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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Test-integerness/Haskell/test-integerness-4.hs Normal file
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isIntegerF :: (Eq x, RealFrac x) => x -> Bool
isIntegerF x = x == fromInteger (truncate x)
instance ContainsInteger Double where isInteger = isIntegerF
instance Integral i => ContainsInteger (DecimalRaw i) where isInteger = isIntegerF
instance Integral i => ContainsInteger (Ratio i) where isInteger = isIntegerF