umult64(3)

💖 umult64(3) — like, the manual page bestie 💖

okay so we're in the Library Functions Manual section of the docs, and today's main character is umult64(3) — it's giving "multiply two numbers but make it safe" energy and honestly? iconic. 🫶

✨ NAME ✨

umult64 — integer multiplication, but with overflow checking, because we do NOT do silent chaos here 💅

🦋 SYNTAX 🦋

#include <libowfat/safemult.h>

int umult64(uint64 a,uint64 b,uint64* c);

🌸 DESCRIPTION 🌸

so here's the tea, bestie: umult64 does c=a*b and returns 1. that's it. that's the whole vibe. ✨

but in case of an integer overflow, it just… leaves c alone 😌 and returns 0. no touching, no overwriting, no mess. it's literally the most respectful function in the whole library fr fr.

lowkey important: if it returns 0, your c is untouched — so don't go reading it like it's fresh data, because it's not. 🚫

👑 SEE ALSO 👑

• imult16(3)
• imult32(3)
• imult64(3)

the whole multiply-safely squad, go say hi 💜

and that's the page!! this little cutie lives in the Library Functions Manual, filed under umult64(3) — mwah, no cap, go multiply responsibly 🎀💖✨