如何检查函数在派生类中是否被重写？

#include <iostream>

class Base {
public:
    virtual void foo() {
        std::cout << "Base::foo()" << std::endl;
    }
};

class Derived : public Base {
public:
    void foo() override {
        std::cout << "Derived::foo()" << std::endl;
    }
};

int main() {
    Base* basePtr = new Derived();
    basePtr->foo();  // 输出 "Derived::foo()"

    // 检查函数是否在派生类中被重写
    if (dynamic_cast<Derived*>(basePtr) != nullptr) {
        std::cout << "foo() is overridden in Derived class." << std::endl;
    } else {
        std::cout << "foo() is not overridden in Derived class." << std::endl;
    }

    delete basePtr;
    return 0;
}