C++对象模型 6.2

[starFalll]

最后一部分的说法以及测试程序可以勘正一下，在较新的GCC版本中不再需要使用者特别处理。
GCC版本：gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11)
测试程序：

#include<iostream>
using namespace std;
class base{
public:
    base() {cout << "base constructor" << endl;}
    virtual ~base() {cout << "base destructor" << endl;}
};

class derived : virtual public base{
public:
    derived() {cout << "derived constructor" << endl;}
    virtual ~derived() {cout << "derived destructor" << endl;}
};

int main()
{
    base *arr = new derived[5];
    delete [] arr;
    return 0;
}

输出结果：

base constructor
derived constructor
base constructor
derived constructor
base constructor
derived constructor
base constructor
derived constructor
base constructor
derived constructor
derived destructor
base destructor
derived destructor
base destructor
derived destructor
base destructor
derived destructor
base destructor
derived destructor
base destructor