type PkgEncoder struct {
	// elems holds the bitstream for previously encoded elements.
	elems [numRelocs][]string

	// stringsIdx maps previously encoded strings to their index within
	// the RelocString section, to allow deduplication. That is,
	// elems[RelocString][stringsIdx[s]] == s (if present).
	stringsIdx map[string]Index

	// syncFrames is the number of frames to write at each sync

	var start uint32
	if absIdx > 0 {
		start = pr.elemEnds[absIdx-1]
	}
	end := pr.elemEnds[absIdx]

	return pr.elemData[start:end]
}

// StringIdx returns the string value for the given string index.
func (pr *PkgDecoder) StringIdx(idx Index) string {
	return pr.DataIdx(RelocString, idx)
}

// NewDecoder returns a Decoder for the given (section, index) pair,

//sys	ConvertSidToStringSid(sid *SID, stringSid **uint16) (err error) = advapi32.ConvertSidToStringSidW
//sys	ConvertStringSidToSid(stringSid *uint16, sid **SID) (err error) = advapi32.ConvertStringSidToSidW
//sys	GetLengthSid(sid *SID) (len uint32) = advapi32.GetLengthSid

)

func ConvertSidToStringSid(sid *SID, stringSid **uint16) (err error) {
	r1, _, e1 := Syscall(procConvertSidToStringSidW.Addr(), 2, uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(stringSid)), 0)
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

func ConvertStringSidToSid(stringSid *uint16, sid **SID) (err error) {

					},
					Token: stringsAdd(stmt.Token, stmt.Line[0].Token),
				}
				x.Stmt[w] = line
				w++
				continue
			}
			stmt.Line = stmt.Line[:ww]
		}
		x.Stmt[w] = stmt
		w++
	}
	x.Stmt = x.Stmt[:w]
}

func commentsAdd(x, y []Comment) []Comment {
	return append(x[:len(x):len(x)], y...)
}

func stringsAdd(x, y []string) []string {

//sys	ConvertSidToStringSid(sid *SID, stringSid **uint16) (err error) = advapi32.ConvertSidToStringSidW
//sys	ConvertStringSidToSid(stringSid *uint16, sid **SID) (err error) = advapi32.ConvertStringSidToSidW
//sys	GetLengthSid(sid *SID) (len uint32) = advapi32.GetLengthSid

	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

func ConvertSidToStringSid(sid *SID, stringSid **uint16) (err error) {
	r1, _, e1 := syscall.Syscall(procConvertSidToStringSidW.Addr(), 2, uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(stringSid)), 0)
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}