C++ 中指针操作符(*)重载备忘

下面代码可以编译通过，从代码中可以看出只要重载了指定对象的指针操作符重载时，编译器会自动转成父类指针类型

class OverLoadObjABase{public:    int x;};class OverLoadObjA: public OverLoadObjABase{};class OverLoadObjB{public:    __INLINE__ operator OverLoadObjA*() const    {        return (OverLoadObjA*)this;    }};void CalcOverload(OverLoadObjABase* pA){    pA->x ++;  //非法}// test * overloadint _tmain(int argc, _TCHAR* argv[]){    OverLoadObjB objB;    CalcOverload(objB);    getchar();    return 0;}