Intrusive Smart Pointer - Quant Developer Interview Question

Problem Description

Standard smart pointers often introduce unacceptable latency due to separate control block allocations and pointer indirection. Intrusive pointers address this by embedding the reference count directly within the object, ensuring a single memory allocation and improved cache locality for performance-critical applications. Task Implement the RefCounted base class and the IntrusivePtr class template to manage object lifecycles with embedded reference counting. The RefCounted class must handle int