util_parity(3avr)

💖 util_parity — bestie edition 💖

okay so this is a page from the AVR-LibC manual, and we're talking about util_parity, which lives over in <util/parity.h> and is ALL about generating parity bits. yes. parity. the vibe check for your bytes. let's get into it 🦋

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✨ NAME ✨

util_parity — <util/parity.h>: Parity bit generation 🎀

like. that's it. that's the whole thing. it makes parity bits. iconic behavior honestly.

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✨ SYNOPSIS ✨

Functions

• static uint8_t parity_even_bit (uint8_t __val)

that's the one and only function, bestie. one job. one function. she's focused. 💅

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✨ Detailed Description ✨

first things first, you gotta pull in the header:

#include <util/parity.h>

so what's actually in there?? this header file contains optimized assembler code to calculate the parity bit for a byte. ✨

not me being obsessed with a header that's literally hand-optimized assembly. the way that it's optimized assembler and not just some cute little loop. she's fast. she's lean. she's doing the MOST in the best way. 🔥

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✨ Function Documentation ✨

uint8_t parity_even_bit (uint8_t val) [inline], [static]

okay so this is the function, and yes she's inline and yes she's static. noted. documented. slay.

Returns

1 if val has an odd number of bits set, and 0 otherwise.

so like — count the bits. odd amount of bits set?? you get a 1. even amount?? you get a 0. iykyk. that's the entire personality of this function and honestly?? respect. no notes. 🙈

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✨ Author ✨

Generated automatically by Doxygen for AVR-LibC from the source code.

so nobody hand-wrote this bad boy — Doxygen did. she's literally generated. main character energy by accident. 💀

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🫶 the sign-off 🫶

okay bestie that's the whole page, no cap. this came out of the AVR-LibC manual, Version 2.2.1, and it's filed under util_parity(3avr). go forth and calculate those parity bits. periodt. 💖✨🎀🦋🌸