Notes/notes-service/vendor/bitvec/doc/slice/iter/IterOnes.md

Bit Seeking

This iterator yields indices of bits set to 1, rather than bit-values themselves. It is essentially the inverse of indexing: rather than applying a usize to the bit-slice to get a bool, this applies a bool to get a usize.

It is created by the .iter_ones() method on bit-slices.

Examples

use bitvec::prelude::*;

let bits = bits![0, 1, 0, 0, 1];
let mut ones = bits.iter_ones();

assert_eq!(ones.next(), Some(1));
assert_eq!(ones.next(), Some(4));
assert!(ones.next().is_none());