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Re: c++ inheritance
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Posted: May 16, 2007 1:10 PM
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> i have a base class "person" and two inherited classes,
> "student" and "teacher".Suppose there is an object which
> is both a student and a teacher. given a reference to the
> student object can i find out if this is a teacher as well?
Yes, consider code:
#include <iostream>
using std::cout;
using std::endl;
class person
{
//some members ...
public:
//it's important - person have to have virtual methods
virtual ~person(){} //good practice
};
class student : virtual public person
{
//some members
};
class teacher : virtual public person
{
//some members
};
class adiunkt : public student, public teacher
{
//some members
};
int main(int argc, char* argv[])
{
adiunkt a;
student * s = &a;
cout << dynamic_cast<teacher*>(s) << endl;
//you should see address of teacher ;)
return 0;
}
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