There's quite a lot about C++ which wouldn't be covered in a simple tutorial, but the meaning of class/struct is a pretty basic part of the language, hardly obs

There's quite a lot about C++ which wouldn't be covered in a simple tutorial, but the meaning of class/struct is a pretty basic part of the language, hardly obscure. Maybe it's something you could miss if you're coming from a strong C background and still thinking of C++ as C-with-classes, but otherwise it's something any serious user of the language would pick up.