在运行时获取C++对象名称

#include<iostream>
#include<string>

#define REGISTER_CLASS(classname) \
    static const char* g_classname##_name = #classname;

class Base {
public:
    virtual ~Base() {}
    const char* GetClassName() const {
        return g_classname_name;
    }
};

class Derived : public Base {
public:
    REGISTER_CLASS(Derived)
};

int main() {
    Derived d;
    std::cout << "Object name: " << d.GetClassName()<< std::endl;
    return 0;
}