What are the benefits of returning unique_ptr from factories? Discuss the use of unique_ptr in the context of Pimpl idiom (Pointer to Implementation).
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what is unique_ptr Informational
- How does ownership transfer work in these contexts? How does unique_ptr interact with different C++ standards (C++11, C++14, C++17, C++20, etc.)?
- What is the `*` operator used for with unique_ptr? Can you copy a unique_ptr?
- Does its use help or hinder memory fragmentation? Discuss the use of unique_ptr in implementing network protocols.
- Are there any situations where you cannot use `std make_unique`? How does unique_ptr support move semantics for arrays?
- Does `std make_unique` prevent certain types of exceptions?
- When is the managed object destroyed when using unique_ptr? Explain the behavior of unique_ptr when used in conjunction with `std optional`.
- What are the different ways to define a custom deleter? How do function pointers work as custom deleters?
- How does it help simplify class design? Explain the behavior of unique_ptr when used with custom allocation functions (overloading `new` and `delete`).
- Highlight common mistakes that can lead to leaks. How does unique_ptr contribute to writing more robust and maintainable C++ code?
- Can a variant hold a unique_ptr? Discuss the use of unique_ptr in implementing resource pools.
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