Template type check C++

Question

I have a template function which takes in objects. I need to determine whether the object is derived from a particular base class. If it is derived from the base class, I ne

Answer 1

You can use Run Time Type Identification (RTTI) for this purpose. An Example follows:

class A{
public:
virtual void func(){cout << "Base" << endl;}
virtual ~A(){}
};

class B:public A{
public:
void func(){cout << "Derived" << endl;}
};

int main(){
A * d1 = new B();
B * d2;

d1 -> func() ;

d2 = dynamic_cast(d1);

if(d2 != NULL)
       cout << "Base exists" << endl;
else
       cout << "No relation" << endl;

return 0;
}