{in: "4/3."},
	{in: "4/"},
	{in: "13e-9223372036854775808"}, // CVE-2022-23772

	// valid
	{"0", "0", true},
	{"-0", "0", true},
	{"1", "1", true},
	{"-1", "-1", true},
	{"1.", "1", true},
	{"1e0", "1", true},
	{"1.e1", "10", true},
	{"-0.1", "-1/10", true},
	{"-.1", "-1/10", true},
	{"2/4", "1/2", true},
	{".25", "1/4", true},
	{"-1/5", "-1/5", true},
	{"8129567.7690E14", "812956776900000000000", true},

		{token.FLOAT, "0x.0", "0x.0", "hexadecimal mantissa requires a 'p' exponent"},
		{token.FLOAT, "0x1.1", "0x1.1", "hexadecimal mantissa requires a 'p' exponent"},
		{token.FLOAT, "0x1.1e0", "0x1.1e0", "hexadecimal mantissa requires a 'p' exponent"},
		{token.FLOAT, "0x1.2gp1a", "0x1.2 gp1a", "hexadecimal mantissa requires a 'p' exponent"},
		{token.FLOAT, "0x0p", "0x0p", "exponent has no digits"},

		got := string(fibo(n).utoa(10))
		if got != want {
			t.Errorf("fibo(%d) failed: got %s want %s", n, got, want)
		}
	}
}

func BenchmarkFibo(b *testing.B) {
	for i := 0; i < b.N; i++ {
		fibo(1e0)
		fibo(1e1)
		fibo(1e2)
		fibo(1e3)
		fibo(1e4)
		fibo(1e5)
	}
}

var bitTests = []struct {
	x    string
	i    uint
	want uint
}{
	{"0", 0, 0},
	{"0", 1, 0},

	0x2b800000, 0x2b8000b0, 0x2bf00000, 0x2bf0009c,
	0x2bf0009d, 0x2c000000, 0x2c0000b7, 0x2c200000,
	0x2c20004b, 0x2c400000, 0x2c4000a5, 0x2c500000,
	0x2c5000a5, 0x2c700000, 0x2c7000b9, 0x2d100000,
	// Entry 1E0 - 1FF
	0x2d1000a5, 0x2d100130, 0x2e900000, 0x2e9000a5,
	0x2ed00000, 0x2ed000cd, 0x2f100000, 0x2f1000c0,
	0x2f200000, 0x2f2000d2, 0x2f400000, 0x2f400052,
	0x2ff00000, 0x2ff000c3, 0x30400000, 0x3040009a,