Quote: delete objects of a derived class with a virtual destructor in the base class; it will know the size of the object

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[Delete objects of a derived class] by adding a virtual destructor to the … Even an empty destructor will do: [e.g.,] 'employee::~employee(){}' This will cause the deallocation to be done from … [of the derived class]) … In general, it is wise to supply a … [with virtual functions].   Google-1   Google-2

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