Function dirichlet_chi_vec_loop_order 

pub unsafe extern "C" fn dirichlet_chi_vec_loop_order(
    v: *mut mp_limb_t,
    G: *mut dirichlet_group_struct,
    chi: *mut dirichlet_char_struct,
    order: mp_limb_t,
    nv: mp_limb_signed_t,
)