Re: [Haskell-cafe] state monad transformer that adds or combines state

You can apply StateT to an existing monad, e.g. StateT StateType (Either ErrorType). Then 'get' and 'put' can be used inside this monad. On 05/15/2018 04:29 PM, Dennis Raddle wrote:

I'm not sure what happens if I apply a StateT to an existing State or StateT monad. Not sure how 'get' and 'put' would function, or if I would need to lift get and put to choose which state to access.

D

On Tue, May 15, 2018 at 12:49 AM, Francesco Ariis mailto:fa-ml@ariis.it> wrote:

On Mon, May 14, 2018 at 10:27:19PM -0700, Dennis Raddle wrote: > In local computations, I may want to use some additional state. Is there a > way to add a little extra state temporarily?

Would StateT work (in general, taking advantage of what transformers have to offer)? _______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.

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