accessing protected base class / operators

[corcor]

Hi !

I want derive my class as protected from its baseclass, e.g.

class CMyRect : protected CRect
{
}

because nobody should change CRect directly, but I would like to provide a possibility to get a copy of the base class, e.g.

CMyRect* p = new CMyRect();
CRect r = *p;

or even can access const methods, like

CMyRect* p = new CMyRect();
int n = p->Height();

Is there a possibility to define (an) operator(s) for this ?

Thanks in advance !

[TheCPUWizard]

Not directly, but you can expost your own:

class Base
{
public:
    int Hieght();
}


class Derived : protected Base
{
public:
    int Hieght() { return Base::Hieght(); } 
}

Remember protected inheritance means "is implemented in terms of" and not "is a". Thie means that your callers should not count on the behaviour of the base class since you may choose to implement your derived class in a different manner at any time.

[corcor]

Hi !

Thanks for answering so fast !

Yes, I know that (standard) way, but I don't want to "override" all getter - methods, and I also don't want to provide a new method, like

const CRect* GetRect() const { return this; }

because the "user" of my class would always have to call

int i = p->GetRect()->Height();

Isn't there an easy way to just use an operator for the same functionality ?