[libcxx-commits] [libcxx] Speed up the time complexity of pre-C++20 operator<(std::tuple, std::tuple) (PR #214646)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 requested changes to this pull request.

How exactly is this quadratic? We're recusing `_Ip` times AFAICT. Also, can we simply use fold expressions instead? That should be both significantly simpler and faster to compile.

https://github.com/llvm/llvm-project/pull/214646