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 ...

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.

This has C++'s default return-by-value semantics. It returns a copy of what is in the local memory. It does this by using the class's copy constructor. A copy constructor is a constructor for a class ...