}

// CanFloat reports whether [Value.Float] can be used without panicking.
func (v Value) CanFloat() bool {
	switch v.kind() {
	case Float32, Float64:
		return true
	default:
		return false
	}
}

// Float returns v's underlying value, as a float64.
// It panics if v's Kind is not [Float32] or [Float64]
func (v Value) Float() float64 {
	k := v.kind()
	switch k {
	case Float32:

		{s: 2, d: &scanbool, wanterr: `sql/driver: couldn't convert 2 into type bool`},

		// Floats
		{s: float64(1.5), d: &scanf64, wantf64: float64(1.5)},
		{s: int64(1), d: &scanf64, wantf64: float64(1)},
		{s: float64(1.5), d: &scanf32, wantf32: float32(1.5)},
		{s: "1.5", d: &scanf32, wantf32: float32(1.5)},
		{s: "1.5", d: &scanf64, wantf64: float64(1.5)},

		// Pointers
		{s: any(nil), d: &scanptr, wantnil: true},

    "'h_scale' type: 'float'} attr : { name: 'max_classes_per_detection' "
    "type: 'int'} attr : { name: 'max_detections' type: 'int'} attr : { "
    "name: 'nms_iou_threshold' type: 'float'} attr : { name: "
    "'nms_score_threshold' type: 'float'} attr : { name: 'num_classes' type: "
    "'int'} attr : { name: 'w_scale' type: 'float'} attr : { name: 'x_scale' "
    "type: 'float'} attr : { name: 'y_scale' type: 'float'} attr { name: "

	float32(0.45059562),  // Float32()
	float32(0.86597633),  // Float32()
	float32(0.8954844),   // Float32()
	float32(0.090798736), // Float32()
	float32(0.46218646),  // Float32()
	float32(0.5955118),   // Float32()
	float32(0.08985227),  // Float32()
	float32(0.19820237),  // Float32()
	float32(0.7443699),   // Float32()
	float32(0.56461),     // Float32()

	float64(0.6764556596678251),  // Float64()

	{"complex", `_ = complex(1, 0)`, `invalid type`}, // constant
	{"complex", `var re float32; _ = complex(re, 1.0)`, `func(float32, float32) complex64`},
	{"complex", `var im float64; _ = complex(1, im)`, `func(float64, float64) complex128`},
	{"complex", `type F32 float32; var re, im F32; _ = complex(re, im)`, `func(p.F32, p.F32) complex64`},
	{"complex", `type F64 float64; var re, im F64; _ = complex(re, im)`, `func(p.F64, p.F64) complex128`},

		opname        rune
		op            func(z, x, y *Float) *Float
	}{
		{0, 0, 0, 0, '+', (*Float).Add},
		{0, 1, 2, 3, '+', (*Float).Add},
		{1, 2, 0, 2, '+', (*Float).Add},
		{2, 0, 1, 1, '+', (*Float).Add},

		{0, 0, 0, 0, '-', (*Float).Sub},
		{0, 1, 2, -1, '-', (*Float).Sub},
		{1, 2, 0, 2, '-', (*Float).Sub},
		{2, 0, 1, -1, '-', (*Float).Sub},

		{0, 0, 0, 0, '*', (*Float).Mul},
		{0, 1, 2, 2, '*', (*Float).Mul},

// to the decoded value.
func (z *Float) GobDecode(buf []byte) error {
	if len(buf) == 0 {
		// Other side sent a nil or default value.
		*z = Float{}
		return nil
	}
	if len(buf) < 6 {
		return errors.New("Float.GobDecode: buffer too small")
	}

	if buf[0] != floatGobVersion {
		return fmt.Errorf("Float.GobDecode: encoding version %d not supported", buf[0])
	}

	oldPrec := z.prec

	// The sharp flag has no effect for binary float format.
	{"%#b", 1.0, "4503599627370496p-52"},
	// Precision has no effect for binary float format.
	{"%.4b", float32(1.0), "8388608p-23"},
	{"%.4b", -1.0, "-4503599627370496p-52"},
	// Test correct f.intbuf boundary checks.
	{"%.68f", 1.0, zeroFill("1.", 68, "")},
	{"%.68f", -1.0, zeroFill("-1.", 68, "")},
	// float infinites and NaNs
	{"%f", posInf, "+Inf"},

func initNorm() (testKn []uint32, testWn, testFn []float32) {
	const m1 = 1 << 31
	var (
		dn float64 = rn
		tn         = dn
		vn float64 = 9.91256303526217e-3
	)

	testKn = make([]uint32, 128)
	testWn = make([]float32, 128)
	testFn = make([]float32, 128)

	q := vn / math.Exp(-0.5*dn*dn)
	testKn[0] = uint32((dn / q) * m1)
	testKn[1] = 0
	testWn[0] = float32(q / m1)
	testWn[127] = float32(dn / m1)

}

func (v *Int) Set(value int64) {
	v.i.Store(value)
}

// Float is a 64-bit float variable that satisfies the [Var] interface.
type Float struct {
	f atomic.Uint64
}

func (v *Float) Value() float64 {
	return math.Float64frombits(v.f.Load())
}

func (v *Float) String() string {
	return string(v.appendJSON(nil))
}

func (v *Float) appendJSON(b []byte) []byte {