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dbl_shared.cpp
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dbl_shared.cpp
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// P R
// |\/|
// |/\|
// Q S
// \/
// T
#include <iostream>
class P {
public:
int p1;
P() {p1 = 7;}
virtual void pea() {std::cout << "P::pea\n";}
};
class R {
public:
int r1;
R() {r1 = 8;}
virtual void ah() {std::cout << "R::ah\n";}
};
class Q : public virtual P, public virtual R {
public:
int q1;
Q() {q1 = 9;}
virtual void pea() {std::cout << "Q::pea()\n";}
virtual void ah() {std::cout << "Q::ah()\n";}
};
class S : public virtual P, public virtual R {
public:
int s1;
S() {s1 = 10;}
virtual void pea() {std::cout << "S::pea()\n";}
virtual void ah() {std::cout << "S::ah()\n";}
};
class T: virtual public Q, virtual public S {
public:
int t1;
T() {t1 = 11;}
virtual void pea() {std::cout << "T::pea()\n";}
virtual void ah() {std::cout << "T::ah()\n";}
virtual ~T() {t1 = -1;}
};
void fred() {
T* t = new T();
delete t;
}
int main() {
T* t = new T();
t->pea();
t->ah();
Q* q = (Q*)t;
q->pea();
q->ah();
S* s = (S*)t;
s->pea();
s->ah();
((P*)((Q*)t))->pea();
((P*)((S*)t))->pea();
((R*)((Q*)t))->ah();
((R*)((S*)t))->ah();
//std::cout << "r1 from R from Q from T: " << ((R*)((Q*)t))->r1 << std::endl;
//std::cout << "r1 from T: " << t->r1 << std::endl;
return 0;
}