Memory Management - Poco

#include "Poco/AutoPtr.h"
#include "Poco/RefCountedObject.h"
class A: public Poco::RefCountedObject {};
class B: public A {};
class C: public Poco::RefCountedObject {};
int main(int argc, char** argv)
{
Poco::AutoPtr pA;
Poco::AutoPtr pB(new B);
pA = pB;
pA = new B;
// okay, pB is a subclass of pA
// pB = pA; // will not compile
pB = pA.cast();
// okay
Poco::AutoPtr pC(new C);
pA = pC.cast();
// pA is null
}
return 0;