pub unsafe extern "C" fn dirichlet_vec_set_null(
v: *mut mp_limb_t,
G: *mut dirichlet_group_struct,
nv: mp_limb_signed_t,
)pub unsafe extern "C" fn dirichlet_vec_set_null(
v: *mut mp_limb_t,
G: *mut dirichlet_group_struct,
nv: mp_limb_signed_t,
)