public static long Run()
{
//A bit of a struggle to find the right for loop.
//You substring 13 digits starting from 0 and calculate the greatest product by
//converting it into an array. You add 1 to the for loop comparision because
//at index 987 when you substring 13 dights you have gotten the last substring.
//The product of the numbers is stored in a variable and constantly checked and you
//always keep track of the largest product and replace only when you have found the
//largest number, which is what Math.Max will do.
const string NUMBER = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450";
const int adjacent = 13;
long result = 0;
for (int i = 0; i + adjacent <= NUMBER.Length; i++)
{
string str = NUMBER.Substring(i, adjacent);
char[] data = str.ToCharArray();
long adjacentProduct = 1;
for (int j = 0; j < adjacent; j++)
{
adjacentProduct *= int.Parse(data[j].ToString());
}
result = Math.Max(adjacentProduct, result);
}
return(result);
}
public CardData(int sign, int number)
{
if (!(Enum.IsDefined(typeof(SIGN), sign) && Enum.IsDefined(typeof(NUMBER), number)))
{
throw new IndexOutOfRangeException("sign or number is not within correct range");
}
this.Sign = (SIGN)sign;
this.Number = (NUMBER)number;
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCloseAllInstantiated()
public virtual void ShouldCloseAllInstantiated()
{
// given
System.Func <IndexSlot, string> factory = SlotToStringFunction();
LazyInstanceSelector <string> selector = new LazyInstanceSelector <string>(factory);
selector.Select(NUMBER);
selector.Select(STRING);
// when
System.Action <string> consumer = mock(typeof(System.Action));
selector.Close(consumer);
// then
verify(consumer, times(1)).accept(NUMBER.ToString());
verify(consumer, times(1)).accept(STRING.ToString());
verifyNoMoreInteractions(consumer);
}
private static Boolean HexNumberToInt64(ref NUMBER number, ref Int64 value)
{
UInt64 passedValue = 0;
Boolean returnValue = HexNumberToUInt64(ref number, ref passedValue);
value = (Int64)passedValue;
return returnValue;
}
internal unsafe static Boolean NumberBufferToDouble(ref NUMBER number, ref Double value)
{
double d = 0;
NumberToDouble(ref number, &d);
if ((*(ulong*)(&d) & 0x7FFFFFFFFFFFFFFFL) >= 0x7FF0000000000000L) {
return false;
}
value = d;
return true;
}
public static String FormatSingle(float value, String format, NumberFormatInfo info)
{
NUMBER number;
int digits;
double dTest;
double argsValue = value;
string retVal;
char fmt = ParseFormatSpecifier(format, out digits);
int precision = FLOAT_PRECISION;
number = new NUMBER();
switch (fmt & 0xFFD)
{
case 'R':
//In order to give numbers that are both friendly to display and round-trippable,
//we parse the number using 7 digits and then determine if it round trips to the same
//value. If it does, we convert that NUMBER to a string, otherwise we reparse using 9 digits
//and display that.
DoubleToNumber(argsValue, FLOAT_PRECISION, ref number);
if (number.isNan)
{
retVal = info.NaNSymbol;
goto lExit;
}
if (number.isInf)
{
retVal = (number.sign ? info.NegativeInfinitySymbol : info.PositiveInfinitySymbol);
goto lExit;
}
unsafe
{
NumberToDouble(ref number, &dTest);
}
var fTest = (float)dTest;
if (fTest == value)
{
retVal = NumberToString(ref number, 'G', FLOAT_PRECISION, info);
goto lExit;
}
DoubleToNumber(argsValue, 9, ref number);
retVal = NumberToString(ref number, 'G', 9, info);
goto lExit;
case 'E':
// Here we round values less than E14 to 15 digits
if (digits > 6)
{
precision = 9;
}
break;
case 'G':
// Here we round values less than G15 to 15 digits, G16 and G17 will not be touched
if (digits > 7)
{
precision = 9;
}
break;
}
DoubleToNumber(value, precision, ref number);
if (number.isNan)
{
retVal = info.NaNSymbol;
goto lExit;
}
if (number.isInf)
{
retVal = (number.sign ? info.NegativeInfinitySymbol : info.PositiveInfinitySymbol);
goto lExit;
}
if (fmt != 0)
{
retVal = NumberToString(ref number, fmt, digits, info);
}
else
{
retVal = NumberToStringFormat(ref number, format, info);
}
lExit:
return retVal;
}
private unsafe static void NumberToDouble(ref NUMBER number, double* value)
{
fixed (char* srcPtr = number.digits)
{
char* src = srcPtr;
ulong val;
int exp;
int remaining;
int total;
int count;
int scale;
int absscale;
int index;
total = (int)wcslen(src);
remaining = total;
// skip the leading zeros
while (*src == '0')
{
remaining--;
src++;
}
if (remaining == 0)
{
*value = 0;
goto done;
}
count = Math.Min(remaining, 9);
remaining -= count;
val = DigitsToInt(src, count);
if (remaining > 0)
{
count = Math.Min(remaining, 9);
remaining -= count;
// get the denormalized power of 10
uint mult = (uint)(rgval64Power10[count - 1] >> (64 - rgexp64Power10[count - 1]));
val = ((ulong)((uint)(val)) * (ulong)((uint)(mult))) + DigitsToInt(src + 9, count);
}
scale = number.scale - (total - remaining);
absscale = Math.Abs(scale);
if (absscale >= 22 * 16)
{
// overflow / underflow
*(ulong*)value = (scale > 0) ? (ulong)0x7FF0000000000000 : 0;
goto done;
}
exp = 64;
// normalize the mantisa
if ((val & 0xFFFFFFFF00000000) == 0)
{
val <<= 32;
exp -= 32;
}
if ((val & 0xFFFF000000000000) == 0)
{
val <<= 16;
exp -= 16;
}
if ((val & 0xFF00000000000000) == 0)
{
val <<= 8;
exp -= 8;
}
if ((val & 0xF000000000000000) == 0)
{
val <<= 4;
exp -= 4;
}
if ((val & 0xC000000000000000) == 0)
{
val <<= 2;
exp -= 2;
}
if ((val & 0x8000000000000000) == 0)
{
val <<= 1;
exp -= 1;
}
index = absscale & 15;
if (index > 0)
{
int multexp = rgexp64Power10[index - 1];
// the exponents are shared between the inverted and regular table
exp += (scale < 0) ? (-multexp + 1) : multexp;
ulong multval = rgval64Power10[index + ((scale < 0) ? 15 : 0) - 1];
val = Mul64Lossy(val, multval, &exp);
}
index = absscale >> 4;
if (index > 0)
{
int multexp = rgexp64Power10By16[index - 1];
// the exponents are shared between the inverted and regular table
exp += (scale < 0) ? (-multexp + 1) : multexp;
ulong multval = rgval64Power10By16[index + ((scale < 0) ? 21 : 0) - 1];
val = Mul64Lossy(val, multval, &exp);
}
// round & scale down
if (((uint)val & (1 << 10)) > 0)
{
// IEEE round to even
ulong tmp = val + ((1 << 10) - 1) + (((uint)val >> 11) & 1);
if (tmp < val)
{
// overflow
tmp = (tmp >> 1) | 0x8000000000000000;
exp += 1;
}
val = tmp;
}
val >>= 11;
exp += 0x3FE;
if (exp <= 0)
{
if (exp <= -52)
{
// underflow
val = 0;
}
else
{
// denormalized
val >>= (-exp + 1);
}
}
else if (exp >= 0x7FF)
{
// overflow
val = 0x7FF0000000000000;
}
else
{
val = ((ulong)exp << 52) + (val & 0x000FFFFFFFFFFFFF);
}
*(ulong*)value = val;
done:
if (number.sign) *(ulong*)value |= 0x8000000000000000;
}
}
private static unsafe void UInt64ToNumber(ulong value, ref NUMBER number)
{
char* buffer = stackalloc char[ULONG_PRECISION + 1];
number.precision = ULONG_PRECISION;
number.sign = false;
fixed (char* dstPtr = number.digits)
{
char* dst = dstPtr;
char* p = buffer + ULONG_PRECISION;
while ((value & 0xFFFFFFFF00000000) > 0)
{
p = Int32ToDecChars(p, Int64DivMod1E9(&value), 9);
}
p = Int32ToDecChars(p, (uint)value, 0);
int i = (int)(buffer + ULONG_PRECISION - p);
number.scale = i;
while (--i >= 0) *dst++ = *p++;
*dst = '\0';
}
}
private static unsafe void UInt32ToNumber(uint value, ref NUMBER number)
{
char* buffer = stackalloc char[UINT32_PRECISION + 1];
number.precision = UINT32_PRECISION;
number.sign = false;
fixed (char* dstPtr = number.digits)
{
char* dst = dstPtr;
char* p = Int32ToDecChars(buffer + UINT32_PRECISION, value, 0);
int i = (int)(buffer + UINT32_PRECISION - p);
number.scale = i;
while (--i >= 0) *dst++ = *p++;
*dst = '\0';
}
}
public CardData(SIGN sign, NUMBER number)
{
this.Sign = sign;
this.Number = number;
}
private unsafe static void RoundNumber(ref NUMBER number, int pos)
{
fixed (char* digits = number.digits)
{
int i = 0;
while (i < pos && digits[i] != 0)
i++;
if (i == pos && digits[i] >= '5')
{
while (i > 0 && digits[i - 1] == '9')
i--;
if (i > 0)
{
digits[i - 1]++;
}
else
{
number.scale++;
digits[0] = '1';
i = 1;
}
}
else
{
while (i > 0 && digits[i - 1] == '0')
i--;
}
if (i == 0)
{
number.scale = 0;
number.sign = false;
}
digits[i] = '\0';
}
}
private unsafe static char* FormatPercent(char* buffer, ref NUMBER number, int digits, NumberFormatInfo numfmt)
{
char ch;
var fmtStr = number.sign
? negPercentFormats[numfmt.PercentNegativePattern]
: posPercentFormats[numfmt.PercentPositivePattern];
fixed (char* fmtPtr = fmtStr)
{
char* fmt = fmtPtr;
while ((ch = *fmt++) != 0)
{
switch (ch)
{
case '#':
buffer = FormatFixed(
buffer,
ref number,
digits,
numfmt.PercentGroupSizes,
numfmt.PercentDecimalSeparator,
numfmt.PercentGroupSeparator);
break;
case '-':
AddStringRef(&buffer, numfmt.NegativeSign);
break;
case '%':
AddStringRef(&buffer, numfmt.PercentSymbol);
break;
default:
*buffer++ = ch;
break;
}
}
}
return buffer;
}
private unsafe static char* FormatScientific(char* buffer, ref NUMBER number, int digits, char expChar,
NumberFormatInfo numfmt)
{
fixed (char* digPtr = number.digits)
{
char* dig = digPtr;
*buffer++ = *dig != 0 ? *dig++ : '0';
if (digits != 1) // For E0 we would like to suppress the decimal point
AddStringRef(&buffer, numfmt.NumberDecimalSeparator);
while (--digits > 0)
*buffer++ = *dig != 0 ? *dig++ : '0';
int e = digPtr[0] == 0 ? 0 : number.scale - 1;
buffer = FormatExponent(buffer, e, expChar, numfmt.PositiveSign, numfmt.NegativeSign, 3);
return buffer;
}
}
private unsafe static char* FormatGeneral(char* buffer, ref NUMBER number, int digits, char expChar,
NumberFormatInfo numfmt, bool bSuppressScientific = false)
{
int digPos = number.scale;
int scientific = 0;
if (!bSuppressScientific)
{ // Don't switch to scientific notation
if (digPos > digits || digPos < -3)
{
digPos = 1;
scientific = 1;
}
}
fixed (char* digPtr = number.digits)
{
char* dig = digPtr;
if (digPos > 0)
{
do
{
*buffer++ = *dig != 0 ? *dig++ : '0';
} while (--digPos > 0);
}
else
{
*buffer++ = '0';
}
if (*dig != 0 || digPos < 0)
{
AddStringRef(&buffer, numfmt.NumberDecimalSeparator);
while (digPos < 0)
{
*buffer++ = '0';
digPos++;
}
while (*dig != 0)
{
*buffer++ = *dig++;
}
}
if (scientific > 0)
buffer = FormatExponent(
buffer,
number.scale - 1,
expChar,
numfmt.PositiveSign,
numfmt.NegativeSign,
2);
}
return buffer;
}
private unsafe static char* FormatFixed(char* buffer, ref NUMBER number, int digits,
int[] groupDigits, string sDecimal, string sGroup)
{
int digPos = number.scale;
fixed (char* digPtr = number.digits)
{
char* dig = digPtr;
if (digPos > 0)
{
if (groupDigits != null)
{
int groupSizeIndex = 0; // index into the groupDigits array.
int groupSizeCount = groupDigits[groupSizeIndex]; // the current total of group size.
int groupSizeLen = groupDigits.Length; // the length of groupDigits array.
int bufferSize = digPos; // the length of the result buffer string.
int groupSeparatorLen = sGroup.Length; // the length of the group separator string.
int groupSize = 0; // the current group size.
//
// Find out the size of the string buffer for the result.
//
if (groupSizeLen != 0) // You can pass in 0 length arrays
{
while (digPos > groupSizeCount)
{
groupSize = groupDigits[groupSizeIndex];
if (groupSize == 0)
{
break;
}
bufferSize += groupSeparatorLen;
if (groupSizeIndex < groupSizeLen - 1)
{
groupSizeIndex++;
}
groupSizeCount += groupDigits[groupSizeIndex];
if (groupSizeCount < 0 || bufferSize < 0)
{
throw new ArgumentOutOfRangeException(); // if we overflow
}
}
if (groupSizeCount == 0)
// If you passed in an array with one entry as 0, groupSizeCount == 0
groupSize = 0;
else
groupSize = groupDigits[0];
}
groupSizeIndex = 0;
int digitCount = 0;
int digStart;
int digLength = (int)wcslen(dig);
digStart = (digPos < digLength) ? digPos : digLength;
char* p = buffer + bufferSize - 1;
for (int i = digPos - 1; i >= 0; i--)
{
*(p--) = (i < digStart) ? dig[i] : '0';
if (groupSize > 0)
{
digitCount++;
if (digitCount == groupSize && i != 0)
{
for (int j = groupSeparatorLen - 1; j >= 0; j--)
{
*(p--) = sGroup[j];
}
if (groupSizeIndex < groupSizeLen - 1)
{
groupSizeIndex++;
groupSize = groupDigits[groupSizeIndex];
}
digitCount = 0;
}
}
}
if (p < buffer - 1)
{
// This indicates a buffer underflow since we write in backwards.
throw new OutOfMemoryException();
}
buffer += bufferSize;
dig += digStart;
}
else
{
do
{
*buffer++ = *dig != 0 ? *dig++ : '0';
} while (--digPos > 0);
}
}
else
{
*buffer++ = '0';
}
if (digits > 0)
{
AddStringRef(&buffer, sDecimal);
while (digPos < 0 && digits > 0)
{
*buffer++ = '0';
digPos++;
digits--;
}
while (digits > 0)
{
*buffer++ = *dig != 0 ? *dig++ : '0';
digits--;
}
}
}
return buffer;
}
private unsafe static Boolean NumberToInt64(ref NUMBER number, ref Int64 value)
{
Int32 i = number.scale;
if (i > Int64Precision || i < number.precision)
{
return false;
}
fixed (char* digits = number.digits)
{
char* p = digits;
Int64 n = 0;
while (--i >= 0)
{
if ((UInt64)n > (0x7FFFFFFFFFFFFFFF / 10))
{
return false;
}
n *= 10;
if (*p != '\0')
{
n += (Int32)(*p++ - '0');
}
}
if (number.sign)
{
n = -n;
if (n > 0)
{
return false;
}
}
else
{
if (n < 0)
{
return false;
}
}
value = n;
return true;
}
}
public static object ParseExcelType(string str, string type)
{
if (INT.Equals(type))
{
if (string.IsNullOrEmpty(str))
{
return(0);
}
return(int.Parse(str));
}
else if (NUMBER.Equals(type))
{
if (string.IsNullOrEmpty(str))
{
return(0);
}
return(LockStepConst.ParseInLevelInt(str));
}
else if (FLOAT.Equals(type))
{
if (string.IsNullOrEmpty(str))
{
return(0);
}
return(float.Parse(str));
}
else if (STRING.Equals(type))
{
return(str);
}
else if (BOOL.Equals(type))
{
return("true".Equals(str.ToLower()));
}
else if (LINT.Equals(type))
{
string[] p = str.SplitStringBySplits();
List <int> result = new List <int>(p.Length);
for (int i = 0; i < p.Length; i++)
{
if (string.IsNullOrEmpty(str))
{
result.Add(0);
}
else
{
result.Add(int.Parse(p[i]));
}
}
return(result);
}
else if (LNUMBER.Equals(type))
{
string[] p = str.SplitStringBySplits();
List <int> result = new List <int>(p.Length);
for (int i = 0; i < p.Length; i++)
{
if (string.IsNullOrEmpty(str))
{
result.Add(0);
}
else
{
result.Add(LockStepConst.ParseInLevelInt(p[i]));
}
}
return(result);
}
else if (LFLOAT.Equals(type))
{
string[] p = str.SplitStringBySplits();
List <float> result = new List <float>(p.Length);
for (int i = 0; i < p.Length; i++)
{
if (string.IsNullOrEmpty(str))
{
result.Add(0);
}
else
{
result.Add(float.Parse(p[i]));
}
}
return(result);
}
else if (LSTRING.Equals(type))
{
string[] p = str.SplitStringBySplits();
List <string> result = new List <string>(p.Length);
for (int i = 0; i < p.Length; i++)
{
result.Add(p[i]);
}
return(result);
}
else if (LBOOL.Equals(type))
{
string[] p = str.SplitStringBySplits();
List <bool> result = new List <bool>(p.Length);
for (int i = 0; i < p.Length; i++)
{
result.Add("true".Equals(str));
}
return(result);
}
return(null);
}
internal unsafe static Decimal ParseDecimal(String value, NumberStyles options, NumberFormatInfo numfmt)
{
NUMBER number = new NUMBER();
Decimal result = 0;
StringToNumber(value, options, ref number, numfmt, true);
if (!NumberBufferToDecimal(ref number, ref result))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Decimal"));
}
return result;
}
internal unsafe static Boolean TryStringToNumber(String str, NumberStyles options, ref NUMBER number, StringBuilder sb, NumberFormatInfo numfmt, Boolean parseDecimal)
{
if (str == null)
{
return false;
}
fixed (char* stringPointer = str)
{
char* p = stringPointer;
if (!ParseNumber(ref p, options, ref number, sb, numfmt, parseDecimal)
|| (p - stringPointer < str.Length && !TrailingZeros(str, (int)(p - stringPointer))))
{
return false;
}
}
return true;
}
internal unsafe static Int32 ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
{
NUMBER number = new NUMBER();
Int32 i = 0;
StringToNumber(s, style, ref number, info, false);
if ((style & NumberStyles.AllowHexSpecifier) != 0)
{
if (!HexNumberToInt32(ref number, ref i))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
}
}
else
{
if (!NumberToInt32(ref number, ref i))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
}
}
return i;
}
private static unsafe void Int64ToNumber(long value, ref NUMBER number)
{
char* buffer = stackalloc char[LONG_PRECISION + 1];
number.precision = LONG_PRECISION;
if (value >= 0)
{
number.sign = false;
}
else
{
number.sign = true;
}
fixed (char* dstPtr = number.digits)
{
char* dst = dstPtr;
char* p = buffer + LONG_PRECISION;
if (value >= 0)
{
while (((ulong)value & 0xFFFFFFFF00000000) > 0)
{
p = Int32ToDecChars(p, Int64DivMod1E9(&value), 9);
}
}
else
{
while ((((ulong)value ^ 0xFFFFFFFF00000000) >> 32) > 0)
{
p = Int32ToDecChars(p, Int64DivMod1E9(&value), 9);
}
}
p = Int32ToDecChars(p, (int)value, 0);
int i = (int)(buffer + LONG_PRECISION - p);
number.scale = i;
while (--i >= 0) *dst++ = *p++;
*dst = '\0';
}
}
private unsafe static Boolean ParseNumber(ref char* str, NumberStyles options, ref NUMBER number, StringBuilder sb, NumberFormatInfo numfmt, Boolean parseDecimal)
{
const Int32 StateSign = 0x0001;
const Int32 StateParens = 0x0002;
const Int32 StateDigits = 0x0004;
const Int32 StateNonZero = 0x0008;
const Int32 StateDecimal = 0x0010;
const Int32 StateCurrency = 0x0020;
number.scale = 0;
number.sign = false;
string decSep; // decimal separator from NumberFormatInfo.
string groupSep; // group separator from NumberFormatInfo.
string currSymbol = null; // currency symbol from NumberFormatInfo.
// The alternative currency symbol used in ANSI codepage, that can not roundtrip between ANSI and Unicode.
// Currently, only ja-JP and ko-KR has non-null values (which is U+005c, backslash)
string ansicurrSymbol = null; // currency symbol from NumberFormatInfo.
string altdecSep = null; // decimal separator from NumberFormatInfo as a decimal
string altgroupSep = null; // group separator from NumberFormatInfo as a decimal
Boolean parsingCurrency = false;
if ((options & NumberStyles.AllowCurrencySymbol) != 0)
{
currSymbol = numfmt.CurrencySymbol;
if (numfmt.ansiCurrencySymbol != null)
{
ansicurrSymbol = numfmt.ansiCurrencySymbol;
}
// The idea here is to match the currency separators and on failure match the number separators to keep the perf of VB's IsNumeric fast.
// The values of decSep are setup to use the correct relevant separator (currency in the if part and decimal in the else part).
altdecSep = numfmt.NumberDecimalSeparator;
altgroupSep = numfmt.NumberGroupSeparator;
decSep = numfmt.CurrencyDecimalSeparator;
groupSep = numfmt.CurrencyGroupSeparator;
parsingCurrency = true;
}
else
{
decSep = numfmt.NumberDecimalSeparator;
groupSep = numfmt.NumberGroupSeparator;
}
Int32 state = 0;
Boolean signflag = false; // Cache the results of "options & PARSE_LEADINGSIGN && !(state & STATE_SIGN)" to avoid doing this twice
Boolean bigNumber = (sb != null); // When a StringBuilder is provided then we use it in place of the number.digits char[50]
Boolean bigNumberHex = (bigNumber && ((options & NumberStyles.AllowHexSpecifier) != 0));
Int32 maxParseDigits = bigNumber ? Int32.MaxValue : NumberMaxDigits;
fixed (char* digits = number.digits)
{
char* p = str;
char ch = *p;
char* next;
while (true)
{
// Eat whitespace unless we've found a sign which isn't followed by a currency symbol.
// "-Kr 1231.47" is legal but "- 1231.47" is not.
if (IsWhite(ch) && ((options & NumberStyles.AllowLeadingWhite) != 0)
&& (((state & StateSign) == 0) || (((state & StateSign) != 0) && (((state & StateCurrency) != 0) || numfmt.numberNegativePattern == 2))))
{
// Do nothing here. We will increase p at the end of the loop.
}
else if ((signflag = (((options & NumberStyles.AllowLeadingSign) != 0) && ((state & StateSign) == 0)))
&& ((next = MatchChars(p, numfmt.positiveSign)) != null))
{
state |= StateSign;
p = next - 1;
}
else if (signflag && (next = MatchChars(p, numfmt.negativeSign)) != null)
{
state |= StateSign;
number.sign = true;
p = next - 1;
}
else if (ch == '(' && ((options & NumberStyles.AllowParentheses) != 0) && ((state & StateSign) == 0))
{
state |= StateSign | StateParens;
number.sign = true;
}
else if ((currSymbol != null && (next = MatchChars(p, currSymbol)) != null)
|| (ansicurrSymbol != null && (next = MatchChars(p, ansicurrSymbol)) != null))
{
state |= StateCurrency;
currSymbol = null;
ansicurrSymbol = null;
// We already found the currency symbol. There should not be more currency symbols. Set
// currSymbol to null so that we won't search it again in the later code path.
p = next - 1;
}
else
{
break;
}
ch = *++p;
}
Int32 digCount = 0;
Int32 digEnd = 0;
while (true)
{
if ((ch >= '0' && ch <= '9')
|| (((options & NumberStyles.AllowHexSpecifier) != 0) && ((ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F'))))
{
state |= StateDigits;
if (ch != '0' || (state & StateNonZero) != 0 || bigNumberHex)
{
if (digCount < maxParseDigits)
{
if (bigNumber) sb.Append(ch);
else digits[digCount++] = ch;
if (ch != '0' || parseDecimal)
{
digEnd = digCount;
}
}
if ((state & StateDecimal) == 0)
{
number.scale++;
}
state |= StateNonZero;
}
else if ((state & StateDecimal) != 0)
{
number.scale--;
}
}
else if (((options & NumberStyles.AllowDecimalPoint) != 0) && ((state & StateDecimal) == 0)
&& ((next = MatchChars(p, decSep)) != null
|| ((parsingCurrency) && (state & StateCurrency) == 0) && (next = MatchChars(p, altdecSep)) != null))
{
state |= StateDecimal;
p = next - 1;
}
else if (((options & NumberStyles.AllowThousands) != 0) && ((state & StateDigits) != 0) && ((state & StateDecimal) == 0)
&& ((next = MatchChars(p, groupSep)) != null
|| ((parsingCurrency) && (state & StateCurrency) == 0) && (next = MatchChars(p, altgroupSep)) != null))
{
p = next - 1;
}
else
{
break;
}
ch = *++p;
}
Boolean negExp = false;
number.precision = digEnd;
if (bigNumber) sb.Append('\0');
else digits[digEnd] = '\0';
if ((state & StateDigits) != 0)
{
if ((ch == 'E' || ch == 'e') && ((options & NumberStyles.AllowExponent) != 0))
{
char* temp = p;
ch = *++p;
if ((next = MatchChars(p, numfmt.positiveSign)) != null)
{
ch = *(p = next);
}
else if ((next = MatchChars(p, numfmt.negativeSign)) != null)
{
ch = *(p = next);
negExp = true;
}
if (ch >= '0' && ch <= '9')
{
Int32 exp = 0;
do
{
exp = exp * 10 + (ch - '0');
ch = *++p;
if (exp > 1000)
{
exp = 9999;
while (ch >= '0' && ch <= '9')
{
ch = *++p;
}
}
}
while (ch >= '0' && ch <= '9');
if (negExp)
{
exp = -exp;
}
number.scale += exp;
}
else
{
p = temp;
ch = *p;
}
}
while (true)
{
if (IsWhite(ch) && ((options & NumberStyles.AllowTrailingWhite) != 0))
{
}
else if ((signflag = (((options & NumberStyles.AllowTrailingSign) != 0) && ((state & StateSign) == 0)))
&& (next = MatchChars(p, numfmt.positiveSign)) != null)
{
state |= StateSign;
p = next - 1;
}
else if (signflag && (next = MatchChars(p, numfmt.negativeSign)) != null)
{
state |= StateSign;
number.sign = true;
p = next - 1;
}
else if (ch == ')' && ((state & StateParens) != 0))
{
state &= ~StateParens;
}
else if ((currSymbol != null && (next = MatchChars(p, currSymbol)) != null)
|| (ansicurrSymbol != null && (next = MatchChars(p, ansicurrSymbol)) != null))
{
currSymbol = null;
ansicurrSymbol = null;
p = next - 1;
}
else
{
break;
}
ch = *++p;
}
if ((state & StateParens) == 0)
{
if ((state & StateNonZero) == 0)
{
if (!parseDecimal)
{
number.scale = 0;
}
if ((state & StateDecimal) == 0)
{
number.sign = false;
}
}
str = p;
return true;
}
}
str = p;
return false;
}
}
private unsafe static void DoubleToNumber(double value, int precision, ref NUMBER number)
{
fixed (char* dstPtr = number.digits)
{
if ((*(ulong*)(&value) & 0x7FFFFFFFFFFFFFFFL) >= 0x7FF0000000000000L)
{
var isNaN = Double.IsNaN(value);
number.scale = isNaN ? SCALE_NAN : SCALE_INF;
number.sign = Double.IsNegative(value);
number.isNan = isNaN;
number.isInf = !isNaN;
*dstPtr = '\0';
return;
}
number.precision = precision;
char* dst = dstPtr;
char* src = DoubleHelper.ecvt(value, precision, ref number.scale, ref number.sign);
if (*src != '0')
{
while (*src > 0) *dst++ = *src++;
}
*dst = '\0';
}
}
internal unsafe static Single ParseSingle(String value, NumberStyles options, NumberFormatInfo numfmt)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
NUMBER number = new NUMBER();
Double d = 0;
if (!TryStringToNumber(value, options, ref number, numfmt, false))
{
//If we failed TryStringToNumber, it may be from one of our special strings.
//Check the three with which we're concerned and rethrow if it's not one of
//those strings.
String sTrim = value.Trim();
if (sTrim.Equals(numfmt.PositiveInfinitySymbol))
{
return Single.PositiveInfinity;
}
if (sTrim.Equals(numfmt.NegativeInfinitySymbol))
{
return Single.NegativeInfinity;
}
if (sTrim.Equals(numfmt.NaNSymbol))
{
return Single.NaN;
}
throw new FormatException(Environment.GetResourceString("Format_InvalidString"));
}
if (!NumberBufferToDouble(ref number, ref d))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Single"));
}
Single castSingle = (Single)d;
if (Single.IsInfinity(castSingle))
{
throw new OverflowException(Environment.GetResourceString("Overflow_Single"));
}
return castSingle;
}
public static String FormatUInt64(ulong value, String format, NumberFormatInfo info)
{
int digits;
var fmt = ParseFormatSpecifier(format, out digits);
var retString = string.Empty;
NUMBER number;
//ANDing fmt with FFDF has the effect of uppercasing the character because
//we've removed the bit that marks lower-case.
switch (fmt & 0xFFDF)
{
case 'G':
if (digits > 0)
{
number = new NUMBER();
UInt64ToNumber(value, ref number);
if (fmt != 0)
{
retString = NumberToString(ref number, fmt, digits, info);
break;
}
retString = NumberToStringFormat(ref number, format, info);
break;
}
goto case 'D';
// fall through
case 'D':
retString = UInt64ToDecStr(value, digits);
break;
case 'X':
retString = Int64ToHexStr(value, fmt - ('X' - 'A' + 10), digits);
break;
default:
number = new NUMBER();
UInt64ToNumber(value, ref number);
if (fmt != 0)
{
retString = NumberToString(ref number, fmt, digits, info);
break;
}
retString = NumberToStringFormat(ref number, format, info);
break;
}
return retString;
}
internal unsafe static UInt64 ParseUInt64(String value, NumberStyles options, NumberFormatInfo numfmt)
{
NUMBER number = new NUMBER();
UInt64 i = 0;
StringToNumber(value, options, ref number, numfmt, false);
if ((options & NumberStyles.AllowHexSpecifier) != 0)
{
if (!HexNumberToUInt64(ref number, ref i))
{
throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
}
}
else
{
if (!NumberToUInt64(ref number, ref i))
{
throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
}
}
return i;
}
public unsafe static Boolean NumberBufferToDecimal(ref NUMBER number, ref Decimal value)
{
throw new NotImplementedException();
}
private unsafe static void StringToNumber(String str, NumberStyles options, ref NUMBER number, NumberFormatInfo info, Boolean parseDecimal)
{
if (str == null)
{
throw new ArgumentNullException("String");
}
fixed (char* stringPointer = str)
{
char* p = stringPointer;
if (!ParseNumber(ref p, options, ref number, null, info, parseDecimal)
|| (p - stringPointer < str.Length && !TrailingZeros(str, (int)(p - stringPointer))))
{
throw new FormatException(Environment.GetResourceString("Format_InvalidString"));
}
}
}
internal static unsafe string FormatNumberBuffer(ref NUMBER number, string format, NumberFormatInfo info, char* allDigits)
{
throw new NotImplementedException();
}
internal unsafe static Boolean TryParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt, out Double result)
{
NUMBER number = new NUMBER();
result = 0;
if (!TryStringToNumber(value, options, ref number, numfmt, false))
{
return false;
}
if (!NumberBufferToDouble(ref number, ref result))
{
return false;
}
return true;
}
private unsafe static Boolean HexNumberToUInt64(ref NUMBER number, ref UInt64 value)
{
Int32 i = number.scale;
if (i > UInt64Precision || i < number.precision)
{
return false;
}
fixed (Char* digits = number.digits)
{
Char* p = digits;
UInt64 n = 0;
while (--i >= 0)
{
if (n > (0xFFFFFFFFFFFFFFFF / 16))
{
return false;
}
n *= 16;
if (*p != '\0')
{
UInt64 newN = n;
if (*p != '\0')
{
if (*p >= '0' && *p <= '9')
{
newN += (UInt64)(*p - '0');
}
else
{
if (*p >= 'A' && *p <= 'F')
{
newN += (UInt64)((*p - 'A') + 10);
}
else
{
newN += (UInt64)((*p - 'a') + 10);
}
}
p++;
}
// Detect an overflow here...
if (newN < n)
{
return false;
}
n = newN;
}
}
value = n;
return true;
}
}
internal unsafe static Boolean TryParseSingle(String value, NumberStyles options, NumberFormatInfo numfmt, out Single result)
{
NUMBER number = new NUMBER();
result = 0;
Double d = 0;
if (!TryStringToNumber(value, options, ref number, numfmt, false))
{
return false;
}
if (!NumberBufferToDouble(ref number, ref d))
{
return false;
}
Single castSingle = (Single)d;
if (Single.IsInfinity(castSingle))
{
return false;
}
result = castSingle;
return true;
}
private unsafe static Boolean NumberToUInt32(ref NUMBER number, ref UInt32 value)
{
Int32 i = number.scale;
if (i > UInt32Precision || i < number.precision || number.sign)
{
return false;
}
fixed (char* digits = number.digits)
{
char* p = digits;
UInt32 n = 0;
while (--i >= 0)
{
if (n > (0xFFFFFFFF / 10))
{
return false;
}
n *= 10;
if (*p != '\0')
{
UInt32 newN = n + (UInt32)(*p++ - '0');
// Detect an overflow here...
if (newN < n)
{
return false;
}
n = newN;
}
}
value = n;
return true;
}
}
internal unsafe static Boolean TryParseUInt64(String s, NumberStyles style, NumberFormatInfo info, out UInt64 result)
{
NUMBER number = new NUMBER();
result = 0;
if (!TryStringToNumber(s, style, ref number, info, false))
{
return false;
}
if ((style & NumberStyles.AllowHexSpecifier) != 0)
{
if (!HexNumberToUInt64(ref number, ref result))
{
return false;
}
}
else
{
if (!NumberToUInt64(ref number, ref result))
{
return false;
}
}
return true;
}
internal static Boolean TryStringToNumber(String str, NumberStyles options, ref NUMBER number, NumberFormatInfo numfmt, Boolean parseDecimal)
{
return TryStringToNumber(str, options, ref number, null, numfmt, parseDecimal);
}
public CardData()
{
Sign = SIGN.Spade;
Number = NUMBER.NotANumber;
}