The difference between delete and delete[] in C++(C++中delete和delete[]的区别)
问题描述
可能的重复:
C++ 中的删除与删除[] 运算符
我写了一个包含两个指针的类,一个是 char* color_
一个是 vertexesset* vertex_
其中 vertexesset
是一个我创建的类.在我开始时写的析构函数中
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_;
当涉及到析构函数时,它给了我一个分段错误.
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.两者有什么区别?
And now it works fine. What is the difference between the two?
推荐答案
当你new
一个数组类型时,你delete []
,然后delete
代码> 当你没有.示例:
You delete []
when you new
ed 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 [].
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本文标题为:C++中delete和delete[]的区别
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