构造函数和析构函数继承 [英] Constructor and Destructor Inheritance

问题描述

我相信构造函数和 基类中的析构函数 不能由基类的派生类继承。我的理解是否正确。

I believe Constructors and Destructors in base class cannot be inherited by derived classes of the base class. Is my understanding correct.

推荐答案

您的理解是正确的。例如，如果你有

Your understanding is correct. For example, if you have

class Base
{
  Base(int i) {}
};

class Derived: public Base {};

Derived d(3);

这将无法编译，因为Base构造函数未被继承。
请注意，如果可能，编译器会创建默认和复制构造函数，并调用相应的基类构造函数，因此对于那些构造函数，它看起来像，就好像那些是继承的。

This will not compile because the Base constructor is not inherited. Note that default and copy constructor are created by the compiler if possible, and call the corresponding constructor of base classes, therefore for those constructors it looks as if those were inherited.

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