i := new(big.Int)
	_, err := fmt.Sscan("18446744073709551617", i)
	if err != nil {
		log.Println("error scanning value:", err)
	} else {
		fmt.Println(i)
	}
	// Output: 18446744073709551617
}

func ExampleFloat_Scan() {
	// The Scan function is rarely used directly;
	// the fmt package recognizes it as an implementation of fmt.Scanner.
	f := new(big.Float)
	_, err := fmt.Sscan("1.19282e99", f)
	if err != nil {