这段代码运行时显示munmap_chunk(): invalid pointer，应该怎么修改？#include<iostream> #include<string> using namespace std; class Creature { public: Creature(const int& hands, const int& legs):_hands(hands),_legs(legs) {cout << "A Creature has been created!" << endl; cout << "It has " << hands << " hand(s)!" << endl; cout << "It has " << legs << " leg(s)!" << endl;} ~Creature() {cout << "Creature object exiled!" << endl;} int GetHands() const {return _hands;} int GetLegs() const {return _legs;} private: int _hands; int _legs; }; class Beast:virtual public Creature { public: Beast(const int& hands, const int& legs, const string& name) :Creature(hands,legs),_name(name){cout << "Its beast name is " << _name << endl;} ~Beast() {cout << "Beast object exiled!" << endl;} string GetName() const {return _name;} private: string _name; }; class Human:virtual public Creature { public: Human(const int& hands, const int& legs, const string& name):Creature(hands,legs),_name(name) {cout << "Its human name is " << _name << endl;} ~Human() {cout << "Human object exiled!" << endl;} string GetName() const {return _name;} private: string _name; }; class Orc:public Human,public Beast { public: Orc(const int& hands, const int& legs, const string& beast_name, const string& human_name):Creature(hands, legs),Beast(hands,legs,beast_name),Human(hands,legs,human_name){} ~Orc() {cout << "Orc object exiled!" << endl;} string GetBeastName() const {return Beast::GetName();} string GetHumanName() const {return Human::GetName();} };

这段代码中存在一个 Diamond 继承问题，即 Orc 类同时继承了 Human 和 Beast 类，而这两个类又都继承了 Creature 类，导致 Orc 类中存在两份 Creature 对象。为了解决这个问题，可以将 Creature 类的继承方式改为虚继承，即在 Creature 类继承声明中加上 virtual 关键字：

class Beast : virtual public Creature {
public:
    Beast(const int& hands, const int& legs, const string& name) :Creature(hands,legs),_name(name){
        cout << "Its beast name is " << _name << endl;
    }
    ~Beast() {
        cout << "Beast object exiled!" << endl;
    }
    string GetName() const {return _name;}
private:
    string _name;
};

class Human : virtual public Creature {
public:
    Human(const int& hands, const int& legs, const string& name):Creature(hands,legs),_name(name) {
        cout << "Its human name is " << _name << endl;
    }
    ~Human() {
        cout << "Human object exiled!" << endl;
    }
    string GetName() const {return _name;}
private:
    string _name;
};

class Orc : public Human, public Beast {
public:
    Orc(const int& hands, const int& legs, const string& beast_name, const string& human_name)
        :Creature(hands, legs), Beast(hands,legs,beast_name), Human(hands,legs,human_name) {}
    ~Orc() {
        cout << "Orc object exiled!" << endl;
    }
    string GetBeastName() const {return Beast::GetName();}
    string GetHumanName() const {return Human::GetName();}
};

另外，如果该程序还是出现 munmap_chunk(): invalid pointer 错误，可能是由于其他部分的代码引起的内存错误，需要进一步排查。