class A
{
    int m_i;
    float m_f;
    struct 
    {
        char*  sz;
        int i;
        float f;
    }   m_s;
};
int _tmain(int argc, _TCHAR* argv[])
{
    A *pa;
    void* p = malloc(sizeof(A));
    memset(p, 0, sizeof(A));

    pa = new (p) A();
}

class Base {
public:
	int member;
};

class Derived1: virtual public Base {
};

class Derived2: virtual public Base {
};

class Test: public Derived1, public Derived2 {
public:
	void test() {
		if (&Derived1::member != &Derived2::member)
			throw -1;
	}
};

int
main() {
	Test t;
	try {
		t.test();
	} catch (int i) {
		return i;
	}

	return 0;
};

#include<stdio.h>
#include<memory.h>

class A
{
public:
	int R;
public:
	A(){ R=6;printf("%ld\n", sizeof(A)); memset(this, 0, sizeof(A)); }
	int Get(){ return R; }
	virtual int Set(int){ return R; }
};

void main()
{
	printf("%ld\n", sizeof(A));
	A a;
	printf( "%ld\n", a.Set(4) );
}