What implications does the "Rule of Three" have in C++ class design?
- Always implement three constructors
- Always use three public members in a class
- Always create three instances of a class
- Manage the copy constructor, assignment operator, and destructor
The "Rule of Three" in C++ suggests that if a class requires a user-defined destructor, copy constructor, or assignment operator, it likely requires all three. This rule arises due to the intricacies of dynamic resource management (like memory allocation) in C++. Implementing or omitting one without the others can lead to unexpected behavior.
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