Question: What are smartpointers? Why do they exist when we can just use a regular pointer? What are move semantics? Why are they necessary? What is

  1. What are smartpointers? Why do they exist when we can just use a regular pointer?
  2. What are move semantics? Why are they necessary?
  3. What is a design pattern? Explain the singleton, factory, and builder patterns.

c++ Programming

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