Russ Cox <******@****.***> 1410149331 -0400

	}
	f64, err1 := strconv.ParseFloat(s, 32)
	f1 := float32(f64)
	if err1 != nil {
		return 0, false
	}
	return f1, true
}

func TestFp(t *testing.T) {
	f, err := os.Open("testdata/testfp.txt")
	if err != nil {
		t.Fatal("testfp: open testdata/testfp.txt:", err)
	}
	defer f.Close()

	s := bufio.NewScanner(f)

	for lineno := 1; s.Scan(); lineno++ {
		line := s.Text()

	{"64Fixed2", 123.456, 'e', 3, 64},
	{"64Fixed3", 1.23456e+78, 'e', 3, 64},
	{"64Fixed4", 1.23456e-78, 'e', 3, 64},
	{"64Fixed12", 1.23456e-78, 'e', 12, 64},
	{"64Fixed16", 1.23456e-78, 'e', 16, 64},
	// From testdata/testfp.txt
	{"64Fixed12Hard", math.Ldexp(6965949469487146, -249), 'e', 12, 64},
	{"64Fixed17Hard", math.Ldexp(8887055249355788, 665), 'e', 17, 64},
	{"64Fixed18Hard", math.Ldexp(6994187472632449, 690), 'e', 18, 64},

	expectFalse(t, fmt.Sprintf("%v==%v", a, b), c2)
	expectFalse(t, fmt.Sprintf("%v!=%v", a, a), c3)
	expectTrue(t, fmt.Sprintf("%v!=%v", a, b), c4)
}

// TestFP tests that we get the right answer for floating point expressions.
func TestFP(t *testing.T) {
	a := 3.0
	b := 4.0

	c := float32(3.0)
	d := float32(4.0)

	tiny := float32(1.5e-45) // smallest f32 denorm = 2**(-149)

	}
}

// Test inputs to Rat.SetString. The prefix "long:" causes the test
// to be skipped except in -long mode.  (The threshold is about 500us.)
var float64inputs = []string{
	// Constants plundered from strconv/testfp.txt.

	// Table 1: Stress Inputs for Conversion to 53-bit Binary, < 1/2 ULP
	"5e+125",
	"69e+267",
	"999e-026",
	"7861e-034",
	"75569e-254",
	"928609e-261",
	"9210917e+080",
	"84863171e+114",