Mega Code Archive
Use a reference with typeid
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#include <iostream>
#include <typeinfo>
using namespace std;
class Base {
public:
virtual bool lays_eggs() { return false; } // Base is polymorphic
};
class Derived1: public Base {
public:
};
class Derived2: public Base {
public:
bool lays_eggs() { return true; }
};
void WhatBase(Base &ob)
{
cout << "ob is referencing an object of type ";
cout << typeid(ob).name() << endl;
}
int main()
{
Base AnyBase;
Derived1 Derived1;
Derived2 Derived2;
WhatBase(AnyBase);
WhatBase(Derived1);
WhatBase(Derived2);
return 0;
}
ob is referencing an object of type 4Base
ob is referencing an object of type 8Derived1
ob is referencing an object of type 8Derived2
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