It's not uncommon in example code to save a couple of lines for clarity. That, and Peter was throwing him down the template rabbit hole (my favorite in C++, by the way), so he might as well make ...

“C++ classes do not cause code bloat and using inheritance and virtual functions are not inherently slow.” I completely agree. What’s slowing this example down isn’t C++, or C: it’s the ...

Rather than expressing class inheritance with a very distinct syntax, would it make sense to use a syntax of anonymous member objects (similar to anonymous unions)? The advantages of such over a ...