Function antic::_fmpz_poly_gcd_heuristic

pub unsafe extern "C" fn _fmpz_poly_gcd_heuristic(
    res: *mut fmpz, 
    poly1: *const fmpz, 
    len1: mp_limb_signed_t, 
    poly2: *const fmpz, 
    len2: mp_limb_signed_t
) -> c_int