[libcxx-commits] [libcxx] [libc++] Define an internal API for std::invoke and friends (PR #116637)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne requested changes to this pull request.

I like this refactoring, but I'd like to get clarity on the motivation for it and the next steps you plan.

https://github.com/llvm/llvm-project/pull/116637