public BigInteger ToBigInteger()
{
var bitsInDigit = Process.Is64Bit() ? 30 : 15;
long ob_size = this.ob_size.Read();
if (ob_size == 0)
{
return(0);
}
long count = Math.Abs(ob_size);
// Read and parse digits in reverse, starting from the most significant ones.
var result = new BigInteger(0);
if (bitsInDigit == 15)
{
var digitPtr = new UInt16Proxy(Process, ob_digit.Address).GetAdjacentProxy(count);
for (long i = 0; i != count; ++i)
{
digitPtr = digitPtr.GetAdjacentProxy(-1);
result <<= bitsInDigit;
result += digitPtr.Read();
}
}
else
{
var digitPtr = new UInt32Proxy(Process, ob_digit.Address).GetAdjacentProxy(count);
for (long i = 0; i != count; ++i)
{
digitPtr = digitPtr.GetAdjacentProxy(-1);
result <<= bitsInDigit;
result += digitPtr.Read();
}
}
return(ob_size > 0 ? result : -result);
}
public static PyLongObject Create(DkmProcess process, BigInteger value) {
var allocator = process.GetDataItem<PyObjectAllocator>();
Debug.Assert(allocator != null);
var bitsInDigit = process.Is64Bit() ? 30 : 15;
var bytesInDigit = process.Is64Bit() ? 4 : 2;
var absValue = BigInteger.Abs(value);
long numDigits = 0;
for (var t = absValue; t != 0; ) {
++numDigits;
t >>= bitsInDigit;
}
var result = allocator.Allocate<PyLongObject>(numDigits * bytesInDigit);
if (value == 0) {
result.ob_size.Write(0);
} else if (value > 0) {
result.ob_size.Write(numDigits);
} else if (value < 0) {
result.ob_size.Write(-numDigits);
}
if (bitsInDigit == 15) {
for (var digitPtr = new UInt16Proxy(process, result.ob_digit.Address); absValue != 0; digitPtr = digitPtr.GetAdjacentProxy(1)) {
digitPtr.Write((ushort)(absValue % (1 << bitsInDigit)));
absValue >>= bitsInDigit;
}
} else {
for (var digitPtr = new UInt32Proxy(process, result.ob_digit.Address); absValue != 0; digitPtr = digitPtr.GetAdjacentProxy(1)) {
digitPtr.Write((uint)(absValue % (1 << bitsInDigit)));
absValue >>= bitsInDigit;
}
}
return result;
}
public static PyLongObject Create(DkmProcess process, BigInteger value)
{
var allocator = process.GetDataItem <PyObjectAllocator>();
Debug.Assert(allocator != null);
var bitsInDigit = process.Is64Bit() ? 30 : 15;
var bytesInDigit = process.Is64Bit() ? 4 : 2;
var absValue = BigInteger.Abs(value);
long numDigits = 0;
for (var t = absValue; t != 0;)
{
++numDigits;
t >>= bitsInDigit;
}
var result = allocator.Allocate <PyLongObject>(numDigits * bytesInDigit);
if (value == 0)
{
result.ob_size.Write(0);
}
else if (value > 0)
{
result.ob_size.Write(numDigits);
}
else if (value < 0)
{
result.ob_size.Write(-numDigits);
}
if (bitsInDigit == 15)
{
for (var digitPtr = new UInt16Proxy(process, result.ob_digit.Address); absValue != 0; digitPtr = digitPtr.GetAdjacentProxy(1))
{
digitPtr.Write((ushort)(absValue % (1 << bitsInDigit)));
absValue >>= bitsInDigit;
}
}
else
{
for (var digitPtr = new UInt32Proxy(process, result.ob_digit.Address); absValue != 0; digitPtr = digitPtr.GetAdjacentProxy(1))
{
digitPtr.Write((uint)(absValue % (1 << bitsInDigit)));
absValue >>= bitsInDigit;
}
}
return(result);
}
public BigInteger ToBigInteger() {
var bitsInDigit = Process.Is64Bit() ? 30 : 15;
long ob_size = this.ob_size.Read();
if (ob_size == 0) {
return 0;
}
long count = Math.Abs(ob_size);
// Read and parse digits in reverse, starting from the most significant ones.
var result = new BigInteger(0);
if (bitsInDigit == 15) {
var digitPtr = new UInt16Proxy(Process, ob_digit.Address).GetAdjacentProxy(count);
for (long i = 0; i != count; ++i) {
digitPtr = digitPtr.GetAdjacentProxy(-1);
result <<= bitsInDigit;
result += digitPtr.Read();
}
} else {
var digitPtr = new UInt32Proxy(Process, ob_digit.Address).GetAdjacentProxy(count);
for (long i = 0; i != count; ++i) {
digitPtr = digitPtr.GetAdjacentProxy(-1);
result <<= bitsInDigit;
result += digitPtr.Read();
}
}
return ob_size > 0 ? result : -result;
}
