相关疑难解决方法(0)

我基本上不懂clang的-Wweak-vtables.这是我到目前为止所观察到的:

案例一:(触发警告)

class A {
    public:
    virtual ~A(){}        
};

class B : public A {
    public:
    virtual ~B(){}
};

int main(){}

案例二:(不触发警告)

class A {
    public:
    virtual ~A(){}        
};   

int main(){}

案例三:(不触发警告)

class A {
    public:
    virtual ~A();

};

A::~A(){}

class B : public A {
    public:
    virtual ~B(){}
};

int main(){}

案例四:(触发警告)

class A {
    public:
    virtual ~A(){}
    virtual void fun(){}        
};    

class B : public A {
    public:
    virtual ~B(){}
};

int …