operands := []float64{2.6, 2.5, 2.1, -2.1, -2.5, -2.6}

	fmt.Print("   x")
	for mode := big.ToNearestEven; mode <= big.ToPositiveInf; mode++ {
		fmt.Printf("  %s", mode)
	}
	fmt.Println()

	for _, f64 := range operands {
		fmt.Printf("%4g", f64)
		for mode := big.ToNearestEven; mode <= big.ToPositiveInf; mode++ {
			// sample operands above require 2 bits to represent mantissa

	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[ToNearestEven-0]
	_ = x[ToNearestAway-1]
	_ = x[ToZero-2]
	_ = x[AwayFromZero-3]
	_ = x[ToNegativeInf-4]
	_ = x[ToPositiveInf-5]
}

const _RoundingMode_name = "ToNearestEvenToNearestAwayToZeroAwayFromZeroToNegativeInfToPositiveInf"

var _RoundingMode_index = [...]uint8{0, 13, 26, 32, 44, 57, 70}

func (i RoundingMode) String() string {

		for _, sign := range []string{"", "+", "-"} {
			for _, prec := range []uint{0, 1, 2, 10, 53, 64, 100, 1000} {
				for _, mode := range []RoundingMode{ToNearestEven, ToNearestAway, ToZero, AwayFromZero, ToNegativeInf, ToPositiveInf} {
					medium.Reset() // empty buffer for each test case (in case of failures)
					x := sign + test

					var tx Float
					_, _, err := tx.SetPrec(prec).SetMode(mode).Parse(x, 0)
					if err != nil {

		{"8191.53125", ToNegativeInf, 53, 'x', 4, "0x1.fff8p+12"},
		{"-8191.53125", ToNegativeInf, 53, 'x', 4, "-0x1.fff9p+12"},
		{"8191.53125", ToPositiveInf, 53, 'x', 4, "0x1.fff9p+12"},
		{"-8191.53125", ToPositiveInf, 53, 'x', 4, "-0x1.fff8p+12"},

		// issue 34343
		{"0x.8p-2147483648", ToNearestEven, 4, 'p', -1, "0x.8p-2147483648"},

		testFloatRound(t, x, a, prec, AwayFromZero)

		testFloatRound(t, x, z, prec, ToNegativeInf)
		testFloatRound(t, x, a, prec, ToPositiveInf)

		testFloatRound(t, -x, -a, prec, ToNegativeInf)
		testFloatRound(t, -x, -z, prec, ToPositiveInf)
	}
}

// TestFloatRound24 tests that rounding a float64 to 24 bits
// matches IEEE 754 rounding to nearest when converting a

	ToZero                            // == IEEE 754-2008 roundTowardZero
	AwayFromZero                      // no IEEE 754-2008 equivalent
	ToNegativeInf                     // == IEEE 754-2008 roundTowardNegative
	ToPositiveInf                     // == IEEE 754-2008 roundTowardPositive
)

//go:generate stringer -type=RoundingMode

// Accuracy describes the rounding error produced by the most recent

pkg math/big, const ToNearestEven = 0
pkg math/big, const ToNearestEven RoundingMode
pkg math/big, const ToNegativeInf = 4
pkg math/big, const ToNegativeInf RoundingMode
pkg math/big, const ToPositiveInf = 5
pkg math/big, const ToPositiveInf RoundingMode
pkg math/big, const ToZero = 2
pkg math/big, const ToZero RoundingMode
pkg math/big, func Jacobi(*Int, *Int) int
pkg math/big, func NewFloat(float64) *Float

		{"NewRat", Func, 0},
		{"ParseFloat", Func, 5},
		{"Rat", Type, 0},
		{"RoundingMode", Type, 5},
		{"ToNearestAway", Const, 5},
		{"ToNearestEven", Const, 5},
		{"ToNegativeInf", Const, 5},
		{"ToPositiveInf", Const, 5},
		{"ToZero", Const, 5},
		{"Word", Type, 0},
	},
	"math/bits": {
		{"Add", Func, 12},
		{"Add32", Func, 12},
		{"Add64", Func, 12},
		{"Div", Func, 12},
		{"Div32", Func, 12},