Function antic::_fmpz_poly_num_real_roots_sturm

pub unsafe extern "C" fn _fmpz_poly_num_real_roots_sturm(
    n_neg: *mut mp_limb_signed_t, 
    n_pos: *mut mp_limb_signed_t, 
    pol: *const fmpz, 
    len: mp_limb_signed_t
)