/******************************************************************************
Online C++ Compiler.
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*******************************************************************************/
#include <iostream>
using namespace std;
class A {
public:
virtual void f() { printf( "1" ); }
};
class B : public A {
public:
virtual void g_ptr() { ((A*)(this))->f(); } //3
virtual void g_ref() { ((A&)(*this)).f(); } //3
virtual void g_cast() { ((A)(*this)).f(); } //1
};
class C : public B {
public:
virtual void f() { printf( "3" ); }
};
void OnStart()
{
B *b = new C;
b->g_ptr();
b->g_ref();
b->g_cast();
}
int main()
{
OnStart();
return 0;
}
