// polynomial. The table is suitable for use with the simple algorithm
// (simpleUpdate).
func simpleMakeTable(poly uint32) *Table {
	t := new(Table)
	simplePopulateTable(poly, t)
	return t
}

// simplePopulateTable constructs a Table for the specified polynomial, suitable
// for use with simpleUpdate.
func simplePopulateTable(poly uint32, t *Table) {
	for i := 0; i < 256; i++ {
		crc := uint32(i)

func (e *Etcd) tryUpdate(fn func() error) error {
	err := e.storage.GuaranteedUpdate(context.TODO(), e.baseKey, &api.RangeAllocation{}, true, nil,
		storage.SimpleUpdate(func(input runtime.Object) (output runtime.Object, err error) {
			existing := input.(*api.RangeAllocation)
			if len(existing.ResourceVersion) == 0 {

	"k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime"
)

type SimpleUpdateFunc func(runtime.Object) (runtime.Object, error)

// SimpleUpdateFunc converts SimpleUpdateFunc into UpdateFunc
func SimpleUpdate(fn SimpleUpdateFunc) UpdateFunc {
	return func(input runtime.Object, _ ResponseMeta) (runtime.Object, *uint64, error) {
		out, err := fn(input)
		return out, nil, err
	}
}

		out := r.Store.NewFunc()
		err = r.Store.Storage.GuaranteedUpdate(
			ctx, key, out, false, &preconditions,
			storage.SimpleUpdate(func(existing runtime.Object) (runtime.Object, error) {
				existingCRD, ok := existing.(*apiextensions.CustomResourceDefinition)
				if !ok {
					// wrong type

		return updateCastagnoli(crc, p)
	case tab == IEEETable:
		if checkInitIEEE {
			ieeeOnce.Do(ieeeInit)
		}
		return updateIEEE(crc, p)
	default:
		return simpleUpdate(crc, tab, p)
	}
}

// Update returns the result of adding the bytes in p to the crc.
func Update(crc uint32, tab *Table, p []byte) uint32 {