What are advanced usage patterns for smart pointers in C++?
An example of an AI chatbot conversation about advanced smart pointer usage in C++.
What are some advanced usage patterns for smart pointers in C++?
Advanced usage patterns for smart pointers include custom deleters, shared ownership, and weak pointers to prevent circular references.
Can you explain how to use custom deleters with smart pointers?
Sure! You can provide a custom deleter when creating a std::shared_ptr by passing a lambda or a function pointer as the second argument.
What are the benefits of using std::weak_ptr?
std::weak_ptr helps to break circular references by allowing you to reference an object without increasing its reference count.
Are there any performance considerations when using smart pointers?
Yes, smart pointers can introduce overhead due to reference counting, so it's important to use them judiciously in performance-critical code.
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