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

30 Nov 2022


      Thanks you all for these rapid answers

----- Le 30 Nov 22, à 16:21, Henning Thielemann lemming@henning-thielemann.de a écrit :
...
On Wed, 30 Nov 2022, PICCA Frederic-Emmanuel wrote:
...
Hello, I have a type like this
data InputType = CristalK6C
              | MarsFlyscan
              | MarsSbs
              | SixsFlyMedH
              | SixsFlyMedV
              | SixsFlyMedVEiger
              | SixsFlyMedVS70
              | SixsFlyScanUhv
              | SixsFlyScanUhv2
              | SixsFlyScanUhvTest
              | SixsFlyScanUhvUfxc
              | SixsSbsFixedDetector
              | SixsSbsMedH
              | SixsSbsMedV
              | SixsSbsMedVFixDetector
 deriving (Eq, Show)
I want to create a list of each values in order to create meaningfull
error message for the user and simplify my Arbitrary instances.
deriving (Enum, Bounded)
then use [minBound .. maxBound]