Mega Code Archive
An example that uses typeid on a polymorphic class hierarchy
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#include <iostream>
#include <typeinfo>
using namespace std;
class Mammal {
public:
virtual bool laysEggs() {
return false;
}
};
class Cat: public Mammal {
public:
};
class Platypus: public Mammal {
public:
bool laysEggs() {
return true;
}
};
int main()
{
Mammal *p, AnyMammal;
Cat cat;
Platypus platypus;
p = &AnyMammal;
cout << "p is pointing to an object of type ";
cout << typeid(*p).name() << endl;
p = &cat;
cout << "p is pointing to an object of type ";
cout << typeid(*p).name() << endl;
p = &platypus;
cout << "p is pointing to an object of type ";
cout << typeid(*p).name() << endl;
return 0;
}
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