CPP Module 03

In this mini post-series we'll explore how clang implements vtables & RTTI. In this part we'll start with some basic classes and later on cover multiple inheritance and virtual inheritance. Please note that this mini-series will include some digging into the binary generated for our different pieces of code via gdb.

The world of single-parent inheritance hierarchies is simpler for the compiler. As we saw in Part 1, each child class extends its parent vtable by appending entries for each new virtual method. In this post we will cover multiple inheritance, which complicates things even when only inheriting from pure-interfaces.

The world of single-parent inheritance hierarchies is simpler for the compiler. As we saw in Part 1, each child class extends its parent vtable by appending entries for each new virtual method. In this post we will cover multiple inheritance, which complicates things even when only inheriting from pure-interfaces.

In PART 1, we have learned about virtual function. In this article, we will learn about "How virtual base class works internally?".

This section covers a wide spectrum of questions/answers, ranging from the high-level / strategy / design issues, going all the way down to low-level / tactical / programming issues. We cover them in that order. Please make sure you understand the high-level / strategy / design issues.