Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++'

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Test your C++ skills with our quiz based on Bruce Eckel's 'Thinking in C++'. Dive into object-oriented programming, advanced topics, and fundamentals. Perfect for learners and experts alike. Assess your knowledge and become a C++ master!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What does the VPTR point to?

VTABLE
Derived class
Base class
Virtual functions directly

The correct answer is: VTABLE

The VPTR, or virtual pointer, points to the VTABLE, which contains the addresses of the virtual functions in a class. This allows for runtime polymorphism, where the appropriate version of a virtual function is called based on the type of object it is pointing to. The other options are incorrect because -B: The VPTR does not point to the derived class, as this would defeat the purpose of dynamic binding. -C: The VPTR does not point to the base class, as this would not allow for the derived class's specific virtual function implementation to be called. -D: The VPTR does not point to the virtual functions directly, as this would not allow for dynamic binding and would also take up unnecessary memory.