Method GCD

bigint.go:554–572

GCD calls (big.Int).GCD.

(x, y, a, b *BigInt)

// GCD calls (big.Int).GCD.
func (z *BigInt) GCD(x, y, a, b *BigInt) *BigInt {
	var tmp1, tmp2, tmp3, tmp4, tmp5 big.Int //gcassert:noescape
	zi := z.inner(&tmp1)
	ai := a.inner(&tmp2)
	bi := b.inner(&tmp3)
	xi := x.innerOrNil(&tmp4)
	// NOTE: innerOrNilOrAlias for the y param because (big.Int).GCD needs to
	// detect when y is aliased to b. See "avoid aliasing b" in lehmerGCD.
	yi := y.innerOrNilOrAlias(&tmp5, b, bi)
	zi.GCD(xi, yi, ai, bi)
	z.updateInner(zi)
	if xi != nil {
		x.updateInner(xi)
	}
	if yi != nil {
		y.updateInner(yi)
	}
	return z
}

// GobEncode calls (big.Int).GobEncode.
func (z *BigInt) GobEncode() ([]byte, error) {