WMEMCMP(3P)

💅 PROLOG

ok so bestie, 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 may not be implemented on Linux at all. 🙈 Just a heads up, no cap.

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✨ NAME ✨

wmemcmp — compare wide characters in memory 🧠💖

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🎀 SYNOPSIS 🎀

#include <wchar.h>

int wmemcmp(const wchar_t *ws1, const wchar_t *ws2, size_t n);

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🌸 DESCRIPTION 🌸

So the functionality described on this reference page is aligned with the ISO C standard. If there's any conflict between the requirements described here and the ISO C standard — that's unintentional, fr fr. This volume of POSIX.1‐2017 defers to the ISO C standard. Periodt.

The wmemcmp() function shall compare the first n wide characters of the object pointed to by ws1 to the first n wide characters of the object pointed to by ws2.

Here's the iconic part: this function shall not be affected by locale and all wchar_t values shall be treated identically. The null wide character and wchar_t values that don't correspond to valid characters shall not be treated specially. Like, everyone's equal here, nobody gets special treatment. 👑

If n is zero, the application shall ensure that ws1 and ws2 are valid pointers, and the function shall behave as if the two objects compare equal. (Yes bestie, even with n = 0 you still gotta hand over real pointers, the vibes must be valid. 💀)

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🔥 RETURN VALUE 🔥

wmemcmp() shall return an integer greater than, equal to, or less than zero, respectively, as the object pointed to by ws1 is greater than, equal to, or less than the object pointed to by ws2. It's giving comparison energy, that's literally it. 💅

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💀 ERRORS 💀

No errors are defined. Not a single one. Iconic, honestly.

The following sections are informative. 👇

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🦋 EXAMPLES 🦋

None. (Not me giving you zero examples 😭)

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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 👑

• wmemchr()
• wmemcpy()
• wmemmove()
• wmemset()

The Base Definitions volume of POSIX.1‐2017, <wchar.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. 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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and that's the whole page bestie 🫶 this one's from IEEE/The Open Group, 2017, and yeah it's WMEMCMP(3P) — go forth and compare those wide characters, you got this 💖✨