord (a, b, c, d, e, f, g, h, i, j, k) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Ordering 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 (<=) :: (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 (>=) :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> Bool Source max :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) Source min :: (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) -> (a, b, c, d, e, f, g, h, i, j, k) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l) => Ord (a, b, c, d, e, f, g, h, i, j, k, l) | |
Defined in GHC.Classes Methodscompare :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> Ordering 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 (<=) :: (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 (>=) :: (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 max :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) Source min :: (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) -> (a, b, c, d, e, f, g, h, i, j, k, l) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l, Ord m) => Ord (a, b, c, d, e, f, g, h, i, j, k, l, m) | |
Defined in GHC.Classes Methodscompare :: (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) -> Ordering 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 (<=) :: (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 (>=) :: (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 max :: (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) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) Source min :: (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) -> (a, b, c, d, e, f, g, h, i, j, k, l, m) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l, Ord m, Ord n) => Ord (a, b, c, d, e, f, g, h, i, j, k, l, m, n) | |
Defined in GHC.Classes Methodscompare :: (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) -> Ordering 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 (<=) :: (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 (>=) :: (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 max :: (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) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) Source min :: (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) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n) Source | |
(Ord a, Ord b, Ord c, Ord d, Ord e, Ord f, Ord g, Ord h, Ord i, Ord j, Ord k, Ord l, Ord m, Ord n, Ord o) => Ord (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) | |
Defined in GHC.Classes Methodscompare :: (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) -> Ordering 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 (<=) :: (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 (>=) :: (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 max :: (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) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) Source min :: (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) -> (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) Source |
Bounded Ordering | Since: base-2.1 |
Enum Ordering | Since: base-2.1 |
Defined in GHC.Enum Methodssucc :: 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 | |
Eq Ordering | |
Data Ordering | Since: base-4.0.0.0 |
Defined in Data.Data Methodsgfoldl :: (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 :: forall r r'. (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 | |
Defined in GHC.Classes | |
Read Ordering | Since: base-2.1 |
Show Ordering | Since: base-2.1 |
Ix Ordering | Since: base-2.1 |
Defined in GHC.Arr Methodsrange :: (Ordering, Ordering) -> [Ordering] Source index :: (Ordering, Ordering) -> Ordering -> Int Source unsafeIndex :: (Ordering, Ordering) -> Ordering -> Int Source inRange :: (Ordering, Ordering) -> Ordering -> Bool Source rangeSize :: (Ordering, Ordering) -> Int Source unsafeRangeSize :: (Ordering, Ordering) -> Int Source | |
Generic Ordering | Since: base-4.6.0.0 |
Semigroup Ordering | Since: base-4.9.0.0 |
Monoid Ordering | Since: base-2.1 |
type Rep Ordering | |
The Down
type allows you to reverse sort order conveniently. A value of type Down a
contains a value of type a
(represented as Down a
). If a
has an Ord
instance associated with it then comparing two values thus wrapped will give you the opposite of their normal sort order. This is particularly useful when sorting in generalised list comprehensions, as in: then sortWith by Down x
Since: base-4.6.0.0
Down a |
Monad Down | Since: base-4.11.0.0 |
Functor Down | Since: base-4.11.0.0 |
MonadFix Down | Since: base-4.12.0.0 |
Defined in Control.Monad.Fix | |
Applicative Down | Since: base-4.11.0.0 |
Foldable Down | Since: base-4.12.0.0 |
Defined in Data.Foldable Methodsfold :: Monoid m => Down m -> m Source foldMap :: Monoid m => (a -> m) -> Down a -> m Source foldMap' :: Monoid m => (a -> m) -> Down a -> m Source foldr :: (a -> b -> b) -> b -> Down a -> b Source foldr' :: (a -> b -> b) -> b -> Down a -> b Source foldl :: (b -> a -> b) -> b -> Down a -> b Source foldl' :: (b -> a -> b) -> b -> Down a -> b Source foldr1 :: (a -> a -> a) -> Down a -> a Source foldl1 :: (a -> a -> a) -> Down a -> a Source toList :: Down a -> [a] Source length :: Down a -> Int Source elem :: Eq a => a -> Down a -> Bool Source maximum :: Ord a => Down a -> a Source minimum :: Ord a => Down a -> a Source | |
Traversable Down | Since: base-4.12.0.0 |
MonadZip Down | Since: base-4.12.0.0 |
Show1 Down | Since: base-4.12.0.0 |
Read1 Down | Since: base-4.12.0.0 |
Defined in Data.Functor.Classes MethodsliftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (Down a) Source liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [Down a] Source liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (Down a) Source liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [Down a] Source | |
Ord1 Down | Since: base-4.12.0.0 |
Defined in Data.Functor.Classes | |
Eq1 Down | Since: base-4.12.0.0 |
Eq a => Eq (Down a) | Since: base-4.6.0.0 |
Data a => Data (Down a) | Since: base-4.12.0.0 |
Defined in Data.Data Methodsgfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Down a -> c (Down a) Source gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Down a) Source toConstr :: Down a -> Constr Source dataTypeOf :: Down a -> DataType Source dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Down a)) Source dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Down a)) Source gmapT :: (forall b. Data b => b -> b) -> Down a -> Down a Source gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Down a -> r Source gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Down a -> r Source gmapQ :: (forall d. Data d => d -> u) -> Down a -> [u] Source gmapQi :: Int -> (forall d. Data d => d -> u) -> Down a -> u Source gmapM :: Monad m => (forall d. Data d => d -> m d) -> Down a -> m (Down a) Source gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Down a -> m (Down a) Source gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Down a -> m (Down a) Source | |
Num a => Num (Down a) | Since: base-4.11.0.0 |
Ord a => Ord (Down a) | Since: base-4.6.0.0 |
Defined in Data.Ord | |
Read a => Read (Down a) | Since: base-4.7.0.0 |
Show a => Show (Down a) | Since: base-4.7.0.0 |
Generic (Down a) | Since: base-4.12.0.0 |
Semigroup a => Semigroup (Down a) | Since: base-4.11.0.0 |
Monoid a => Monoid (Down a) | Since: base-4.11.0.0 |
Generic1 Down | Since: base-4.12.0.0 |
type Rep (Down a) | |
Defined in GHC.Generics | |
type Rep1 Down | |
Defined in GHC.Generics |
comparing :: Ord a => (b -> a) -> b -> b -> Ordering Source
comparing p x y = compare (p x) (p y)
Useful combinator for use in conjunction with the xxxBy
family of functions from Data.List, for example:
... sortBy (comparing fst) ...
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Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.8.3/docs/html/libraries/base-4.13.0.0/Data-Ord.html