explain_getw_or_die(3)

💖 explain_getw_or_die — a libexplain moment 💖

okay bestie, so this is a page from the explain_getw_or_die(3) corner of the library-functions world 🌸 and honestly? it's giving "safety net for your getw(3) calls" and I'm obsessed.

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✨ NAME ✨

explain_getw_or_die — input a word (int) and report errors 🫶

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🌈 SYNOPSIS 🌈

#include <libexplain/getw.h>
int explain_getw_or_die(FILE *fp);
int explain_getw_on_error(FILE *fp);

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🦋 DESCRIPTION 🦋

so, the explain_getw_or_die function is here to call the getw(3) system call. and like, if it fails? an explanation gets printed to stderr — grabbed from the explain_getw(3) function — and then the process terminates by calling exit(EXIT_FAILURE). it's dramatic. it's final. periodt 💅

the explain_getw_on_error function also calls the getw(3) system call, and yeah, on failure it also prints an explanation to stderr from explain_getw(3), but — plot twist — it still returns to the caller. no exit, no goodbye, just vibes and a return ✨

• fp — the fp, exactly as to be passed to the getw(3) system call. like, no notes, no changes, hand it over as-is 🎀

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💫 RETURN VALUE 💫

the explain_getw_or_die function only returns on success — peep getw(3) for more info. on failure, it prints an explanation and exits. it does not return. it said "I'm out" 😭

the explain_getw_on_error function always returns the value returned by the wrapped getw(3) system call. every single time, bestie, no cap 🫶

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🍓 EXAMPLE 🍓

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

int result = explain_getw_or_die(fp);

main character line, honestly 👑

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👑 SEE ALSO 👑

• getw(3) — input a word (int)
• explain_getw(3) — explain getw(3) errors
• exit(2) — terminate the calling process

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🎀 COPYRIGHT 🎀

libexplain version 1.4 Copyright (C) 2010 Peter Miller

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and that's the whole page, bestie 🌈🦋 it's explain_getw_or_die(3) from libexplain version 1.4, copyright (C) 2010 Peter Miller — iconic behavior, no notes, bye 💖✨