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C++ Smart Pointers
C++ Smart Pointers
Shared Pointers vs Unique Pointers
Shared pointers and unique pointers are both fundamental to modern C++ memory management. To determine when to choose one over the other, it’s important to understand their differences.
Ownership Model | Allows shared ownership across multiple areas | Enforces unique ownership at a given time |
Reference Count | Uses reference count to manage ownership | Does not use reference count |
Overhead | Moderate overhead due to reference counting | Minimal overhead as no reference counting is needed |
Complexity | Can be harder to manage due to shared ownership and potential circular references | Generally simpler ownership semantics |
Use Cases | Use when multiple parts need access to same object with complex lifetime | Use for most dynamic memory scenarios where sharing is not required |
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