//
// Created by dongl on 22-9-28.
//

#ifndef MSTL_SHARED_PTR_H
#define MSTL_SHARED_PTR_H

#endif //MSTL_SHARED_PTR_H

/// 智能指针  像一个指针
template<class T>
class shared_ptr{
public:
    T& operator*() const {
        return *px;
    }

    T* operator->() const {
        return px;
    }

    shared_ptr(T* p) : px(p) {}
private:
    T* px;
    long* pn;
};