C ++析构函数:何时释放内存? [英] C++ destructor: when the memory gets freed?

问题描述

如果我删除了一个导致其析构函数被调用的对象，那么在析构函数完成函数中的所有操作之前或之后，内存是否将被释放?

If I delete an object which causes its destructor to be called, does the memory get freed before or after the destructor has finished doing whatever there is in the function?

推荐答案

仅在最小派生类子对象被销毁后才释放内存.因此，如果您有:

Memory is only freed once the least derived class subobject has been destroyed. So if you have:

class Base {
};

class Derived : public Base {
public:
    ~Derived();
};

然后先销毁 Derived ，然后销毁 Base ，然后才释放内存.

then first Derived is destroyed, then Base is destroyed and only then memory is deallocated.

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