[chore] remove vendor

1 files changed, 0 insertions, 80 deletions

diff --git a/vendor/modernc.org/mathutil/binarylog.go b/vendor/modernc.org/mathutil/binarylog.go
deleted file mode 100644
index 5a35c57d8..000000000
--- a/vendor/modernc.org/mathutil/binarylog.go
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2016 The mathutil Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package mathutil // import "modernc.org/mathutil"
-
-import (
-	"math/big"
-)
-
-type float struct {
-	n           *big.Int
-	fracBits    int
-	maxFracBits int
-}
-
-func newFloat(n *big.Int, fracBits, maxFracBits int) float {
-	f := float{n: n, fracBits: fracBits, maxFracBits: maxFracBits}
-	f.normalize()
-	return f
-}
-
-func (f *float) normalize() {
-	n := f.n.BitLen()
-	if n == 0 {
-		return
-	}
-
-	if n := f.fracBits - f.maxFracBits; n > 0 {
-		bit := f.n.Bit(n - 1)
-		f.n.Rsh(f.n, uint(n))
-		if bit != 0 {
-			f.n.Add(f.n, _1)
-		}
-		f.fracBits -= n
-	}
-
-	var i int
-	for ; f.fracBits > 0 && i <= f.fracBits && f.n.Bit(i) == 0; i++ {
-		f.fracBits--
-	}
-
-	if i != 0 {
-		f.n.Rsh(f.n, uint(i))
-	}
-}
-
-func (f *float) eq1() bool { return f.fracBits == 0 && f.n.BitLen() == 1 }
-func (f *float) ge2() bool { return f.n.BitLen() > f.fracBits+1 }
-
-func (f *float) div2() {
-	f.fracBits++
-	f.normalize()
-}
-
-// BinaryLog computes the binary logarithm of n. The result consists of a
-// characteristic and a mantissa having precision mantissaBits. The value of
-// the binary logarithm is
-//
-//	characteristic + mantissa*(2^-mantissaBits)
-//
-// BinaryLog panics for n <= 0 or mantissaBits < 0.
-func BinaryLog(n *big.Int, mantissaBits int) (characteristic int, mantissa *big.Int) {
-	if n.Sign() <= 0 || mantissaBits < 0 {
-		panic("invalid argument of BinaryLog")
-	}
-
-	characteristic = n.BitLen() - 1
-	mantissa = big.NewInt(0)
-	x := newFloat(n, characteristic, mantissaBits)
-	for ; mantissaBits != 0 && !x.eq1(); mantissaBits-- {
-		x.sqr()
-		mantissa.Lsh(mantissa, 1)
-		if x.ge2() {
-			mantissa.SetBit(mantissa, 0, 1)
-			x.div2()
-		}
-	}
-	return characteristic, mantissa
-}