derived class's virtual assignment operator not being called

Question

I\'m pretty new to C++, and am trying to come to grips with virtual assignment. The program below consists of an abstract base class with two data members, and a derived cla

Answer 1

This is a bit old, but in case anyone else stumbles upon it:

To add to Mark's answer, you can do this by implementing

Derived & operator=(const Abstract & rs);

In this case you may need to use rs by casting it: dynamic_cast(rs)
Of course this should only be done carefully. The full implementation would be:

Derived & Derived::operator=(const Abstract & hs)
{
    if (this == &hs)
        return *this;
    Abstract::operator=(hs);
    style = new char[std::strlen(dynamic_cast(hs).style) + 1];
    std::strcpy(style, dynamic_cast(hs).style);
    return *this;
}