Function bitwise::word::parity

pub fn parity<T: Word>(x: T) -> T

Number of set bits in x mod 2; i.e. 1 if the number of set bits in x is odd, zero otherwise

Intrinsics:

-gcc/llvm: __builtin_parity(x).

Examples

use bitwise::word::*;

let n0 = 0b0000;  // 0 -> even => parity = 0
let n1 = 0b0001;  // 1 -> odd  => partiy = 1
let n2 = 0b0010;  // 1 -> odd  => parity = 1
let n3 = 0b0011;  // 2 -> even => parity = 0

assert_eq!(n0.parity(), 0);
assert_eq!(n1.parity(), 1);
assert_eq!(n2.parity(), 1);
assert_eq!(n3.parity(), 0);
assert_eq!(parity(n2), 1);