Addrs     int32
	Flags     int32
	Metric    int32
	Index     uint16
	Pad_cgo_0 [6]byte
}

type IfAnnounceMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Index   uint16
	Name    [16]int8
	What    uint16
}

type RtMsghdr struct {
	Msglen    uint16
	Version   uint8
	Type      uint8
	Index     uint16
	Pad_cgo_0 [2]byte
	Flags     int32
	Addrs     int32

	if attrs&syscall.RTA_IFP == 0 {
		return nil, nil
	}
	m := &InterfaceMessage{
		Version: int(b[2]),
		Type:    int(b[3]),
		Flags:   int(nativeEndian.Uint32(b[16:20])),
		Index:   int(nativeEndian.Uint16(b[6:8])),
		Addrs:   make([]Addr, syscall.RTAX_MAX),
		raw:     b[:l],
	}
	ll := int(nativeEndian.Uint16(b[4:6]))
	if len(b) < ll {
		return nil, errInvalidMessage
	}

	Type    uint8
	Addrs   int32
	Flags   int32
	Index   uint16
	_       uint16
	Metric  int32
}

type IfmaMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Addrs   int32
	Flags   int32
	Index   uint16
	_       uint16
}

type IfAnnounceMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Index   uint16
	Name    [16]int8
	What    uint16
}

}

// walkFromIndex matches packages in a module using the module index. modroot
// is the module's root directory on disk, index is the modindex.Module for the
// module, and importPathRoot is the module's path prefix.
func walkFromIndex(index *modindex.Module, importPathRoot string, isMatch, treeCanMatch func(string) bool, tags, have map[string]bool, addPkg func(string)) {
	index.Walk(func(reldir string) {

type IfaMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Hdrlen  uint16
	Index   uint16
	Tableid uint16
	Pad1    uint8
	Pad2    uint8
	Addrs   int32
	Flags   int32
	Metric  int32
}

type IfAnnounceMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Hdrlen  uint16
	Index   uint16
	What    uint16
	Name    [16]int8
}

type RtMsghdr struct {

	Addrs     int32
	Flags     int32
	Metric    int32
	Index     uint16
	Pad_cgo_0 [6]byte
}

type IfAnnounceMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Index   uint16
	Name    [16]int8
	What    uint16
}

type RtMsghdr struct {
	Msglen    uint16
	Version   uint8
	Type      uint8
	Index     uint16
	Pad_cgo_0 [2]byte
	Flags     int32
	Addrs     int32

	return func(h *dependency) {
		h.filter.selects = lbls
	}
}

// FilterIndex selects only objects matching a key in an index.
func FilterIndex[I any, K comparable](idx *Index[I, K], k K) FetchOption {
	return func(h *dependency) {
		// Index is used to pre-filter on the List, and also to match in Matches. Provide type-erased methods for both
		h.filter.listFromIndex = func() any {
			return idx.Lookup(k)
		}

	Type    uint8
	Addrs   int32
	Flags   int32
	Index   uint16
	_       uint16
	Metric  int32
}

type IfmaMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Addrs   int32
	Flags   int32
	Index   uint16
	_       uint16
}

type IfAnnounceMsghdr struct {
	Msglen  uint16
	Version uint8
	Type    uint8
	Index   uint16
	Name    [16]int8
	What    uint16
}

	index int         // The index of the object's key in the Heap.queue.
}

type itemKeyValue struct {
	key string
	obj interface{}
}

// data is an internal struct that implements the standard heap interface
// and keeps the data stored in the heap.
type data struct {
	// items is a map from key of the objects to the objects and their index.

	offsetS390xHasVX = unsafe.Offsetof(cpu.S390X.HasVX)

	offsetPPC64HasPOWER9 = unsafe.Offsetof(cpu.PPC64.IsPOWER9)
)

// MaxLen is the maximum length of the string to be searched for (argument b) in Index.
// If MaxLen is not 0, make sure MaxLen >= 4.
var MaxLen int

// PrimeRK is the prime base used in Rabin-Karp algorithm.
const PrimeRK = 16777619

// HashStr returns the hash and the appropriate multiplicative