C字符串删除 [英] C strings deletion in C++

问题描述

有什么好处，出了什么问题？在这种情况下，我必须调用删除，以防止内存泄漏？
另外，C和C ++中的行为是否完全相同？是否有任何差异？

What's good and what's wrong? In which case do I have to call delete in order to prevent memory leak? Also, is the behaviour exactly the same in C and C++? Are there any differences?

const char* a = "blahblah";
...
delete a;

char b* = new char('a');
...
delete b;

char c[100] = "blahblah";
...
delete c;

char d* = new char[40];
...
delete d;

char e* = new char[40];
...
delete[] e;

推荐答案

我必须调用delete才能防止内存泄漏。

In which case do I have to call delete in order to prevent memory leak

只有 delete 你从新和 delete [] 得到从 new [] 。每一个其他删除都是错误的。

Only delete what you got from new and delete [] what you got from new []. Every other delete is wrong.

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