C ++中delete和delete []之间的区别 [英] The difference between delete and delete [] in C++

问题描述

可能重复：

我写了一个包含两个指针的类，一个是 char * color _ 和一个在 vertexesset * vertex _ code> vertexesset 是我创建的类。在开始写的减法器

I've written a class that contains two pointers, one is char* color_ and one in vertexesset* vertex_ where vertexesset is a class I created. In the destractor I've written at start

delete [] color_;
delete [] vertex_;

当它来的析构函数给它一个分段错误。

When It came to the destructor it gave me a segmentation fault.

然后我将析构函数改为：

Then I changed the destructor to:

delete [] color_;
delete vertex_;

现在它工作正常。

推荐答案

您 delete [] 当你新编辑数组类型， delete 时，示例：

You delete [] when you newed an array type, and delete when you didn't. Examples:

typedef int int_array[10];

int* a = new int;
int* b = new int[10];
int* c = new int_array;

delete a;
delete[] b;
delete[] c; // this is a must! even if the new-line didn't use [].

这篇关于C ++中delete和delete []之间的区别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！