MEMRMEM(3pub)

📦 version 0.40, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 MEMRMEM 💖 (it's a 3pub page, from the C Programmer's Manual bestie)

okay so listen. you know how you can search a string for the last time something shows up? yeah. this is that, but for raw memory blocks. no strings attached, literally, it's void * and size_t and vibes only. it lives in publib and it is lowkey iconic. 🦋

✨ NAME ✨

memrmem — find the last occurrence of a memory block within another memory block. yes the r stands for reverse-ish energy. we're going backwards, bestie. 🔥

🌸 SYNOPSIS 🌸

#include <publib.h>
void *memrmem(const void *v, size_t size,
                const void *pat, size_t patsize);

like. look at her. four args, no drama. 💅

🎀 DESCRIPTION 🎀

memrmem finds the last occurrence of memory block pat within memory block v.

that's it. that's the whole thing. it's giving "I do one job and I do it flawlessly". no cap. 🫶

⭐ RETURN VALUE ⭐

memrmem returns a pointer to the first byte of the match, if it finds any. if there are no matches, you get a null pointer. so like. check it. always check it. NULL is not a personality trait, it's a warning. 😭

👑 SEE ALSO 👑

go read those too, they're the extended universe. iykyk. 💜

🧚 AUTHOR 🧚

Lars Wirzenius</p> (lars.wirzenius@helsinki.fi)

the man himself. we stan. 🌈

okay that's the whole page, bestie, you ate it. this was MEMRMEM(3pub) from the C Programmer's Manual, brought to you by Publib 💖 — no date on this one, so consider it timeless, like a little black dress but for syscalls. mwah. 🎀✨

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