internal static unsafe double ParseDouble(string value, NumberStyles options, NumberFormatInfo numfmt)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
byte *stackBuffer = stackalloc byte[Number.NumberBuffer.NumberBufferBytes];
Number.NumberBuffer number = new Number.NumberBuffer(stackBuffer);
double num = 0.0;
if (!Number.TryStringToNumber(value, options, ref number, numfmt, false))
{
string str = value.Trim();
if (str.Equals(numfmt.PositiveInfinitySymbol))
{
return(double.PositiveInfinity);
}
if (str.Equals(numfmt.NegativeInfinitySymbol))
{
return(double.NegativeInfinity);
}
if (str.Equals(numfmt.NaNSymbol))
{
return(double.NaN);
}
throw new FormatException(Environment.GetResourceString("Format_InvalidString"));
}
if (!Number.NumberBufferToDouble(number.PackForNative(), ref num))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Double"));
}
return(num);
}
internal unsafe static bool TryParseSingle(string value, NumberStyles options, NumberFormatInfo numfmt, out float result)
{
byte *stackBuffer = stackalloc byte[checked (unchecked ((UIntPtr)Number.NumberBuffer.NumberBufferBytes) * 1)];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
result = 0f;
double num = 0.0;
if (!Number.TryStringToNumber(value, options, ref numberBuffer, numfmt, false))
{
return(false);
}
if (!Number.NumberBufferToDouble(numberBuffer.PackForNative(), ref num))
{
return(false);
}
float num2 = (float)num;
if (float.IsInfinity(num2))
{
return(false);
}
result = num2;
return(true);
}
internal static unsafe Decimal ParseDecimal(string value, NumberStyles options, NumberFormatInfo numfmt)
{
byte *stackBuffer = stackalloc byte[Number.NumberBuffer.NumberBufferBytes];
Number.NumberBuffer number = new Number.NumberBuffer(stackBuffer);
Decimal num = new Decimal();
Number.StringToNumber(value, options, ref number, numfmt, true);
if (!Number.NumberBufferToDecimal(number.PackForNative(), ref num))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Decimal"));
}
return(num);
}
internal unsafe static decimal ParseDecimal(string value, NumberStyles options, NumberFormatInfo numfmt)
{
byte *stackBuffer = stackalloc byte[checked (unchecked ((UIntPtr)Number.NumberBuffer.NumberBufferBytes) * 1)];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
decimal result = 0m;
Number.StringToNumber(value, options, ref numberBuffer, numfmt, true);
if (!Number.NumberBufferToDecimal(numberBuffer.PackForNative(), ref result))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Decimal"));
}
return(result);
}
internal unsafe static float ParseSingle(string value, NumberStyles options, NumberFormatInfo numfmt)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
byte *stackBuffer = stackalloc byte[checked (unchecked ((UIntPtr)Number.NumberBuffer.NumberBufferBytes) * 1)];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
double num = 0.0;
if (!Number.TryStringToNumber(value, options, ref numberBuffer, numfmt, false))
{
string text = value.Trim();
if (text.Equals(numfmt.PositiveInfinitySymbol))
{
return(float.PositiveInfinity);
}
if (text.Equals(numfmt.NegativeInfinitySymbol))
{
return(float.NegativeInfinity);
}
if (text.Equals(numfmt.NaNSymbol))
{
return(float.NaN);
}
throw new FormatException(Environment.GetResourceString("Format_InvalidString"));
}
else
{
if (!Number.NumberBufferToDouble(numberBuffer.PackForNative(), ref num))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Single"));
}
float num2 = (float)num;
if (float.IsInfinity(num2))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Single"));
}
return(num2);
}
}
static String FormatBigInteger(BigInteger value, String format, NumberFormatInfo info) {
int digits = 0;
char fmt = ParseFormatSpecifier(format, out digits);
if (fmt == 'x' || fmt == 'X')
return FormatBigIntegerToHexString(value, fmt, digits, info);
bool decimalFmt = (fmt == 'g' || fmt == 'G' || fmt == 'd' || fmt == 'D' || fmt == 'r' || fmt == 'R');
#if SILVERLIGHT ||FEATURE_NETCORE
if (!decimalFmt) {
// Silverlight supports invariant formats only
throw new FormatException(SR.GetString(SR.Format_InvalidFormatSpecifier));
}
#endif //SILVERLIGHT ||FEATURE_NETCORE
if (value._bits == null) {
if (fmt == 'g' || fmt == 'G' || fmt == 'r' || fmt == 'R') {
if (digits > 0)
format = String.Format(CultureInfo.InvariantCulture, "D{0}", digits.ToString(CultureInfo.InvariantCulture));
else
format = "D";
}
return value._sign.ToString(format, info);
}
// First convert to base 10^9.
const uint kuBase = 1000000000; // 10^9
const int kcchBase = 9;
int cuSrc = BigInteger.Length(value._bits);
int cuMax;
try {
cuMax = checked(cuSrc * 10 / 9 + 2);
}
catch (OverflowException e) { throw new FormatException(SR.GetString(SR.Format_TooLarge), e); }
uint[] rguDst = new uint[cuMax];
int cuDst = 0;
for (int iuSrc = cuSrc; --iuSrc >= 0; ) {
uint uCarry = value._bits[iuSrc];
for (int iuDst = 0; iuDst < cuDst; iuDst++) {
Contract.Assert(rguDst[iuDst] < kuBase);
ulong uuRes = NumericsHelpers.MakeUlong(rguDst[iuDst], uCarry);
rguDst[iuDst] = (uint)(uuRes % kuBase);
uCarry = (uint)(uuRes / kuBase);
}
if (uCarry != 0) {
rguDst[cuDst++] = uCarry % kuBase;
uCarry /= kuBase;
if (uCarry != 0)
rguDst[cuDst++] = uCarry;
}
}
int cchMax;
try {
// Each uint contributes at most 9 digits to the decimal representation.
cchMax = checked(cuDst * kcchBase);
}
catch (OverflowException e) { throw new FormatException(SR.GetString(SR.Format_TooLarge), e); }
if (decimalFmt) {
if (digits > 0 && digits > cchMax)
cchMax = digits;
if (value._sign < 0) {
try {
// Leave an extra slot for a minus sign.
cchMax = checked(cchMax + info.NegativeSign.Length);
}
catch (OverflowException e) { throw new FormatException(SR.GetString(SR.Format_TooLarge), e); }
}
}
int rgchBufSize;
try {
// We'll pass the rgch buffer to native code, which is going to treat it like a string of digits, so it needs
// to be null terminated. Let's ensure that we can allocate a buffer of that size.
rgchBufSize = checked(cchMax + 1);
} catch (OverflowException e) { throw new FormatException(SR.GetString(SR.Format_TooLarge), e); }
char[] rgch = new char[rgchBufSize];
int ichDst = cchMax;
for (int iuDst = 0; iuDst < cuDst - 1; iuDst++) {
uint uDig = rguDst[iuDst];
Contract.Assert(uDig < kuBase);
for (int cch = kcchBase; --cch >= 0; ) {
rgch[--ichDst] = (char)('0' + uDig % 10);
uDig /= 10;
}
}
for (uint uDig = rguDst[cuDst - 1]; uDig != 0; ) {
rgch[--ichDst] = (char)('0' + uDig % 10);
uDig /= 10;
}
#if !SILVERLIGHT ||FEATURE_NETCORE
if (!decimalFmt) {
//
// Go to the VM for GlobLoc aware formatting
//
Byte * numberBufferBytes = stackalloc Byte[Number.NumberBuffer.NumberBufferBytes];
Number.NumberBuffer number = new Number.NumberBuffer(numberBufferBytes);
// sign = true for negative and false for 0 and positive values
number.sign = (value._sign < 0);
// the cut-off point to switch (G)eneral from (F)ixed-point to (E)xponential form
number.precision = 29;
number.digits[0] = '\0';
number.scale = cchMax - ichDst;
int maxDigits = Math.Min(ichDst + 50, cchMax);
for (int i = ichDst; i < maxDigits; i++) {
number.digits[i - ichDst] = rgch[i];
}
fixed(char* pinnedExtraDigits = rgch) {
return Number.FormatNumberBuffer(number.PackForNative(), format, info, pinnedExtraDigits + ichDst);
}
}
#endif //!SILVERLIGHT ||FEATURE_NETCORE
// Format Round-trip decimal
// This format is supported for integral types only. The number is converted to a string of
// decimal digits (0-9), prefixed by a minus sign if the number is negative. The precision
// specifier indicates the minimum number of digits desired in the resulting string. If required,
// the number is padded with zeros to its left to produce the number of digits given by the
// precision specifier.
int numDigitsPrinted = cchMax - ichDst;
while (digits > 0 && digits > numDigitsPrinted) {
// pad leading zeros
rgch[--ichDst] = '0';
digits--;
}
if (value._sign < 0) {
String negativeSign = info.NegativeSign;
for (int i = info.NegativeSign.Length - 1; i > -1; i--)
rgch[--ichDst] = info.NegativeSign[i];
}
return new String(rgch, ichDst, cchMax - ichDst);
}
internal static unsafe string FormatBigInteger(BigInteger value, string format, NumberFormatInfo info)
{
int num3;
int num9;
int digits = 0;
char ch = ParseFormatSpecifier(format, out digits);
switch (ch)
{
case 'x':
case 'X':
return FormatBigIntegerToHexString(value, ch, digits, info);
}
bool flag = ((((ch == 'g') || (ch == 'G')) || ((ch == 'd') || (ch == 'D'))) || (ch == 'r')) || (ch == 'R');
if (value._bits == null)
{
switch (ch)
{
case 'g':
case 'G':
case 'r':
case 'R':
if (digits > 0)
{
format = string.Format(CultureInfo.InvariantCulture, "D{0}", new object[] { digits.ToString(CultureInfo.InvariantCulture) });
}
else
{
format = "D";
}
break;
}
return value._sign.ToString(format, info);
}
int num2 = BigInteger.Length(value._bits);
try
{
num3 = ((num2 * 10) / 9) + 2;
}
catch (OverflowException exception)
{
throw new FormatException(SR.GetString("Format_TooLarge"), exception);
}
uint[] numArray = new uint[num3];
int num4 = 0;
int index = num2;
while (--index >= 0)
{
uint uLo = value._bits[index];
for (int k = 0; k < num4; k++)
{
ulong num8 = NumericsHelpers.MakeUlong(numArray[k], uLo);
numArray[k] = (uint) (num8 % ((ulong) 0x3b9aca00L));
uLo = (uint) (num8 / ((ulong) 0x3b9aca00L));
}
if (uLo != 0)
{
numArray[num4++] = uLo % 0x3b9aca00;
uLo /= 0x3b9aca00;
if (uLo != 0)
{
numArray[num4++] = uLo;
}
}
}
try
{
num9 = num4 * 9;
}
catch (OverflowException exception2)
{
throw new FormatException(SR.GetString("Format_TooLarge"), exception2);
}
if (flag)
{
if ((digits > 0) && (digits > num9))
{
num9 = digits;
}
if (value._sign < 0)
{
try
{
num9 += info.NegativeSign.Length;
}
catch (OverflowException exception3)
{
throw new FormatException(SR.GetString("Format_TooLarge"), exception3);
}
}
}
char[] chArray = new char[num9];
int startIndex = num9;
for (int i = 0; i < (num4 - 1); i++)
{
uint num12 = numArray[i];
int num13 = 9;
while (--num13 >= 0)
{
chArray[--startIndex] = (char) (0x30 + (num12 % 10));
num12 /= 10;
}
}
for (uint j = numArray[num4 - 1]; j != 0; j /= 10)
{
chArray[--startIndex] = (char) (0x30 + (j % 10));
}
if (!flag)
{
byte* stackBuffer = stackalloc byte[0x72];
Number.NumberBuffer buffer = new Number.NumberBuffer(stackBuffer) {
sign = value._sign < 0,
precision = 0x1d
};
buffer.digits[0] = '\0';
buffer.scale = num9 - startIndex;
int num15 = Math.Min(startIndex + 50, num9);
for (int m = startIndex; m < num15; m++)
{
buffer.digits[m - startIndex] = chArray[m];
}
return Number.FormatNumberBuffer(buffer.PackForNative(), format, info);
}
int num17 = num9 - startIndex;
while ((digits > 0) && (digits > num17))
{
chArray[--startIndex] = '0';
digits--;
}
if (value._sign < 0)
{
string negativeSign = info.NegativeSign;
for (int n = info.NegativeSign.Length - 1; n > -1; n--)
{
chArray[--startIndex] = info.NegativeSign[n];
}
}
return new string(chArray, startIndex, num9 - startIndex);
}
internal unsafe static bool TryParseSingle(string value, NumberStyles options, NumberFormatInfo numfmt, out float result)
{
byte* stackBuffer = stackalloc byte[(UIntPtr)114 / 1];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
result = 0f;
double num = 0.0;
if (!Number.TryStringToNumber(value, options, ref numberBuffer, numfmt, false))
{
return false;
}
if (!Number.NumberBufferToDouble(numberBuffer.PackForNative(), ref num))
{
return false;
}
float num2 = (float)num;
if (float.IsInfinity(num2))
{
return false;
}
result = num2;
return true;
}
internal unsafe static bool TryParseDouble(string value, NumberStyles options, NumberFormatInfo numfmt, out double result)
{
byte* stackBuffer = stackalloc byte[(UIntPtr)114 / 1];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
result = 0.0;
return Number.TryStringToNumber(value, options, ref numberBuffer, numfmt, false) && Number.NumberBufferToDouble(numberBuffer.PackForNative(), ref result);
}
internal unsafe static float ParseSingle(string value, NumberStyles options, NumberFormatInfo numfmt)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
byte* stackBuffer = stackalloc byte[(UIntPtr)114 / 1];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
double num = 0.0;
if (!Number.TryStringToNumber(value, options, ref numberBuffer, numfmt, false))
{
string text = value.Trim();
if (text.Equals(numfmt.PositiveInfinitySymbol))
{
return float.PositiveInfinity;
}
if (text.Equals(numfmt.NegativeInfinitySymbol))
{
return float.NegativeInfinity;
}
if (text.Equals(numfmt.NaNSymbol))
{
return float.NaN;
}
throw new FormatException(Environment.GetResourceString("Format_InvalidString"));
}
else
{
if (!Number.NumberBufferToDouble(numberBuffer.PackForNative(), ref num))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Single"));
}
float num2 = (float)num;
if (float.IsInfinity(num2))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Single"));
}
return num2;
}
}
internal unsafe static decimal ParseDecimal(string value, NumberStyles options, NumberFormatInfo numfmt)
{
byte* stackBuffer = stackalloc byte[(UIntPtr)114 / 1];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
decimal result = 0m;
Number.StringToNumber(value, options, ref numberBuffer, numfmt, true);
if (!Number.NumberBufferToDecimal(numberBuffer.PackForNative(), ref result))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Decimal"));
}
return result;
}
internal static unsafe bool TryParseSingle(string value, NumberStyles options, NumberFormatInfo numfmt, out float result)
{
byte *stackBuffer = stackalloc byte[Number.NumberBuffer.NumberBufferBytes];
Number.NumberBuffer number = new Number.NumberBuffer(stackBuffer);
result = 0.0f;
double num = 0.0;
if (!Number.TryStringToNumber(value, options, ref number, numfmt, false) || !Number.NumberBufferToDouble(number.PackForNative(), ref num))
{
return(false);
}
float f = (float)num;
if (float.IsInfinity(f))
{
return(false);
}
result = f;
return(true);
}
internal static unsafe bool TryParseDouble(string value, NumberStyles options, NumberFormatInfo numfmt, out double result)
{
byte *stackBuffer = stackalloc byte[Number.NumberBuffer.NumberBufferBytes];
Number.NumberBuffer number = new Number.NumberBuffer(stackBuffer);
result = 0.0;
return(Number.TryStringToNumber(value, options, ref number, numfmt, false) && Number.NumberBufferToDouble(number.PackForNative(), ref result));
}
internal unsafe static bool TryParseDecimal(string value, NumberStyles options, NumberFormatInfo numfmt, out decimal result)
{
byte *stackBuffer = stackalloc byte[checked (unchecked ((UIntPtr)Number.NumberBuffer.NumberBufferBytes) * 1)];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
result = 0m;
return(Number.TryStringToNumber(value, options, ref numberBuffer, numfmt, true) && Number.NumberBufferToDecimal(numberBuffer.PackForNative(), ref result));
}
