Yes, I agree. Unfortunately in the framework provided in this chapter there are more problems than the one you mentioned David. I know I could google each one, make the compiler happy and then get on with exercises but I think that this is not an optimal learning experience. Also I don't know whether all exercises are even sensical with new features being added. On Sun, 6 Nov 2022 at 18:44, Brandon Allbery wrote:

This being a beginners course, it would still be better if it were kept up to date with such changes instead of requiring newcomers to know about them. Byorgey?

On Sun, Nov 6, 2022 at 12:42 PM David Feuer wrote:

...

The changes needed to make it work should be minor. Since you call out

the chapter on monoids, any Monoid instance now needs a Semigroup instance.

...

Before:

instance Monoid X where mappend a b = ... mempty = ...

Now:

instance Semigroup X where a <> b = ... instance Monoid X where -- mappend no longer needs to be defined mempty = ...

On Sun, Nov 6, 2022, 12:37 PM Borys Kopeć

...

...

Hi all,

I've been working through the CIS 194 course recently and unfortunately

from lecture 7 onwards the code is not compliant with current compiler.

...

I can still follow the lectures but I'd like to do every homework

exercise. Unfortunately most homework exercises provide you with a code

wrote: framework to work with and this code does not compile.

...

...

Do any of you know about updated versions or corrections to this

course? I believe there could be a repo where someone is keeping the course's homework up to date because this course is still quite popular.

...

Regards Borys _______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.

_______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.

-- brandon s allbery kf8nh allbery.b@gmail.com

https://github.com/byorgey/haskell-course is the canonical github repo with the materials (though unfortunately I think most people get the material from the upenn-hosted site, which I no longer have access to). I'm very happy to take PRs with updates. -Brent On Sun, Nov 6, 2022 at 12:48 PM Jeff Clites via Haskell-Cafe < haskell-cafe@haskell.org> wrote:

...

On Nov 6, 2022, at 9:47 AM, Borys Kopeć wrote:

I know I could google each one, make the compiler happy and then get on with exercises but I think that this is not an optimal learning experience.

Not ideal, but it would be worth giving it a try and seeing if you can push through, because deciphering compiler errors are something you will have to deal with when writing your solutions, so it's educational in its own way. It might turn out to be just a few things that need fixing up.

...

Also I don't know whether all exercises are even sensical with new features being added.

I would think they probably are still relevant; the language concepts haven't changed.

(I did some quick Googling to see if anyone had put an updated version on GitHub, but I didn't turn anything up. There are a bunch of repos with exercise solutions, so some of them might contain updates to the provided sources but I didn't dig into it.)

Jeff

...

On Sun, 6 Nov 2022 at 18:44, Brandon Allbery wrote: This being a beginners course, it would still be better if it were kept up to date with such changes instead of requiring newcomers to know about them. Byorgey?

On Sun, Nov 6, 2022 at 12:42 PM David Feuer wrote:

...

The changes needed to make it work should be minor. Since you call out

the chapter on monoids, any Monoid instance now needs a Semigroup instance.

...

Before:

instance Monoid X where mappend a b = ... mempty = ...

Now:

instance Semigroup X where a <> b = ... instance Monoid X where -- mappend no longer needs to be defined mempty = ...

On Sun, Nov 6, 2022, 12:37 PM Borys Kopeć

...

...

Hi all,

I've been working through the CIS 194 course recently and

unfortunately from lecture 7 onwards the code is not compliant with current compiler.

...

I can still follow the lectures but I'd like to do every homework

exercise. Unfortunately most homework exercises provide you with a code

wrote: framework to work with and this code does not compile.

...

...

Do any of you know about updated versions or corrections to this

course? I believe there could be a repo where someone is keeping the course's homework up to date because this course is still quite popular.

...

Regards Borys

-- brandon s allbery kf8nh allbery.b@gmail.com

_______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.

Thank you Brent for answering. I'll continue with the course and try to update the code framework as necessary. If there happens to be a problem that I cannot solve (since it goes outside of my beginner's knowledge scope) is it okay for me to write to you? On Sun, 6 Nov 2022 at 21:26, Brent Yorgey wrote:

https://github.com/byorgey/haskell-course is the canonical github repo with the materials (though unfortunately I think most people get the material from the upenn-hosted site, which I no longer have access to). I'm very happy to take PRs with updates.

-Brent

On Sun, Nov 6, 2022 at 12:48 PM Jeff Clites via Haskell-Cafe < haskell-cafe@haskell.org> wrote:

...

...

On Nov 6, 2022, at 9:47 AM, Borys Kopeć wrote:

I know I could google each one, make the compiler happy and then get on with exercises but I think that this is not an optimal learning experience.

Not ideal, but it would be worth giving it a try and seeing if you can push through, because deciphering compiler errors are something you will have to deal with when writing your solutions, so it's educational in its own way. It might turn out to be just a few things that need fixing up.

...

Also I don't know whether all exercises are even sensical with new features being added.

I would think they probably are still relevant; the language concepts haven't changed.

(I did some quick Googling to see if anyone had put an updated version on GitHub, but I didn't turn anything up. There are a bunch of repos with exercise solutions, so some of them might contain updates to the provided sources but I didn't dig into it.)

Jeff

...

On Sun, 6 Nov 2022 at 18:44, Brandon Allbery wrote: This being a beginners course, it would still be better if it were kept up to date with such changes instead of requiring newcomers to know about them. Byorgey?

On Sun, Nov 6, 2022 at 12:42 PM David Feuer wrote:

...

The changes needed to make it work should be minor. Since you call

out the chapter on monoids, any Monoid instance now needs a Semigroup instance.

...

Before:

instance Monoid X where mappend a b = ... mempty = ...

Now:

instance Semigroup X where a <> b = ... instance Monoid X where -- mappend no longer needs to be defined mempty = ...

On Sun, Nov 6, 2022, 12:37 PM Borys Kopeć

...

...

Hi all,

I've been working through the CIS 194 course recently and

unfortunately from lecture 7 onwards the code is not compliant with current compiler.

...

I can still follow the lectures but I'd like to do every homework

exercise. Unfortunately most homework exercises provide you with a code

wrote: framework to work with and this code does not compile.

...

...

Do any of you know about updated versions or corrections to this

course? I believe there could be a repo where someone is keeping the course's homework up to date because this course is still quite popular.

...

Regards Borys

-- brandon s allbery kf8nh allbery.b@gmail.com

_______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.