10 lines
309 B
TeX
10 lines
309 B
TeX
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We can also pattern match on the result of a real expression, not just the input. For that, we write:
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\begin{haskellcode}
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f :: Int -> Bool
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f x = case x - 2 of
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2 -> True
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5 -> True
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y -> False
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\end{haskellcode}
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This allows more powerful pattern matching, especially when we define our own data structures.
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