// Set a key, value pair.
func (m *MSS) Set(key, value string) {
	if m == nil {
		*m = mssPool.Get()
	}
	(*m)[key] = value
}

// UnmarshalMsg deserializes m from the provided byte slice and returns the
// remainder of bytes.
func (m *MSS) UnmarshalMsg(bts []byte) (o []byte, err error) {
	if m == nil {
		return bts, errors.New("MSS: UnmarshalMsg on nil pointer")
	}
	if msgp.IsNil(bts) {
		bts = bts[1:]
		*m = nil

		default:
			return nil, false, errWildcardObjectLookup
		}

	case p[0].ArrayWildcard:
		arr, ok := v.([]any)
		if !ok {
			return nil, false, errWildcardArrayLookup
		}

		// Lookup remainder of path in each array element and
		// make result array.
		var result []any
		for _, a := range arr {
			rval, flatten, err := jsonpathEval(p[1:], a)
			if err != nil {
				return nil, false, err
			}

			s = append(s, r)
		}
	}
	if hasLeadingPercent {
		return strings.HasSuffix(text, string(s)), nil
	}
	return string(s) == text, nil
}

// matcher - Finds `pat` in `text`, and returns the part remainder of
// `text`, after the match. If leadingPercent is false, `pat` must be
// the prefix of `text`, otherwise it must be a substring.
func matcher(text, pat string, leadingPercent bool) (res string, match bool) {

			// closing 'w'.
			if err = disk.DisableDirectIO(file); err != nil {
				return written, err
			}

			// buf is not aligned, hence use writeUnaligned()
			// for the remainder
			un, err = w.Write(buf[len(buf)-remain:])
			nw += int64(un)
		}

		if nw > 0 {
			written += nw
		}

		if err != nil {
			return written, err
		}

		if nw != int64(len(buf)) {

}

// parsePAXRecord parses the input PAX record string into a key-value pair.
// If parsing is successful, it will slice off the currently read record and
// return the remainder as r.
func parsePAXRecord(s string) (k, v, r string, err error) {
	// The size field ends at the first space.
	nStr, rest, ok := strings.Cut(s, " ")
	if !ok {
		return "", "", s, ErrHeader
	}

// If sep is empty, SplitN splits after each UTF-8 sequence.
// The count determines the number of subslices to return:
//   - n > 0: at most n subslices; the last subslice will be the unsplit remainder;
//   - n == 0: the result is nil (zero subslices);
//   - n < 0: all subslices.
//
// To split around the first instance of a separator, see [Cut].

	// normally be visible to the outside. As such, this loop iterates through
	// one or more "header files" until it finds a "normal file".
	format := FormatUSTAR | FormatPAX | FormatGNU
	for {
		// Discard the remainder of the file and any padding.
		if err := discard(tr.r, tr.curr.physicalRemaining()); err != nil {
			return nil, err
		}
		if _, err := tryReadFull(tr.r, tr.blk[:tr.pad]); err != nil {
			return nil, err
		}

-    difference             integers, floats, complex values
*    product                integers, floats, complex values
/    quotient               integers, floats, complex values
%    remainder              integers

&    bitwise AND            integers
|    bitwise OR             integers
^    bitwise XOR            integers
&^   bit clear (AND NOT)    integers

// [ q/2, q + q/2 ) -> round to 1 // [ q + q/2, 2q ) -> round to 2 // // We can convert that to the following logic: add 1 if remainder > q/2, // then add 1 again if remainder > q + q/2. // // Note that if remainder > x, then ⌊x⌋ - remainder underflows, and the top // bit of the difference will be set. quotient += (q/2 - remainder) >> 31 & 1 quotient += (q + q/2 - remainder) >> 31 & 1 // quotient might have overflowed at this point, so reduce it by masking. var mask uint32 = (1 << d) - 1 return uint16(quotient...

// [ q/2, q + q/2 ) -> round to 1 // [ q + q/2, 2q ) -> round to 2 // // We can convert that to the following logic: add 1 if remainder > q/2, // then add 1 again if remainder > q + q/2. // // Note that if remainder > x, then ⌊x⌋ - remainder underflows, and the top // bit of the difference will be set. quotient += (q/2 - remainder) >> 31 & 1 quotient += (q + q/2 - remainder) >> 31 & 1 // quotient might have overflowed at this point, so reduce it by masking. var mask uint32 = (1 << d) - 1 return uint16(quotient...