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|
| class A
{
int a;
};
class B : virtual public A
{
};
class C : virtual public A
{
};
class D : public B, public C
{
};
int main(void)
{
cout << sizeof(A) << endl; //4
cout << sizeof(B) << endl; //8
cout << sizeof(C) << endl; //8
cout << sizeof(D) << endl; //12 A的int 4Byte，B C虚继承指针4+4，共12Byte.
return 0;
}
|