explain_fwrite_or_die(3)

💖 explain_fwrite_or_die(3) 💖

okay bestie, welcome to explain_fwrite_or_die from the Library Functions Manual — it's a library function, not a command, so no shell prompt needed, just vibes 💅

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✨ NAME ✨

explain_fwrite_or_die — binary stream output, but make it report errors 🫶

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🦋 SYNOPSIS 🦋

#include <libexplain/fwrite.h>
size_t explain_fwrite_or_die(const void *ptr, size_t size, size_t nmemb,
FILE *fp);

like, copy that signature exactly, no cap, every character matters 👑

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🌸 DESCRIPTION 🌸

so the explain_fwrite_or_die function is literally just there to call the fwrite(3) system call for you. and the way it does it is: if things go wrong, it prints an explanation to stderr, which it gets from explain_fwrite(3), and then the process terminates by calling exit(EXIT_FAILURE). that's the whole plot twist 😭

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

size_t result = explain_fwrite_or_die(ptr, size, nmemb, fp);

and now the arg breakdown, one by one, no skipping 🎀

• ptr — the ptr, exactly as to be passed to the fwrite(3) system call.
• size — the size, exactly as to be passed to the fwrite(3) system call.
• nmemb — the nmemb, exactly as to be passed to the fwrite(3) system call.
• fp — the fp, exactly as to be passed to the fwrite(3) system call.

bestie this is the important part: it's exactly as to be passed. no remixing, no extra seasoning, you hand the same values straight through 💖

💜 Returns: 💜

this function only returns on success. on failure, it prints an explanation and exits. that's it, that's the deal — no error return value to check, because there's no coming back 🙈

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🌈 SEE ALSO 🌈

• fwrite(3) — binary stream output
• explain_fwrite(3) — explain fwrite(3) errors
• exit(2) — terminate the calling process

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👑 COPYRIGHT 👑

libexplain version 1.4 Copyright (C) 2008 Peter Miller

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and that's the whole page, bestie, you ate it 💅✨ libexplain version 1.4, Copyright (C) 2008 Peter Miller — mwah, go forth and stream those bytes responsibly 🍓🧚💜