package allocator

import (
	"math/big"
	"testing"
)

func TestCountBits(t *testing.T) {
	// bigN is an integer that occupies more than one big.Word.
	bigN, ok := big.NewInt(0).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
	if !ok {
		t.Fatal("Failed to set bigN")
	}
	tests := []struct {
		n        *big.Int
		expected int
	}{
		{n: big.NewInt(int64(0)), expected: 0},

	Curve
}

func (s synthCombinedMult) CombinedMult(bigX, bigY *big.Int, baseScalar, scalar []byte) (x, y *big.Int) {
	x1, y1 := s.ScalarBaseMult(baseScalar)
	x2, y2 := s.ScalarMult(bigX, bigY, scalar)
	return s.Add(x1, y1, x2, y2)
}

func TestP256CombinedMult(t *testing.T) {
	type combinedMult interface {
		Curve
		CombinedMult(bigX, bigY *big.Int, baseScalar, scalar []byte) (x, y *big.Int)
	}

	p256, ok := P256().(combinedMult)

package bbig

import (
	"crypto/internal/boring"
	"math/big"
	"unsafe"
)

func Enc(b *big.Int) boring.BigInt {
	if b == nil {
		return nil
	}
	x := b.Bits()
	if len(x) == 0 {
		return boring.BigInt{}
	}
	return unsafe.Slice((*uint)(&x[0]), len(x))
}

func Dec(b boring.BigInt) *big.Int {
	if b == nil {
		return nil
	}
	if len(b) == 0 {
		return new(big.Int)
	}

          .add(doubleConversionTest + i);
      BigInteger bigI = BigInteger.valueOf(i);
      testBigIntegersBuilder
          .add(bigI)
          .add(BigInteger.valueOf(Long.MAX_VALUE).add(bigI))
          .add(BigInteger.valueOf(Long.MIN_VALUE).add(bigI))
          .add(BigInteger.valueOf(Integer.MAX_VALUE).add(bigI))
          .add(BigInteger.valueOf(Integer.MIN_VALUE).add(bigI))
          .add(BigInteger.ONE.shiftLeft(63).add(bigI))

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package codegen

type big1 struct {
	w [1<<30 - 1]uint32
}
type big2 struct {
	d [1<<29 - 1]uint64
}

func loadLargeOffset(sw *big1, sd *big2) (uint32, uint64) {

	// ppc64x:`MOVWZ\s+[0-9]+\(R[0-9]+\)`,-`ADD`
	a3 := sw.w[1<<10]
	// ppc64le/power10:`MOVWZ\s+[0-9]+\(R[0-9]+\),\sR[0-9]+`,-`ADD`

   * arithmetic.
   */
  private static int computeMeanSafely(int x, int y) {
    BigInteger bigX = BigInteger.valueOf(x);
    BigInteger bigY = BigInteger.valueOf(y);
    BigDecimal bigMean =
        new BigDecimal(bigX.add(bigY)).divide(BigDecimal.valueOf(2), BigDecimal.ROUND_FLOOR);
    // parseInt blows up on overflow as opposed to intValue() which does not.

  private static boolean fitsInLong(BigInteger big) {
    return big.bitLength() <= 63;
  }

  private static final BigInteger MAX_LONG = BigInteger.valueOf(Long.MAX_VALUE);
  private static final BigInteger MIN_LONG = BigInteger.valueOf(Long.MIN_VALUE);

  private static long saturatedCast(BigInteger big) {
    if (big.compareTo(MAX_LONG) > 0) {
      return Long.MAX_VALUE;
    }
    if (big.compareTo(MIN_LONG) < 0) {

  private static boolean fitsInLong(BigInteger big) {
    return big.bitLength() <= 63;
  }

  private static final BigInteger MAX_LONG = BigInteger.valueOf(Long.MAX_VALUE);
  private static final BigInteger MIN_LONG = BigInteger.valueOf(Long.MIN_VALUE);

  private static long saturatedCast(BigInteger big) {
    if (big.compareTo(MAX_LONG) > 0) {
      return Long.MAX_VALUE;
    }
    if (big.compareTo(MIN_LONG) < 0) {

	}
	p := d.p[0:n]
	d.p = d.p[n:]
	return p
}

func (d *dataIO) big4() (n uint32, ok bool) {
	p := d.read(4)
	if len(p) < 4 {
		d.error = true
		return 0, false
	}
	return uint32(p[3]) | uint32(p[2])<<8 | uint32(p[1])<<16 | uint32(p[0])<<24, true
}

func (d *dataIO) big8() (n uint64, ok bool) {
	n1, ok1 := d.big4()
	n2, ok2 := d.big4()
	if !ok1 || !ok2 {
		d.error = true
		return 0, false
	}

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