C++ High-Frequency Interview Questions Breakdown: How Does the Virtual Function Table Work?
In C++ interviews, questions about virtual functions and polymorphism are almost always essential topics. The core of this— the virtual function table (vtable)— often leaves many people confused. Understanding its working mechanism is very helpful for mastering runtime polymorphism, optimizing performance, and even troubleshooting complex bugs. Let’s clarify the principles, memory layout, and some practical … Read more