__SW_HWEIGHTN - RETURNS THE HAMMING WEIGHT OF A N-BIT WORD(9)

🎀 NAME 🎀

__sw_hweightN — returns the hamming weight of a N-bit word

Ok so bestie, quick vibe check on the name itself: the page header calls this thing __sw_hweight...a N-bit word(9), and that (9) is your lil badge of honor — section 9, the Kernel API Manual. Very main character of it. ✨

🌸 THE ONE ARGUMENT 🌸

• w — the word to weigh 💅

That's literally it. One (1) word, and we're weighing it. Hand it over.

💖 DESCRIPTION 💖

So what even is the Hamming Weight of a number? No cap, it's the total number of bits set in it. That's the whole thing. That's the assignment. 🫶

You give it a word, it counts up all the lil 1s chilling in there, and that's your number. Counting set bits. Iconic behavior honestly. 🌈

Bestie do not come for me for extra details — the page gives you the definition and that's the tea. ☕ Nothing more to spill, and I'm not out here inventing lore.

🦋 SEE ALSO 🦋

• Kernel file ./lib/hweight.c — go read the source, it's giving "fic rec" energy, iykyk 👑

⭐ SIGN-OFF ⭐

This little gem lives in ./lib, and the page is dated October 2026. Consider yourself caught up. Mwah. 💜🎀🧚