explain_truncate_or_die(3)

💖 explain_truncate_or_die — Library Functions Manual 💖

okay bestie, sit down, hydrate, because today we're learning about explain_truncate_or_die from the Library Functions Manual and honestly? she's a whole vibe. she truncates a file AND she reports errors. icon behavior fr fr. 💅

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✨ NAME ✨

explain_truncate_or_die — truncate a file and report errors 🎀

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🌸 SYNOPSIS 🌸

#include <libexplain/truncate.h>
void explain_truncate_or_die(const char *pathname, long long length);

like. look at her. two args. no drama. 👑

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🦋 DESCRIPTION 🦋

so the explain_truncate_or_die function is used to call the truncate(2) system call. that's the whole point of her existence, no cap.

and here's the thing — if it fails? an explanation gets printed to stderr, obtained from explain_truncate(3), and then the process terminates by calling exit(EXIT_FAILURE). yes bestie, she said "we're not doing this halfway" and literally ended the whole program. dramatic? maybe. correct? absolutely. 💀

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

explain_truncate_or_die(pathname, length);

see? simple. elegant. main character energy. ✨

• pathname — the pathname, exactly as to be passed to the truncate(2) system call. like, character for character, don't get creative with it. 🍓
• length — the length, exactly as to be passed to the truncate(2) system call. same deal. no freestyling. 🙈

Returns:

this function only returns on success. on failure, prints an explanation and exits. so if she comes back to you? she's happy. if she doesn't? she already left the group chat. 😭

fr fr note: only returns on success. failure = explanation on stderr + exit. that's the deal, take it or leave it. 🫶

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🌈 SEE ALSO 🌈

• truncate(2) — truncate a file to a specified length
• explain_truncate(3) — explain truncate(2) errors
• exit(2) — terminate the calling process

go read them. iykyk. 📚✨

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👑 COPYRIGHT 👑

libexplain version 1.4 Copyright (C) 2008 Peter Miller

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okay that's the whole page bestie, you ate that 💅✨

this was explain_truncate_or_die(3) from libexplain version 1.4, copyright (C) 2008 Peter Miller — periodt, love you, go truncate something responsibly 🎀🦋💜