正在释放分配的内存需要退出在C程序时 [英] Is freeing allocated memory needed when exiting a program in C

问题描述

如果使用的malloc我分配的内存在我的C程序，现在我要退出，我必须释放分配的内存，或者我可以假设，因为我的整个程序终止时，它会被OS释放？

If I allocated memory in my C program using malloc and now I want to exit, do I have to free the allocated memory, or can I assume that since my entire program terminates, it will be freed by the OS?

我的Linux环境下运行。

I run in Linux environment.

推荐答案

任何现代操作系统将清理一切的过程结束之后，但它通常并不是靠这一个很好的做法。

Any modern operating system will clean up everything after a process terminates, but it's generally not a good practice to rely on this.

这取决于你正在写的程序。如果它只是运行并迅速终止一个命令行工具，你可能不打扰清理。但要知道，这是这种心态，导致内存泄漏的守护程序和长时间运行的程序。

It depends on the program you are writing. If it's just a command line tool that runs and terminates quickly, you may not bother cleaning up. But be aware that it is this mindset that causes memory leaks in daemons and long-running programs.

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