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Mappend to <> #36

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Mappend to <> #36

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8 changes: 4 additions & 4 deletions strict/src/Data/Strict/Tuple.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -168,7 +168,7 @@ instance (Semigroup a, Semigroup b) => Semigroup (Pair a b) where

instance (Monoid a, Monoid b) => Monoid (Pair a b) where
mempty = mempty :!: mempty
(x1 :!: y1) `mappend` (x2 :!: y2) = (x1 `mappend` x2) :!: (y1 `mappend` y2)
(x1 :!: y1) <> (x2 :!: y2) = (x1 <> x2) :!: (y1 <> y2)

-- deepseq
instance (NFData a, NFData b) => NFData (Pair a b) where
Expand All @@ -194,8 +194,8 @@ instance Bifunctor Pair where
second g (a :!: b) = a :!: g b

instance Bifoldable Pair where
bifold (a :!: b) = a `mappend` b
bifoldMap f g (a :!: b) = f a `mappend` g b
bifold (a :!: b) = a <> b
bifoldMap f g (a :!: b) = f a <> g b
bifoldr f g c (a :!: b) = g b (f a c)
bifoldl f g c (a :!: b) = g (f c a) b

Expand Down Expand Up @@ -231,7 +231,7 @@ instance Eq a => Eq1 (Pair a) where
liftEq = liftEq2 (==)

instance Ord2 Pair where
liftCompare2 f g (a :!: b) (a' :!: b') = f a a' `mappend` g b b'
liftCompare2 f g (a :!: b) (a' :!: b') = f a a' <> g b b'

instance Ord a => Ord1 (Pair a) where
liftCompare = liftCompare2 compare
Expand Down