On 21 Jun 2011, at 20:53, Elliot Stern wrote:
> A tuple is basically an anonymous product type. It's convenient to not have
> to spend the time making a named product type, because product types are so
> obviously useful.
>
> Is there any reason why Haskell doesn't have anonymous sum types? If there
> isn't some theoretical problem, is there any practical reason why they
> haven't been implemented?
The Either type is the nearest Haskell comes to having anonymous sum types.
If you are bothered because Either has a name and constructors, it does not
take long before you realise that (,) has a name and a constructor too.
Regards,
Malcolm
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