if err != nil {
		return err
	}
	x.ClientConversation = x.Client.NewConversation()
	return nil
}

// Step takes a string provided from a server (or just an empty string for the
// very first conversation step) and attempts to move the authentication
// conversation forward.  It returns a string to be sent to the server or an
// error if the server message is invalid.  Calling Step after a conversation

			}
			if skip != 0 || sn != 0 || ps != 0 || o != 0 || l != getEncSize(test.decSz) {
				t.Errorf("Case %d: test failed: %d %d %d %d %d", i, o, l, skip, sn, ps)
			}
		}

		if test.decSz >= 10 {
			// first 10 bytes
			o, l, skip, sn, ps, err := test.oi.GetDecryptedRange(&HTTPRangeSpec{false, 0, 9})
			if err != nil {
				t.Errorf("Case %d: unexpected err: %v", i, err)
			}
			rLen := pkgSz + 32

// assumed to be numeric. Attempts conversion to numeric type for `a`
// (first int, then float) only if the underlying values do not have a
// type.
func (v *Value) minmax(a *Value, isMax, isFirstRow bool) error {
	err := inferTypeForArithOp(a)
	if err != nil {
		return err
	}

	if !a.isNumeric() {
		return errArithMismatchedTypes
	}

	// In case of first row, set v to a.
	if isFirstRow {
		intA, okI := a.ToInt()

	}{
		// request for byte range 10-11.
		// expecting the result to contain only putContent[10:12] bytes.
		{"10-11", putContent[10:12]},
		// request for object data after the first byte.
		{"1-", putContent[1:]},
		// request for object data after the first byte.
		{"6-", putContent[6:]},
		// request for last 2 bytes of the object.
		{"-2", putContent[len(putContent)-2:]},
		// request for last 7 bytes of the object.

// ServerSystemConfig - captures information about server configuration.
type ServerSystemConfig struct {
	NEndpoints int
	CmdLines   []string
	MinioEnv   map[string]string
}

// Diff - returns error on first difference found in two configs.
func (s1 *ServerSystemConfig) Diff(s2 *ServerSystemConfig) error {
	ns1 := s1.NEndpoints
	ns2 := s2.NEndpoints
	if ns1 != ns2 {

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidCopyPartRange: {
		Code:           "InvalidArgument",
		Description:    "The x-amz-copy-source-range value must be of the form bytes=first-last where first and last are the zero-based offsets of the first and last bytes to copy",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidCopyPartRangeSource: {
		Code:           "InvalidArgument",

	forwarded = http.CanonicalHeaderKey("Forwarded")
	// Allows for a sub-match of the first value after 'for=' to the next
	// comma, semi-colon or space. The match is case-insensitive.
	forRegex = regexp.MustCompile(`(?i)(?:for=)([^(;|,| )]+)(.*)`)
	// Allows for a sub-match for the first instance of scheme (http|https)
	// prefixed by 'proto='. The match is case-insensitive.

// If any error occurs the unmodified data is returned.
func xlMetaV2TrimData(buf []byte) []byte {
	metaBuf, min, maj, err := checkXL2V1(buf)
	if err != nil {
		return buf
	}
	if maj == 1 && min < 1 {
		// First version to carry data.
		return buf
	}
	// Skip header
	_, metaBuf, err = msgp.ReadBytesZC(metaBuf)
	if err != nil {
		storageLogIf(GlobalContext, err)
		return buf
	}
	// Skip CRC

						stopFn(err)
						continue
					}

					stopFn(nil)
					failure = false
					break
				}
				if ignore {
					continue
				}
				if failure {
					break // break out on first error
				}
				z.updatePoolStats(poolIdx, bucket, version)
				rebalanced++
			}

			// if all versions were rebalanced, we can delete the object versions.
			if rebalanced == len(fivs.Versions) {

			errs[idx] = err
			results[idx] = result
		}(idx, pool)
	}
	wg.Wait()

	// Return the first nil error
	for idx, err := range errs {
		if err == nil {
			return results[idx], nil
		}
	}

	// No pool returned a nil error, return the first non 'not found' error
	for idx, err := range errs {
		if !isErrObjectNotFound(err) && !isErrVersionNotFound(err) {