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13 de sept. de 2011 · Yes. A non-virtual destructor signifies that a class should not be used as a base-class. Not really; a non-virtual destructor signifies that deleting an instance of derived via a base pointer will not work. For example: class Base {}; class Derived : public Base {}; Base* b = new Derived; delete b; // Does not call Derived's destructor!
The non-virtual interface pattern (NVI) controls how methods in a base class are overridden. Such methods may be called by clients and overridable methods with core functionality. It is a pattern that is strongly related to the template method pattern.
The very new syntax of override allows to let the compiler to report an error, if one does not really override a virtual function N3206. class Base { virtual void vfunc(); void afunc(); };...
7 de may. de 2019 · The NVI, or Non-Virtual Interface design pattern, is in a way a mechanism to extend the functionality of a function, just alike inheritance allow classes to be extended. It’s one way of implementing the strategy pattern.
8 de ene. de 2012 · Non-virtual member functions are resolved statically. member function are binding statically at compile-time based on the type of the pointer (or reference) to the object. In contrast, virtual member functions are binding dynamically at run-time.
3 de sept. de 2022 · Non-Virtual Interface (NVI) idiom allows us to refactor before and after code fragments at one convenient location - the base class. The NVI idiom is based on 4 guidelines outlined by Herb Sutter in his article named "Virtuality"[2].
24 de ago. de 2022 · The Non-Virtual Interface is a way of implementation specific to C++. It decouples the public interface by making it non-virtual, from functions that are providing customization points. It’s all about making complex things simpler - that is our job as developers.
