REWIND(3P)

💫 PROLOG 💫

okay so bestie, real talk before we even get into it: this manual page is part of the POSIX Programmer's Manual. the Linux implementation of this interface may differ (so like, go check the corresponding Linux manual page for the deets on Linux behavior), or honestly the interface might not even be implemented on Linux at all. 🙈 just so you know what you're walking into.

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✨ NAME ✨

rewind — reset the file position indicator in a stream 🎀

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🌸 SYNOPSIS 🌸

#include <stdio.h>

void rewind(FILE *stream);

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🦋 DESCRIPTION 🦋

so the functionality described on this reference page is aligned with the ISO C standard. any conflict between the requirements described here and the ISO C standard is unintentional — no drama intended fr. this volume of POSIX.1‐2017 defers to the ISO C standard. 👑

the call:

rewind(stream)

shall be equivalent to:

(void) fseek(stream, 0L, SEEK_SET)

except that rewind() shall also clear the error indicator. that's the whole little extra sprinkle it brings. ✨

and because rewind() does not return a value (like, at all), an application wishing to detect errors should clear errno, then call rewind(), and if errno is non-zero, assume an error has occurred. it's giving "you have to go looking for the tea yourself." 💅

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💖 RETURN VALUE 💖

the rewind() function shall not return a value. that's it, that's the whole vibe. 🫶

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🔥 ERRORS 🔥

refer to fseek() with the exception of [EINVAL] which does not apply. (so like, [EINVAL] is not invited to this party. 🚫)

the following sections are informative.

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🌈 EXAMPLES 🌈

none. literally nothing. empty. a blank canvas. 🎨

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💜 APPLICATION USAGE 💜

none. also nothing. we're keeping it minimal bestie. 🌙

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⭐ RATIONALE ⭐

none. nada. zero thoughts, head empty, just vibes. 💀

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🧚 FUTURE DIRECTIONS 🧚

none. the future is unwritten and this function is not writing it. ✨

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🍓 SEE ALSO 🍓

• Section 2.5, Standard I/O Streams, fseek()
• The Base Definitions volume of POSIX.1‐2017, <stdio.h>

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👑 COPYRIGHT 👑

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 (it's the final boss, the source of truth, periodt). 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 .

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ok that's the whole page bestie, you ate that 💅 go forth and reset your file position indicators responsibly 🫶

IEEE/The Open Group, 2017 — REWIND(3P) 🌸 mwah, ily, see u in the next man page 💖