r.prevRune = -1
	var abs int64
	switch whence {
	case io.SeekStart:
		abs = offset
	case io.SeekCurrent:
		abs = r.i + offset
	case io.SeekEnd:
		abs = int64(len(r.s)) + offset
	default:
		return 0, errors.New("bytes.Reader.Seek: invalid whence")
	}
	if abs < 0 {
		return 0, errors.New("bytes.Reader.Seek: negative position")
	}
	r.i = abs
	return abs, nil
}

}

// Neg sets z = -x and returns z.
func (z *Int) Neg(x *Int) *Int {
	x.doinit()
	z.doinit()
	C.mpz_neg(&z.i[0], &x.i[0])
	return z
}

// Abs sets z to the absolute value of x and returns z.
func (z *Int) Abs(x *Int) *Int {
	x.doinit()
	z.doinit()
	C.mpz_abs(&z.i[0], &x.i[0])
	return z
}

/*
 * functions without a clear receiver
 */

pkg sync/atomic, type Pointer[$0 interface{}] struct #50860
pkg sync/atomic, type Uint32 struct #50860
pkg sync/atomic, type Uint64 struct #50860
pkg sync/atomic, type Uintptr struct #50860
pkg time, method (Duration) Abs() Duration #51414
pkg time, method (Time) ZoneBounds() (Time, Time) #50062
pkg crypto/x509, func ParseCRL //deprecated #50674
pkg crypto/x509, func ParseDERCRL //deprecated #50674

    <glob pattern="INSTALL"/>
    <glob pattern="KEYS"/>
    <glob pattern="LICENSE"/>
    <glob pattern="NOTICE"/>
    <glob pattern="README"/>
    <glob pattern="abs-linkmap"/>
    <glob pattern="abs-menulinks"/>
    <glob pattern="*.aart"/>
    <glob pattern="*.ac"/>
    <glob pattern="*.am"/>
    <glob pattern="*.apt"/>
    <glob pattern="*.bsh"/>
    <glob pattern="*.classpath"/>

pkg math/big, func Jacobi(*Int, *Int) int
pkg math/big, func NewFloat(float64) *Float
pkg math/big, func ParseFloat(string, int, uint, RoundingMode) (*Float, int, error)
pkg math/big, method (*Float) Abs(*Float) *Float
pkg math/big, method (*Float) Acc() Accuracy
pkg math/big, method (*Float) Add(*Float, *Float) *Float
pkg math/big, method (*Float) Append([]uint8, uint8, int) []uint8

*   Enable JIT-compiled i64-indexed kernels on GPU for large tensors with more than 2**32 elements.
    *   Unary GPU kernels: Abs, Atanh, Acos, Acosh, Asin, Asinh, Atan, Cos, Cosh, Sin, Sinh, Tan, Tanh.
    *   Binary GPU kernels: AddV2, Sub, Div, DivNoNan, Mul, MulNoNan, FloorDiv, Equal, NotEqual, Greater, GreaterEqual, LessEqual, Less.

* `tf.lite`

pkg math, const SmallestNonzeroFloat64 ideal-float
pkg math, const Sqrt2 ideal-float
pkg math, const SqrtE ideal-float
pkg math, const SqrtPhi ideal-float
pkg math, const SqrtPi ideal-float
pkg math, func Abs(float64) float64
pkg math, func Acos(float64) float64
pkg math, func Acosh(float64) float64
pkg math, func Asin(float64) float64
pkg math, func Asinh(float64) float64
pkg math, func Atan(float64) float64