It's right in transformers: https://hackage.haskell.org/package/transformers-0.4.3.0/docs/Data-Functor-S... On 18/05/15 15:32, Daniel van den Eijkel wrote:

Hi,

I am wondering if there is a library with a datatype like the following defined:

data EitherF m1 m2 a = LeftF (m1 a) | RightF (m2 a)

I could not find anything with Hoogle. Does anybody know such a thing?

Thank you & best, Daniel

_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe

https://hackage.haskell.org/package/comonad-transformers-4.0/docs/Data-Funct... On 18/05/15 22:32, Daniel van den Eijkel wrote:

Hi,

I am wondering if there is a library with a datatype like the following defined:

data EitherF m1 m2 a = LeftF (m1 a) | RightF (m2 a)

I could not find anything with Hoogle. Does anybody know such a thing?

Thank you & best, Daniel

_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe