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C/C++ code:
#include <iostream>
using namespace std;

class A{
public:
virtual void fun(float){
cout<<"A float"<<endl;
}
};
class B{
public:
virtual void fun(int){
cout<<"B int"<<endl;
}
};

class C: public B, public A{
public:
void fun(float){
cout<<"C float"<<endl;
}
void fun(int){
cout<<"C int"<<endl;
}
};
int main(void){
C* p=new C;
((B*)(A*)p)->fun(1);

return 0;
}

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C/C++ code:
int main(void){
C* p=new C;
((B*)(A*)p)->fun(1);
return 0;
}
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