One of the things I like to do is compare how different languages solve the same problem — especially when they end up having very different approaches. It’s always educational. In this case, a bunch of us have been working hard on trying to get reflection — a really transformative language feature — into C++26. Fundamentally, reflection itself can be divided into two pieces:

This is a blog post that really is about C++, but with a look at how Rust does things. So, this is an interesting C++/Rust comparison for once.

  • BB_C@programming.dev
    1·
    4 minutes ago

    In Rust, you provide a string — that is injected to be invoked internally. In C++, we’d just provide a callable.

    This is because Rust’s attribute grammar can’t support a callable here.

    I don’t do C++ as a life choice, and thus not 100% sure what the author means here. But I have the feeling that he is wrong, on multiple levels even 😉