wcsrchr(3)

💖 wcsrchr(3) — bestie's guide to finding the last wide character 💖

okay so like, this is a page from the Library Functions Manual and it's all about wcsrchr, one of those lil wide-character girlies from <wchar.h>. if you've ever been like "where did that character go LAST" — this is your moment. periodt.

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✨ NAME ✨

wcsrchr — search a wide character in a wide-character string 🦋

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📚 LIBRARY 📚

Standard C library (libc, -lc)

like yeah she lives in the main libc, no extra package needed, she's just there for you 💅

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🌸 SYNOPSIS 🌸

#include <wchar.h>

wchar_t *wcsrchr(const wchar_t *wcs, wchar_t wc);

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🎀 DESCRIPTION 🎀

okay so wcsrchr() is literally the wide-character equivalent of strrchr(3). same energy, wider characters. 🫶

what it does: it searches for the last occurrence of wc in the wide-character string pointed to by wcs. not the first one. the last one. she's a backwards girly, she's looking from the end, iykyk. ✨

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🔥 RETURN VALUE 🔥

• if it finds wc, wcsrchr() returns a pointer to the last occurrence of wc in the wide-character string pointed to by wcs 👑
• if wc does not occur in the string, you get NULL. that's it, that's the whole vibe check 💀 no crash, no drama, just NULL.

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💅 ATTRIBUTES 💅

for an explanation of the terms used in this section, see attributes(7).

• Interface: wcsrchr()
• Attribute: Thread safety
• Value: MT-Safe

so like, multi-thread safe bestie, go off 🧚

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⭐ STANDARDS ⭐

C11, POSIX.1-2008.

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🌈 HISTORY 🌈

POSIX.1-2001, C99.

she's been iconic since forever, no cap.

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👀 SEE ALSO 👀

• strrchr(3) — the narrow-char sibling, same vibe
• wcschr(3) — same but she finds the first one 🌸

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lowkey reminder bestie: wcsrchr finds the last match, wcschr finds the first. don't mix them up, it's giving character-hunting chaos 🙈

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and that's the whole page!! this little gem comes from Linux man-pages 6.20, dated 2026-02-08, and yes the page itself is literally named wcsrchr(3). go forth and find your last wide character, you absolute main character 💖✨🦋