Internally, that's what C++ is doing..Converting the abstractions into code. There is a lot of complexity hidden from view (you might see some of it when you get some esoteric template bug in your ide)

Btw, that code is using std::unordered_map which is notoriously slow compared to an ordinary std::map for a small amount of elements. And the unordered map of register names each with a pair, why? Why not use std::vector for fast lookup?

The crux of what i'm saying isn't anything new, Bjarne Stroustrup admits that C++ is mainly a high-level abstraction language. There is some new things, but really, the things that are new like << etc. are operator overloads which are just more abstractions.

For me the main issue with C++ is the idea of no overhead for features you don't use which is not bad idea, but is complete nonsense when the measure of “overhead” used by the language authors is some combination of how the hypothetical C code generated by hypothetical cfront behaves and how the resulting code would run on early 80's minicomputer...