手动对象构造函数调用 [英] manual object constructor call

问题描述

您能告诉我是否可以手动调用对象构造函数？我知道这是错误的，我永远不会在我自己的代码，像这样的事情，我知道我可以通过创建和调用初始化函数来解决这个问题，但问题是，我偶然发现了一个情况下，有成千上万的代码行对象及其父对象的构造函数...

Can you please tell me if it is possible to call object constructor manually? I know it's wrong and I would never do something like that in my own code and I know I can fix this problem by creating and calling initialization function, however the problem is that I stumbled at a case where there are thousands of lines of code in object's and its parents' constructors...

class MyClass()
{
    MyClass() { }
    virtual ~MyClass();

    void reset()
    {
         this->~MyClass();
         this->MyClass::MyClass(); //error: Invalid use of MyClass
    }
};

推荐答案

直接叫那些。即

class MyClass {
public:
    MyClass() { construct(); }
    ~MyClass() { destruct(); }

    void reset() {
        destruct();
        construct();
    }

private:
    void construct() {
        // lots of code
    }

    void destruct() {
        // lots of code
    }
};

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