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Glasgow Haskell Compiler
GHC
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pattern families
pattern families
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Update pattern families
authored
Apr 10, 2020
by
Icelandjack
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@@ -151,7 +151,7 @@ fn (Lookup "five" n) = n
```
```
wiki
ghci> fn
(
Map.fromList [("four", 4), ("five", 5)]
ghci> fn
do
Map.fromList [("four", 4), ("five", 5)]
5
```
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