删除[]对象​​的数组 [英] delete[] an array of objects

问题描述

我已经分配的对象和数组

I have allocated and array of Objects

Objects *array = new Objects[N];

我应该如何删除这个数组？
刚

How should I delete this array? Just

delete[] array;

或遍历数组的元素？

for(int i=0;i<N;i++)
    delete array[i];
delete[];

感谢

更新：

我改变循环体为

delete &array[i];

要强制code编译。

推荐答案

每一个使用新应该由被平衡删除，每使用新[] 应该由平衡删除[] 。

Every use of new should be balanced by a delete, and every use of new[] should be balanced by delete[].

for(int i=0;i<N;i++)
    delete array[i];
delete[] array;

这将是唯一的，如果你初始化数组适当，因为：

That would be appropriate only if you initialized the array as:

Objects **array = new Objects*[N];
for (int i = 0; i < N; i++) { 
    array[i] = new Object;
}

这是你原来的code送给你的编译错误事实的是，你做错了什么强烈暗示。

The fact that your original code gave you a compilation error is a strong hint that you're doing something wrong.

顺便说一句，强制性的：避免与分配阵列新[] ;使用的std ::矢量代替，然后将其析构函数会照顾清理你。此外，它会异常安全通过，如果引发异常没有内存泄漏。

BTW, obligatory: avoid allocating arrays with new[]; use std::vector instead, and then its destructor will take care of cleanup for you. Additionally it will be exception-safe by not leaking memory if exceptions are thrown.

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