WCSLEN(3POSIX)

💖 WCSLEN(3POSIX) — the POSIX Programmer's Manual, bestie edition 💖

okay so this page is literally part of the POSIX Programmer's Manual, and we're doing wcslen / wcsnlen today. 🎀

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🌸 PROLOG 🌸

okay bestie, real talk before we start: this manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ — so pls consult the corresponding Linux manual page for details of Linux behavior — or honestly the interface may not even be implemented on Linux at all. 💀 iykyk.

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✨ NAME ✨

wcslen, wcsnlen — get length of a fixed-sized wide-character string 🦋

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🌈 SYNOPSIS 🌈

#include <wchar.h>

size_t wcslen(const wchar_t *ws);
size_t wcsnlen(const wchar_t *ws, size_t maxlen);

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👑 DESCRIPTION 👑

For wcslen(): bestie, 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. This volume of POSIX.1‐2017 defers to the ISO C standard. periodt. 💅

The wcslen() function shall compute the number of wide-character codes in the wide-character string to which ws points — not including the terminating null wide-character code. so like, it counts the actual characters, not the little ghost null at the end. 🫶

The wcsnlen() function shall compute the smaller of:

• the number of wide characters in the array to which ws points, not including any terminating null wide-character code, and
• the value of maxlen.

The wcsnlen() function shall never examine more than the first maxlen characters of the wide-character array pointed to by ws. she stays in her lane, no cap. 🙈

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💜 RETURN VALUE 💜

The wcslen() function shall return the length of ws. that's it, that's the whole vibe. ✨

The wcsnlen() function shall return the number of wide characters preceding the first null wide-character code in the array to which ws points — if ws contains a null wide-character code within the first maxlen wide characters. Otherwise, it shall return maxlen. 🎀

No return values are reserved to indicate an error. so like, no sneaky error code hiding in there, bestie. 🦋

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💀 ERRORS 💀

No errors are defined.

The following sections are informative. (translation: the rest of this page is ✨lore✨, not rules. slay.)

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🍓 EXAMPLES 🍓

None. 😭 not a single one. iconic of them honestly.

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🧚 APPLICATION USAGE 🧚

None. 💅

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⭐ RATIONALE ⭐

None. 🌸

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🔥 FUTURE DIRECTIONS 🔥

None. 🌈

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🎀 SEE ALSO 🎀

• strlen()
• The Base Definitions volume of POSIX.1‐2017, <wchar.h>

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💖 COPYRIGHT 💖

okay so legally i have to tell you this and i'm gonna tell you this with love: 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 .

bestie this next bit matters: 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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and that's the whole page, bestie 💅 mwah. this masterpiece of a manpage is brought to you by IEEE/The Open Group, dated 2017, filed under WCSLEN(3POSIX) — go count some wide characters, you ate. 👑💖