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C++ internals for software engineer role
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Module 3
Runtime Polymorphism Internals
1
Derived Class Memory Layout: Single Inheritance
Explain the memory layout of derived classes with single inheritance, focusing on base class subobjects.
2
Vtable and vptr in C++ Object Structure
Analyze the vtable (virtual method table) structure and vptr (virtual pointer) placement within an object.
3
Virtual vs. Non-Virtual Calls: A Runtime Performance Comparison
Trace a virtual function call through vtable lookup at runtime and compare its overhead to a non-virtual call.
4
Virtual Destructors for Polymorphic Deletion
Implement and explain the necessity of virtual destructors for preventing resource leaks in polymorphic deletion.
5
Understanding and Preventing Object Slicing
Analyze and prevent object slicing when passing derived classes by value.
6
Memory Layout in Multiple Inheritance
Explain the memory layout with multiple inheritance and the associated complexities (e.g., multiple vptrs).
7
Solving the Diamond Problem with Virtual Inheritance
Implement virtual inheritance to solve the 'diamond problem' and analyze its memory overhead.
8
Abstract Base Classes and Interfaces
Define abstract base classes using pure virtual functions to create interfaces.
Previous module
Object-Oriented C++: Memory and Mechanics
Next module
Resource Management and the RAII Idiom