QUICK_EXIT(3)

This is the QUICK_EXIT(3) page from the Library Functions Manual, bestie — and it’s all about the “bye, no long goodbyes” way to leave a program 💅

✨ NAME ✨

quick_exit — exits a program quickly, running minimal cleanup 🏃‍♀️💨

🫶 LIBRARY 🫶

Standard C Library (libc, -lc) — iconic, classic, literally in the name 💖

🌸 SYNOPSIS 🌸

#include <stdlib.h>

_Noreturn void
quick_exit(int status);

💅 DESCRIPTION 💅

Okay so quick_exit() exits the program quickly. Like, it calls any cleanup functions registered with at_quick_exit(3), but it does not call any C++ destructors, and it does not run cleanup code registered with atexit(3). Not those. Nope 🙈

Also: the stdio(3) file buffers are not flushed. So don’t expect a cute little buffer flush on the way out 😭

And here’s the vibe check: quick_exit() is async-signal safe when the functions registered with at_quick_exit(3) are. Periodt ⭐

🌈 RETURN VALUES 🌈

quick_exit() does not return. It’s gone. It said what it said 💀👑

🦋 SEE ALSO 🦋

• at_quick_exit(3)
• exit(3)

🎀 STANDARDS 🎀

The quick_exit() function conforms to ISO/IEC 9899:2011 (“ISO C11”) — certified standards girlie behavior 👑✨

Sign-off: this page is from Debian, dated November 4, 2017, and yes bestie, it’s the QUICK_EXIT(3) manual page 🫶💖