请用各种编译器测试，结果？

[yaner_327]

#include <iostream>

class EmptyClass
{
typedef int Int; //typedef members does not make a class nonempty
};

class EmptyTwo : public EmptyClass {};

class EmptyThree : public EmptyClass, public EmptyTwo {};


int main()
{
std::cout << "The size of Empty Class is : " << sizeof(EmptyClass) << std::endl;
std::cout << "The size of Empty Class is : " << sizeof(EmptyTwo) << std::endl;
std::cout << "The size of Empty Class is : " << sizeof(EmptyThree) << std::endl;

return 0;
}

[chunhai12]

Empty Class的大小都是1

[visual4825]

楼上用的什么编译器？？？

我的VC6.0, 编译错误 ： direct base 'EmptyClass' is inaccessible; already a base

of 'EmptyTwo'

[chunhai12]

我不只是针对楼主的代码
而是泛指Empty Class的大小都是1

[visual4825]

抱歉，楼上的，看了一天，眼花了，呵呵 勿怪

[zsh6709]

把class EmptyThree : public EmptyClass, public EmptyTwo {}; 这句中的
“public EmptyClass,”去掉就ok了
结果都是1