投射到指针 - 托管还是非托管？ [英] Casting to pointer - managed or unmanaged?

问题描述

假设我有以下代码：

Hi,

Let's say I have the following code:

consoleHelper.write_status("Error: " + (char*)gai_strerror(err_code));

在那里有一个char *，并且没有调用 delete 。这个内存是以某种方式自动管理的，还是你必须做以下的事情？

There's a cast there to a char* and there's no delete called on it. Is this memory somehow automatically managed, or would you have to do something like the following?

char* cast_ch = (char*)gai_strerror(err_code);
consoleHelper.write_status("Error: " + cast_ch);

delete cast_ch;

即使使用的内存很小，我也是d希望尽可能防止所有内存泄漏，以确保应用程序理论上可以永久运行而不会出现问题。



我尝试过： < br $>


没什么，只是征求意见

Even if the memory used is tiny, I'd like to prevent all memory leaks wherever possible to ensure the application can theoretically run forever with no issues.

What I have tried:

Nothing, just asking for advice

推荐答案

你不应该释放内存（它不是明确要求的文档，而且，你不知道图书馆实际如何分配它。）





请注意：如果有泄漏，这是（不太可能）图书馆的作者错误（可能无害）。另一方面，在指针上调用delete会很危险，完全由你负责。 ： - ）

You should NOT release memory (it is not explicitely required in the documentation and, moreover, you don't know how the library actually allocates it).


Please note: if there is a leak, that's a (unlikely) library's author mistake (and probably harmless). On the other hand, calling delete on the pointer would be dangerous and entirely of your responsibility. :-)

文档（您应该首先检查）： gai_strerror [ ^ ]告诉你返回是一个指向字符常量的指针，因此你不应该对它做任何事情。

The documentation (which you should always check first) : gai_strerror[^] tells you that the return is a pointer to a character constant, so you should not do anything with it.

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