What are the different ways to define a custom deleter? How do function pointers work as custom deleters?
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what is unique_ptr Informational
- Why is explicit ownership transfer important for resource management? How can unique_ptr be used in factory functions?
- What is the syntax for using a function object as a deleter?
- What does the `swap()` method do?
- Refer to the relevant sections of the C++ standard. Compare and contrast unique_ptr with other resource management techniques in C++ (e.g., manual memory management, auto_ptr (deprecated)).
- What are the challenges and benefits of such a migration? Explain the concept of "sink" arguments (arguments that take ownership) and how unique_ptr is suitable for this purpose.
- Returning raw pointers from functions that take ownership
- How does moving a unique_ptr differ from copying?
- How does it serve as a building block for more complex smart pointers? How does the C++ standard define the behavior of unique_ptr?
- Why is move semantics important for unique_ptr? What happens when a unique_ptr goes out of scope?
- Can a unique_ptr to a base class manage a derived class object?
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