return Addr{u, z}
}

func IPv4(a, b, c, d uint8) Addr { return AddrFrom4([4]byte{a, b, c, d}) }

var TestAppendToMarshal = testAppendToMarshal

func (a Addr) IsZero() bool   { return a.isZero() }
func (p Prefix) IsZero() bool { return p.isZero() }

}

// Now returns the current local time.
func Now() Time {
	return Time{time.Now()}
}

// IsZero returns true if the value is nil or time is zero.
func (t *Time) IsZero() bool {
	if t == nil {
		return true
	}
	return t.Time.IsZero()
}

// Before reports whether the time instant t is before u.
func (t *Time) Before(u *Time) bool {
	if t != nil && u != nil {

}

// NowMicro returns the current local time.
func NowMicro() MicroTime {
	return MicroTime{time.Now()}
}

// IsZero returns true if the value is nil or time is zero.
func (t *MicroTime) IsZero() bool {
	if t == nil {
		return true
	}
	return t.Time.IsZero()
}

// Before reports whether the time instant t is before u.
func (t *MicroTime) Before(u *MicroTime) bool {
	if t != nil && u != nil {

			// skip
		} else if strings.HasSuffix(fi.Name(), ".json") && mode == "on" {
			// Collect reports that are ready for upload.
			reportDate := u.uploadReportDate(fi.Name())
			if !asof.IsZero() && !reportDate.IsZero() {
				// If both the mode asof date and the report date are present, do the
				// right thing...
				//
				// (see https://github.com/golang/go/issues/63142#issuecomment-1734025130)

      auto value = *attr.value_begin<APFloat>();
      return value.isNegative() && value.isInfinity();
    } else if (element_type.isInteger(1)) {
      auto value = *attr.value_begin<APInt>();
      return value.isZero();
    } else {
      auto value = *attr.value_begin<APInt>();
      return element_type.isUnsignedInteger() ? value.isMinValue()
                                              : value.isMinSignedValue();
    }
  }
};

		panic("crypto/ecdh: internal error: nistec ScalarBaseMult returned the identity")
	}
	return &PublicKey{
		curve:     key.curve,
		publicKey: publicKey,
	}
}

// isZero returns whether a is all zeroes in constant time.
func isZero(a []byte) bool {
	var acc byte
	for _, b := range a {
		acc |= b
	}
	return acc == 0
}

// isLess returns whether a < b, where a and b are big-endian buffers of the

		"MustParseAddr",
		"MustParseAddrPort",
		"MustParsePrefix",
		"appendDecimal",
		"appendHex",
		"uint128.addOne",
		"uint128.and",
		"uint128.bitsClearedFrom",
		"uint128.bitsSetFrom",
		"uint128.isZero",
		"uint128.not",
		"uint128.or",
		"uint128.subOne",
		"uint128.xor",
	}
	switch runtime.GOARCH {
	case "amd64", "arm64":
		// These don't inline on 32-bit.
		wantInlinable = append(wantInlinable,

	if err != nil {
		t.Error(err)
		return
	}
	defer f.Close()
	gz, err := NewReader(f)
	if err != nil {
		t.Errorf("cannot read gzip file %s: %s", path, err)
		return
	}
	defer gz.Close()
	if !gz.ModTime.IsZero() {
		t.Errorf("gzip file %s has non-zero mtime (%s)", path, gz.ModTime)
	}

	}
	if mode == 'w' || mode == 'r'+'w' {
		fd.wmu.Lock()
		defer fd.wmu.Unlock()
		if fd.wtimer != nil {
			fd.wtimer.Stop()
			fd.wtimer = nil
		}
		fd.wtimedout = false
	}
	if !t.IsZero() && d > 0 {
		// Interrupt I/O operation once timer has expired
		if mode == 'r' || mode == 'r'+'w' {
			var timer *time.Timer
			timer = time.AfterFunc(d, func() {
				fd.rmu.Lock()
				defer fd.rmu.Unlock()

	time.Time
}

// MarshalXML encodes expiration date if it is non-zero and encodes
// empty string otherwise
func (t DeleteMarkerMTime) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
	if t.Time.IsZero() {
		return nil
	}
	return e.EncodeElement(t.Time.Format(time.RFC3339), startElement)
}

// ObjectV object version key/versionId
type ObjectV struct {
	ObjectName string `xml:"Key"`