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

[PICCA Frederic-Emmanuel]

Thanks you all for these rapid answers

----- Le 30 Nov 22, à 16:21, Henning Thielemann lemming at 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]