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21 lines
424 B
Idris
21 lines
424 B
Idris
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natToInt : Nat -> Integer
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natToInt Z = 0
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natToInt (S k) = 1 + natToInt k
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%builtin NaturalToInteger natToInt
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lt : Nat -> Nat -> Bool
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lt Z Z = False
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lt Z _ = True
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lt (S j) (S k) = lt j k
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lt (S _) Z = False
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%transform "lt" lt j k = intToBool (prim__lt_Integer (natToInt j) (natToInt k))
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main : IO ()
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main = do
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printLn $ natToInt 3141592
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printLn $ natToInt 12345
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printLn $ lt 100 1000
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printLn $ lt 9566 7554
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