[Haskell-cafe] How to create a list of each constructor value

[Henning Thielemann]

On Wed, 30 Nov 2022, PICCA Frederic-Emmanuel wrote:

>> Also, you can simplify the "map pure (...)" by using `elements` :)
>
> thanks
>
> another question I have plenty of instance build like this
>
> instance Arbitrary TypeA where
>    arbitrary = TypeA <$> arbitrary <*> arbitrary ... <*> arbitrary


   uncurry TypeA <$> arbitrary
   uncurry3 TypeA <$> arbitrary


would be a bit shorter if this is important.