"Although the operating system is written in C++, most C++ features are avoided."

From https://gitlab.com/nakst/essence/-/blob/master/help/Contribu...

Yes, this is kind of stupid.

Certain people have been doing this sort of thing forever. It was never a good idea. Whenever you probe why they thought it was a good idea, all the reasons (where they are expressible at all) turn out to depend on falsehoods. Most usually, though, it amounts to laziness about learning anything new.

You can see effective use of Modern C++ in SerenityOS, to excellent effect.

Usually orthodox c++ looks something like: https://gist.github.com/bkaradzic/2e39896bc7d8c34e042b

this is from bgfx

> UPDATE As of January 14th 2019, Orthodox C++ committee approved use of C++14.

So it is basically Modern C++, just a few years later.

It reminds me of Carmack's subset of C++. In other words, it doesn't suck.