Visual C++ :: How To Clone Object

I define two classes in C++, as follows:

class CBaseClass {
...
}
class CDerivedClass : public CBaseClass {
...
}

And want to implement a clone function as follows:

CBaseClass *Clone(const CBaseClass *pObject) {
}

When an object of CDerivedClass is passed to Clone, then the function will also create a CDerivedClass object and return.

When an object of CBaseClass is passed to Clone, then the function will also create a CBaseClass object and return.

How to implement such a feature?