memchr_inv(9)

🌸 memchr_inv — Kernel API Manual 🌸

okay bestie, welcome to the memchr_inv(9) page 💅 this is the kernel API manual vibe, and we're about to find the one character that is not like the others. periodt.

✨ NAME ✨

memchr_inv — find an unmatching character in an area of memory. lowkey iconic.

🦋 SYNOPSIS 🦋

void * memchr_inv (const void *start , int c , size_t bytes );

🎀 ARGUMENTS 🎀

• start — the memory area. like, the buffer we're checking out 👀
• c — find a character other than c. yep, we're looking for the odd one out 💅
• bytes — the size of the area. how many bytes we get to search, no cap.

🔥 DESCRIPTION 🔥

returns the address of the first character other than c, or NULL if the whole buffer contains just c. that's the whole plot twist 😭

🌈 SEE ALSO 🌈

Kernel file ./tools/lib/string.c — and the whole squad: memdup(9), strtobool(9), strlcpy(9), skip_spaces(9), strim(9), strreplace(9). iykyk 💖

okay that's the whole page, bestie! 🫶 source/version info: ./tools/lib · date: October 2026 · page: memchr_inv(9) — mwah 💋