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27 lines
511 B
Idris
27 lines
511 B
Idris
foo : Int -> Int
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foo x = case isLT of
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Yes => x*2
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No => x*4
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where
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data MyLT = Yes | No
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isLT : MyLT
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isLT = if x < 20 then Yes else No
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even : Nat -> Bool
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even Z = True
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even (S k) = odd k where
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odd : Nat -> Bool
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odd Z = False
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odd (S k) = even k
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test : List Nat
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test = [c (S 1), c Z, d (S Z)]
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where c : Nat -> Nat
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c x = 42 + x
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d : Nat -> Nat
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d y = c (y + 1 + z y)
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where z : Nat -> Nat
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z w = y + w
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