Method next

crates/table/src/fixed_bit_set.rs:304–319

(&mut self)

    type Item = usize;

    fn next(&mut self) -> Option<Self::Item> {
        loop {
            let tz = self.curr.trailing_zeros();
            if tz < B::BITS {
                // Some bit was set; so yield the index of that
                // and zero the bit out so we don't yield it again.
                self.curr &= self.curr.wrapping_sub(B::ONE);
                let idx = self.block_idx as u32 * B::BITS + tz;
                return Some(idx as usize);
            } else {
                // No bit is set; advance to the next block, or quit if none left.
                self.curr = *self.inner.next()?;
                self.block_idx += 1;
            }
        }
    }
}

#[cfg(test)]