C/C++基础语法 35 浅拷贝和深拷贝 优化

[Wongony]

	~Student() {
        cout << "~Student " << &name << endl;
        delete name;
        name = NULL;
        }

析构函数中输出 name 指向的地址

	~Student() {
        cout << "~Student " << static_cast<void*>(name) << endl;
        delete name;
        name = NULL;
        }

//浅拷贝执行结果： //Student //copy Student //~Student 0x7fffed0c3ec0 //~Student 0x7fffed0c3ec0 //*** Error in `/tmp/815453382/a.out': double free or corruption (fasttop): 0x0000000001c82c20 ***

//深拷贝执行结果： //Student //copy Student //~Student 0x7fffebca9fb0 //~Student 0x7fffebca9fc0