memeq(3)

🎀 memeq — like, are these two blobs of memory the same or not bestie 💖

okay so real talk, this is memeq from section 3 of the manual (Library Functions Manual, iykyk), and the whole entire job is "memory equal" ✨. that's it. that's the function. lowkey iconic for how unbothered it is 💅

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💜 LIBRARY 💜

gnulib — The GNU Portability Library 🧚 bestie lives in gnulib, so your code stays slay across every platform no cap

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✨ SYNOPSIS ✨

#include <string.h>  // see memory.h(3head)

bool memeq(const void *m1, const void *m2, size_t n);

🫶 heads up: that comment is literally telling you to go peek at memory.h(3head) if you want the whole lore

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🌸 DESCRIPTION 🌸

okay so here's the vibe: memeq() figures out whether the first n bytes of the memory areas pointed to by m1 and m2 are equal. like, byte-for-byte. that's the entire plot 🍓

no drama, no surprises, just a straight-up comparison. the way that it's just doing its one job? obsessed 💖

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🔥 RETURN VALUE 🔥

memeq() returns true if and only if the first n bytes of the memory areas pointed to by m1 and m2 are equal.

and bestie, notice the "if and only if" — that's a two-way street. equal bytes → true. not equal → not true. no in-between, no maybes, no "it depends" 💀 periodt.

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👑 ATTRIBUTES 👑

if you want the full breakdown of what these words even mean, go read attributes(7) — it's the glossary, trust.

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

so yeah, she's MT-Safe — multiple threads can run her at the same time and she won't start anything. we love a drama-free queen 👑

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🌈 STANDARDS 🌈

GNU. 🐃 that's the standard. that's the whole standard.

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🦋 HISTORY 🦋

came into this world in gnulib 202601. a whole era ✨

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💫 SEE ALSO 💫

• string(3) — go read it, your honor 🫶

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and that's the whole page bestie, mwah 💅

this little love letter to memeq(3) came to you from Linux man-pages 6.20, dated 2026-08-10 🌸 stay portable, stay MT-Safe, drink water 💖🧚‍♀️