FEOF(3POSIX)

📦 version 2017a, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu resolute, ubuntu stonking

🌸 FEOF — the girlies' guide to feof(3POSIX) 🌸

okay bestie, come sit with me, we're doing the POSIX Programmer's Manual today and honestly? it's giving very demure, very mindful. this one's called feof and it lives in section 3POSIX.

🫶 PROLOG

real talk first, no cap: this manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ — so if you're on Linux, go consult the corresponding Linux manual page for the deets, okay? — or, plot twist, the interface might not even be implemented on Linux at all. 💀

✨ NAME ✨

feof — test end-of-file indicator on a stream

🎀 SYNOPSIS 🎀

#include <stdio.h>

int feof(FILE *stream);

💖 DESCRIPTION 💖

so the way that this works is — the functionality described on this reference page is aligned with the ISO C standard. And listen: any conflict between the requirements described here and the ISO C standard is unintentional, fr fr. This volume of POSIX.1‐2017 defers to the ISO C standard. periodt. 👑

The feof() function shall test the end-of-file indicator for the stream pointed to by stream. That's it. That's the whole job. She's an icon, she's a legend, and she is the moment. ✨

And lowkey important: the feof() function shall not change the setting of errno if stream is valid. She minds her own business. Respect. 💅

🔥 RETURN VALUE 🔥

The feof() function shall return non-zero if and only if the end-of-file indicator is set for stream.

If and only if, bestie. Not "kinda", not "vibes-wise". Binary. Slay. 🌈

💀 ERRORS 💀

No errors are defined. Not one. Not a single one. She simply does not miss. 🙈

The following sections are informative.

🦋 EXAMPLES 🦋

None.

(yes really, she said nothing. iconic behaviour honestly.)

🌸 APPLICATION USAGE 🌸

None.

💜 RATIONALE 💜

None.

⭐ FUTURE DIRECTIONS ⭐

None.

👑 SEE ALSO 👑

  • clearerr()
  • ferror()
  • fopen()

The Base Definitions volume of POSIX.1‐2017, <stdio.h>

okay this is the part where I have to be serious for a sec, bear with me:

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group.

In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

and that's the whole page, bestie! 🫶 this absolute queen came to us from IEEE / The Open Group, 2017, filed under FEOF(3POSIX). go forth and check your EOF indicator responsibly. mwah. 💋✨

📦 where this page comes from