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From: i@fuzy.me
Newsgroups: comp.lang.c
Subject: Re: avoiding strdup()
Date: Mon, 29 Apr 2024 22:38:38 +0800
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Lawrence D'Oliveiro <ldo@nz.invalid> writes:

> I was looking at the systemd source code the other day, and came across a 
> lot of this sort of thing:
>
>     _cleanup_free_ char *link = NULL;
>
> Now, what do you suppose “_cleanup_free_” does?

It's a dark magic of GCC to automatically free the memory when pointer
goes out of scope.