What Is Virtual Destructor? Why They Are Used?

1.	What Is Virtual Destructor? Why They Are Used?
Answer» Virtual destructors are USED for the same purpose as virtual functions. When you remove an object of subclass, which is REFERENCED by a parent CLASS pointer, only destructor of base class will get executed. But if the destructor is DEFINED USING virtual keyword, both the destructors [ of parent and sub class ] will get invoked. Virtual destructors are used for the same purpose as virtual functions. When you remove an object of subclass, which is referenced by a parent class pointer, only destructor of base class will get executed. But if the destructor is defined using virtual keyword, both the destructors [ of parent and sub class ] will get invoked.

Answer»

Virtual destructors are USED for the same purpose as virtual functions. When you remove an object of subclass, which is REFERENCED by a parent CLASS pointer, only destructor of base class will get executed. But if the destructor is DEFINED USING virtual keyword, both the destructors [ of parent and sub class ] will get invoked.

Virtual destructors are used for the same purpose as virtual functions. When you remove an object of subclass, which is referenced by a parent class pointer, only destructor of base class will get executed. But if the destructor is defined using virtual keyword, both the destructors [ of parent and sub class ] will get invoked.

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