func (z *Int) lehmerGCD(x, y, a, b *Int) *Int {
	var A, B, Ua, Ub *Int

	A = new(Int).Abs(a)
	B = new(Int).Abs(b)

	extended := x != nil || y != nil

	if extended {
		// Ua (Ub) tracks how many times input a has been accumulated into A (B).
		Ua = new(Int).SetInt64(1)
		Ub = new(Int)
	}

	// temp variables for multiprecision update
	q := new(Int)

*/

package sets

// Int is a set of ints, implemented via map[int]struct{} for minimal memory consumption.
//
// Deprecated: use generic Set instead.
// new ways:
// s1 := Set[int]{}
// s2 := New[int]()
type Int map[int]Empty

// NewInt creates a Int from a list of values.
func NewInt(items ...int) Int {
	return Int(New[int](items...))
}

// IntKeySet creates a Int from a keys of a map[int](? extends interface{}).

	Shift     int32
	Stabil    int32
	Jitcnt    int32
	Calcnt    int32
	Errcnt    int32
	Stbcnt    int32
	Tai       int32
	_         [44]byte
}

type Time_t int32

type Tms struct {
	Utime  int32
	Stime  int32
	Cutime int32
	Cstime int32
}

type Utimbuf struct {
	Actime  int32
	Modtime int32
}

type Rusage struct {
	Utime    Timeval
	Stime    Timeval
	Maxrss   int32

	Shift     int32
	Stabil    int32
	Jitcnt    int32
	Calcnt    int32
	Errcnt    int32
	Stbcnt    int32
	Tai       int32
	_         [44]byte
}

type Time_t int32

type Tms struct {
	Utime  int32
	Stime  int32
	Cutime int32
	Cstime int32
}

type Utimbuf struct {
	Actime  int32
	Modtime int32
}

type Rusage struct {
	Utime    Timeval
	Stime    Timeval
	Maxrss   int32

	Type [64]int8
}

type CryptoReportKPP struct {
	Type [64]int8
}

type CryptoReportAcomp struct {
	Type [64]int8
}

type LoopInfo struct {
	Number           int32
	Device           uint32
	Inode            uint64
	Rdevice          uint32
	Offset           int32
	Encrypt_type     int32
	Encrypt_key_size int32
	Flags            int32
	Name             [64]int8

	Ppsfreq   int32
	Jitter    int32
	Shift     int32
	Stabil    int32
	Jitcnt    int32
	Calcnt    int32
	Errcnt    int32
	Stbcnt    int32
	Tai       int32
	Pad_cgo_0 [44]byte
}

type Time_t int32

type Tms struct {
	Utime  int32
	Stime  int32
	Cutime int32
	Cstime int32
}

type Utimbuf struct {
	Actime  int32
	Modtime int32
}

type Rusage struct {
	Utime    Timeval

	Ppsfreq   int32
	Jitter    int32
	Shift     int32
	Stabil    int32
	Jitcnt    int32
	Calcnt    int32
	Errcnt    int32
	Stbcnt    int32
	Tai       int32
	Pad_cgo_0 [44]byte
}

type Time_t int32

type Tms struct {
	Utime  int32
	Stime  int32
	Cutime int32
	Cstime int32
}

type Utimbuf struct {
	Actime  int32
	Modtime int32
}

type Rusage struct {
	Utime    Timeval

	Type [64]int8
}

type CryptoReportKPP struct {
	Type [64]int8
}

type CryptoReportAcomp struct {
	Type [64]int8
}

type LoopInfo struct {
	Number           int32
	Device           uint32
	Inode            uint64
	Rdevice          uint32
	Offset           int32
	Encrypt_type     int32
	Encrypt_key_size int32
	Flags            int32
	Name             [64]int8

	Type [64]int8
}

type CryptoReportKPP struct {
	Type [64]int8
}

type CryptoReportAcomp struct {
	Type [64]int8
}

type LoopInfo struct {
	Number           int32
	Device           uint32
	Inode            uint64
	Rdevice          uint32
	Offset           int32
	Encrypt_type     int32
	Encrypt_key_size int32
	Flags            int32
	Name             [64]int8

type PtraceRegs struct {
	Ebx      int32
	Ecx      int32
	Edx      int32
	Esi      int32
	Edi      int32
	Ebp      int32
	Eax      int32
	Xds      int32
	Xes      int32
	Xfs      int32
	Xgs      int32
	Orig_eax int32
	Eip      int32
	Xcs      int32
	Eflags   int32
	Esp      int32
	Xss      int32
}

type FdSet struct {
	Bits [32]int32
}

type Sysinfo_t struct {