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Within LTS Haskell 24.33 (ghc-9.10.3)
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(
+~ ) :: SemiNum absolute relative => absolute -> relative -> absoluteyi-language Yi.Lexer.Alex No documentation available.
(
+~ ) :: SemiNum absolute relative => absolute -> relative -> absoluteyi-language Yi.Utils No documentation available.
(
+*+ ) :: [a] -> [b] -> [(a, b)]universe-base Data.Universe.Helpers cartesianProduct (,)
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universe-base Data.Universe.Helpers Fair 2-way interleaving.
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ghc-internal GHC.Internal.Base No documentation available.
(
+## ) :: Double# -> Double# -> Double#ghc-internal GHC.Internal.Base No documentation available.
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ghc-internal GHC.Internal.Base (++) appends two lists, i.e.,
[x1, ..., xm] ++ [y1, ..., yn] == [x1, ..., xm, y1, ..., yn] [x1, ..., xm] ++ [y1, ...] == [x1, ..., xm, y1, ...]
If the first list is not finite, the result is the first list.Performance considerations
This function takes linear time in the number of elements of the first list. Thus it is better to associate repeated applications of (++) to the right (which is the default behaviour): xs ++ (ys ++ zs) or simply xs ++ ys ++ zs, but not (xs ++ ys) ++ zs. For the same reason concat = foldr (++) [] has linear performance, while foldl (++) [] is prone to quadratic slowdownExamples
>>> [1, 2, 3] ++ [4, 5, 6] [1,2,3,4,5,6]
>>> [] ++ [1, 2, 3] [1,2,3]
>>> [3, 2, 1] ++ [] [3,2,1]
(
+++ ) :: ArrowChoice a => a b c -> a b' c' -> a (Either b b') (Either c c')ghc-internal GHC.Internal.Control.Arrow Split the input between the two argument arrows, retagging and merging their outputs. Note that this is in general not a functor. The default definition may be overridden with a more efficient version if desired.
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ghc-internal GHC.Internal.Data.List (++) appends two lists, i.e.,
[x1, ..., xm] ++ [y1, ..., yn] == [x1, ..., xm, y1, ..., yn] [x1, ..., xm] ++ [y1, ...] == [x1, ..., xm, y1, ...]
If the first list is not finite, the result is the first list.Performance considerations
This function takes linear time in the number of elements of the first list. Thus it is better to associate repeated applications of (++) to the right (which is the default behaviour): xs ++ (ys ++ zs) or simply xs ++ ys ++ zs, but not (xs ++ ys) ++ zs. For the same reason concat = foldr (++) [] has linear performance, while foldl (++) [] is prone to quadratic slowdownExamples
>>> [1, 2, 3] ++ [4, 5, 6] [1,2,3,4,5,6]
>>> [] ++ [1, 2, 3] [1,2,3]
>>> [3, 2, 1] ++ [] [3,2,1]
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ghc-internal GHC.Internal.Data.OldList (++) appends two lists, i.e.,
[x1, ..., xm] ++ [y1, ..., yn] == [x1, ..., xm, y1, ..., yn] [x1, ..., xm] ++ [y1, ...] == [x1, ..., xm, y1, ...]
If the first list is not finite, the result is the first list.Performance considerations
This function takes linear time in the number of elements of the first list. Thus it is better to associate repeated applications of (++) to the right (which is the default behaviour): xs ++ (ys ++ zs) or simply xs ++ ys ++ zs, but not (xs ++ ys) ++ zs. For the same reason concat = foldr (++) [] has linear performance, while foldl (++) [] is prone to quadratic slowdownExamples
>>> [1, 2, 3] ++ [4, 5, 6] [1,2,3,4,5,6]
>>> [] ++ [1, 2, 3] [1,2,3]
>>> [3, 2, 1] ++ [] [3,2,1]