explain_asprintf_or_die(3)

💖 explain_asprintf_or_die(3) 💖

okay bestie, welcome to the libexplain corner of the manual, it's giving "Library Functions Manual" and honestly? we're obsessed. sit down, grab a strawberry 🍓, and let's talk about explain_asprintf_or_die.

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✨ NAME ✨

explain_asprintf_or_die — print to allocated string and report errors

like, it does the thing, and if the thing goes wrong it tells you about it. no cap.

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🌸 SYNOPSIS 🌸

#include <libexplain/asprintf.h>
int explain_asprintf_or_die(, ...);
int explain_asprintf_on_error(, ...);

yes, the signature really does look like that. we don't ask questions, we just include the header. 💅

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🦋 DESCRIPTION 🦋

so, the explain_asprintf_or_die function is used to call the asprintf(3) system call. and when it fails? an explanation gets printed to stderr, obtained from the explain_asprintf(3) function, and then the process terminates by calling exit(EXIT_FAILURE). it's dramatic, it's final, it's main character energy. 💀

the explain_asprintf_on_error function is also used to call the asprintf(3) system call. on failure, an explanation will be printed to stderr, obtained from the explain_asprintf(3) function — but this one still returns to the caller. it's the chill sibling. it tells you what went wrong and then hands the situation back to you. 🫶

one of these functions ends your whole program. the other one just gossips to stderr and lets you keep going. choose wisely, bestie.

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⭐ RETURN VALUE ⭐

the explain_asprintf_or_die function only returns on success — see asprintf(3) for more information. on failure, it prints an explanation and exits. it does not return. like, it's gone. it left the group chat. 😭

the explain_asprintf_on_error function always returns the value return by the wrapped asprintf(3) system call.

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🎀 EXAMPLE 🎀

the explain_asprintf_or_die function is intended to be used in a fashion similar to the following example:

int result = explain_asprintf_or_die();

that's it. that's the vibe. simple, clean, iconic. ✨

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🌈 SEE ALSO 🌈

• asprintf(3) — print to allocated string
• explain_asprintf(3) — explain asprintf(3) errors
• exit(2) — terminate the calling process

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👑 COPYRIGHT 👑

libexplain version 1.4 Copyright (C) 2013 Peter Miller

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and that's the whole page, bestie 💜 this was explain_asprintf_or_die(3) from the libexplain library, version 1.4, with copyright 2013 Peter Miller — so when you're out there calling asprintf and everything's lowkey on fire, at least now you know who to thank. go forth and slay. 🧚✨