const (
	// Header is a generic XML header suitable for use with the output of [Marshal].
	// This is not automatically added to any output of this package,
	// it is provided as a convenience.
	Header = `<?xml version="1.0" encoding="UTF-8"?>` + "\n"
)

// Marshal returns the XML encoding of v.
//
// Marshal handles an array or slice by marshaling each of the elements.
// Marshal handles a pointer by marshaling the value it points at or, if the

		tag = *params.tag
	}

	t.tag = bytesEncoder(appendTagAndLength(t.scratch[:0], tagAndLength{class, tag, bodyLen, isCompound}))

	return t, nil
}

// Marshal returns the ASN.1 encoding of val.
//
// In addition to the struct tags recognized by Unmarshal, the following can be
// used:
//
//	ia5:         causes strings to be marshaled as ASN.1, IA5String values
//	omitempty:   causes empty slices to be skipped

		var f float64
		for pb.Next() {
			if err := Unmarshal(data, &f); err != nil {
				b.Fatalf("Unmarshal error: %v", err)
			}
		}
	})
}

func BenchmarkUnmarshalInt64(b *testing.B) {
	b.ReportAllocs()
	data := []byte(`3`)
	b.RunParallel(func(pb *testing.PB) {
		var x int64
		for pb.Next() {
			if err := Unmarshal(data, &x); err != nil {
				b.Fatalf("Unmarshal error: %v", err)
			}
		}
	})
}

	for _, c := range cases {
		input := c.input
		data, err := input.Marshal()
		if err != nil {
			t.Fatalf("Failed to marshal input: '%v': %v", input, err)
		}
		time := MicroTime{}
		if err := time.Unmarshal(data); err != nil {
			t.Fatalf("Failed to unmarshal output: '%v': %v", input, err)
		}
		if !reflect.DeepEqual(input, time) {
			t.Errorf("Marshal->Unmarshal is not idempotent: '%v' vs '%v'", input, time)
		}
	}
}

		t.Errorf("IsOnCurve(∞) == true")
	}

	if xx, yy := Unmarshal(curve, Marshal(curve, x0, y0)); xx != nil || yy != nil {
		t.Errorf("Unmarshal(Marshal(∞)) did not return an error")
	}
	// We don't test UnmarshalCompressed(MarshalCompressed(∞)) because there are
	// two valid points with x = 0.
	if xx, yy := Unmarshal(curve, []byte{0x00}); xx != nil || yy != nil {
		t.Errorf("Unmarshal(∞) did not return an error")
	}

	// a, b, c, aa, bb, cc

	output, err := Marshal(testStruct)
	if err != nil {
		t.Errorf("%v", err)
	}

	expectedOrder := []string{"a", "b", "c", "aa", "bb", "cc"}
	var resultStruct struct {
		Strings []string `asn1:"set"`
	}
	rest, err := Unmarshal(output, &resultStruct)
	if err != nil {
		t.Errorf("%v", err)
	}
	if len(rest) != 0 {
		t.Error("Unmarshal returned extra garbage")
	}

	if m == nil {
		return "{}"
	}

	ba, err := json.Marshal(m)
	if err != nil {
		log.Warnf("Unable to marshal %v", m)
		return "{}"
	}

	return string(ba)
}

func fromJSON(j string) any {
	var m any
	err := json.Unmarshal([]byte(j), &m)
	if err != nil {
		log.Warnf("Unable to unmarshal %s", j)
		return "{}"
	}

	return m
}

	case *map[string]interface{}:
		if err := yaml.Unmarshal(data, v, preserveIntFloat); err != nil {
			return err
		}
		return jsonutil.ConvertMapNumbers(*v, 0)
	case *[]interface{}:
		if err := yaml.Unmarshal(data, v, preserveIntFloat); err != nil {
			return err
		}
		return jsonutil.ConvertSliceNumbers(*v, 0)
	case *interface{}:
		if err := yaml.Unmarshal(data, v, preserveIntFloat); err != nil {
			return err
		}

	err := Unmarshal([]byte(want), &data)
	if err != nil {
		t.Fatalf("Unmarshal error: %v", err)
	}
	if string([]byte(data.Id)) != raw {
		t.Fatalf("Unmarshal:\n\tgot:  %s\n\twant: %s", []byte(data.Id), raw)
	}
	got, err := Marshal(&data)
	if err != nil {
		t.Fatalf("Marshal error: %v", err)
	}
	if string(got) != want {
		t.Fatalf("Marshal:\n\tgot:  %s\n\twant: %s", got, want)
	}
}

// the JSON being the JSON literal null. In that case, Unmarshal sets
// the pointer to nil. Otherwise, Unmarshal unmarshals the JSON into
// the value pointed at by the pointer. If the pointer is nil, Unmarshal
// allocates a new value for it to point to.
//
// To unmarshal JSON into a value implementing [Unmarshaler],
// Unmarshal calls that value's [Unmarshaler.UnmarshalJSON] method, including
// when the input is a JSON null.