9     n: usize,  field
25     pub(crate) fn new(n: usize) -> Self {  in new()
26         let mut chunk_size = (n + 63) / 64;  in new()
33             n,  in new()
34             msb_mask: if n % 64 == 0 {  in new()
37                 (1 << (64 - n % 64)) - 1  in new()
43     pub(crate) fn lsh(&mut self, n: usize) {  in lsh()
44         if n == 0 {  in lsh()
47         let n_chunk = (n / 64) as isize;  in lsh()
48         let n_n = n % 64;  in lsh()
66             self.bits[i as usize] = if n >= 64 {  in lsh()
69                 (self.bits[i as usize] << n) | carry  in lsh()
79         if i >= self.n {  in bit()
89         if i >= self.n {  in set_bit()