42 lines
799 B
C++
42 lines
799 B
C++
/**
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* @file vir_de.cpp
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* @brief 派生类的析构函数没有被调用!
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* 输出结果：
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* Constructing base
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* Constructing derived
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* Destructing base
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* @author 光城
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* @version v1
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* @date 2019-07-24
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*/
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// CPP program without virtual destructor
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// causing undefined behavior
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#include<iostream>
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using namespace std;
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class base {
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public:
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base()
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{ cout<<"Constructing base \n"; }
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~base()
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{ cout<<"Destructing base \n"; }
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};
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class derived: public base {
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public:
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derived()
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{ cout<<"Constructing derived \n"; }
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~derived()
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{ cout<<"Destructing derived \n"; }
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};
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int main(void)
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{
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derived *d = new derived();
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base *b = d;
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delete b;
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return 0;
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}
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