在C ++中通过引用实现矢量指针和传递对象 [英] Vector pointers and passing objects by reference in C++

问题描述

我有以下课程:

class Database
{
private:
    vector<myObject*> m_vectorObj;

public: 
    void addObject(myObject &passObj)
}

我正在尝试这样做:

void Database::addObject (myObject &passObj)
{
    m_vectorObj.push_back(passObj);
}

但是给我的错误是没有匹配的函数要调用"，我该如何工作并传递对象并存储指针?

But is giving me the error "No matching function to call", how can I make this work and pass the object and store the pointer ?

推荐答案

首先，问问自己是否真的需要使用指针

First of all, ask yourself if you really need to use pointers

如果您这样做，那么您有2个选择.

If you do, then you have 2 options.

m_vectorObj.push_back(&passObj);
                      ^

2:更改功能(从引用更改为指针)

void Database:addObject (myObject *passObj)//pointer to myObject instead of reference
{
    m_vectorObj.push_back(passObj);
}

---

我完全不会使用指针，但是我建议您将它们封装到 std::unique_ptr

---

I wouldn't use pointers at all, but i suggest you to encapsulate'em into std::unique_ptr

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