Matthias

Most of it looks good to me. I checked the tests cases (`isbn_verifier_test.cpp` and `tests.toml`), they are an exact translation of the `canonical-data.json`. The solution seems to be correct (except...

Looks good to me. Now let's wait for the maintainers. > Is there a better way? I don't know. There's some tooling that performs validation checks but I never got...

Are you still working on it? Do you need help or feedback?

Did we come to some sort of agreement here? I'm willing to make the changes so that we can close this issue.

These are the exercises (in the order they appear on https://exercism.org/tracks/c/exercises and in [config.json](https://github.com/exercism/c/blob/main/config.json)) with their difficulty and what the `.h` file initially contains: | slug | difficulty | initially...

Having looked at them all I agree with @joshgoebel, they are pretty inconsistent. As a C programmer I really like the exercises that provide stubs with comments. That makes it...

I forgot one thing: Shouldn't `example.h` and `example.cpp` be in the `.meta/` directory?

Looks good to me. Let's wait what the maintainers say.

That sounds like a topic for a "Concept exercise", with some explaining paragraphs and 2-5 simple tasks that would take an experienced C++ programmer 5-15 minutes. Currently the C++ track...

> When deciding on the complexity of the implied solution it will be good to consider where in the track progression it will fit I haven't thought about that at...