退出 C 中的程序时是否释放所需的已分配内存 [英] Is freeing allocated memory needed when exiting a program in C

问题描述

如果我使用 malloc 在我的 C 程序中分配了内存，现在我想退出，我是否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，它将是被操作系统释放?

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?

我在 Linux 环境中运行.

I run in Linux environment.

推荐答案

任何现代操作系统都会在进程终止后清理所有内容，但依赖于此通常不是一个好的做法.

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

这取决于您正在编写的程序.如果它只是一个快速运行和终止的命令行工具，您可能不会费心清理.但请注意，正是这种心态导致守护进程和长时间运行的程序出现内存泄漏.

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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