Haskell Int -> Word64 conversion

Question

This should be pretty simple. I have an Int and I want to convert it to a Word64. It can never be less than 0. I don't mind if it has error checking or not. It seems I can do the opposite conversion using fromIntegral, but I can't find the inverse function.

Thanks.

Answer 1

well,

fromIntegral :: (Integral a, Num b) => a -> b

should be perfectly capable of converting from Int to Word64 since Int is an instance of Integral and Word64 is an instance of Num