Hi,<BR><BR>I have a base class whose destructor is pure virtual, so the class is abstract.<BR><BR>I have a derived class (subtype) whose multi-argument constructor wants to call the base class's zero ...

In C++, a constructor is a special function that must be invoked when an object is created. Its objective is to initialize a new object to a valid state before any processing occurs using the object.

When designing applications, it is important to know when to use an abstract class and when to use an interface. Although abstract classes and interfaces seem similar in some ways, there are key ...