本文整理汇总了C#中System.Data.SqlTypes.SqlDecimal.FGt10_38方法的典型用法代码示例。如果您正苦于以下问题：C# SqlDecimal.FGt10_38方法的具体用法？C# SqlDecimal.FGt10_38怎么用？C# SqlDecimal.FGt10_38使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.SqlTypes.SqlDecimal的用法示例。
在下文中一共展示了SqlDecimal.FGt10_38方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: result
//.........这里部分代码省略.........
// Calculate actual result length
culRes = idRes + 1;
// III) Adjust precision,scale to result prec,scale
if (lScaleAdjust != 0)
{
// If need to decrease scale
if (lScaleAdjust < 0)
{
Debug.Assert(s_NUMERIC_MAX_PRECISION == ResPrec);
// have to adjust - might yet end up fitting.
// Cannot call AdjustScale - number cannot fit in a numeric, so
// have to duplicate code here
uint ulRem; //Remainder when downshifting
uint ulShiftBase; //What to multiply by to effect scale adjust
do
{
if (lScaleAdjust <= -9)
{
ulShiftBase = s_rgulShiftBase[8];
lScaleAdjust += 9;
}
else
{
ulShiftBase = s_rgulShiftBase[-lScaleAdjust - 1];
lScaleAdjust = 0;
}
MpDiv1(rgulRes, ref culRes, ulShiftBase, out ulRem);
}
while (lScaleAdjust != 0);
// Still do not fit?
if (culRes > s_cNumeMax)
throw new OverflowException(SQLResource.ArithOverflowMessage);
for (idRes = culRes; idRes < s_cNumeMax; idRes++)
rgulRes[idRes] = 0;
ret = new SqlDecimal(rgulRes, (byte)culRes, (byte)ResPrec, (byte)ResScale, fResPositive);
// Is it greater than 10**38?
if (ret.FGt10_38())
throw new OverflowException(SQLResource.ArithOverflowMessage);
ret.AssertValid();
// If remainder is 5 or above, increment/decrement by 1.
if (ulRem >= ulShiftBase / 2)
ret.AddULong(1);
// After adjusting, if the result is 0 and remainder is less than 5,
// set the sign to be positive
if (ret.FZero())
ret.SetPositive();
return ret;
}
// Otherwise call AdjustScale
if (culRes > s_cNumeMax) // Do not fit now, so will not fit after adjustment
throw new OverflowException(SQLResource.ArithOverflowMessage);
// NOTE: Have not check for value in the range (10**38..2**128),
// as we'll call AdjustScale with positive argument, and it'll
// return "normal" overflow
for (idRes = culRes; idRes < s_cNumeMax; idRes++)
rgulRes[idRes] = 0;
ret = new SqlDecimal(rgulRes, (byte)culRes, (byte)ResPrec, (byte)ActualScale, fResPositive);
if (ret.FZero())
ret.SetPositive();
ret.AssertValid();
ret.AdjustScale(lScaleAdjust, true);
return ret;
}
else
{
if (culRes > s_cNumeMax)
throw new OverflowException(SQLResource.ArithOverflowMessage);
for (idRes = culRes; idRes < s_cNumeMax; idRes++)
rgulRes[idRes] = 0;
ret = new SqlDecimal(rgulRes, (byte)culRes, (byte)ResPrec, (byte)ResScale, fResPositive);
// Is it greater than 10**38?
if (ret.FGt10_38())
throw new OverflowException(SQLResource.ArithOverflowMessage);
if (ret.FZero())
ret.SetPositive();
ret.AssertValid();
return ret;
}
}示例2: while
public static SqlDecimal operator *(SqlDecimal x, SqlDecimal y)
{
SqlDecimal num11;
if (x.IsNull || y.IsNull)
{
return Null;
}
int bLen = y.m_bLen;
int num10 = x.m_bScale + y.m_bScale;
int num3 = num10;
int num13 = ((x.m_bPrec - x.m_bScale) + (y.m_bPrec - y.m_bScale)) + 1;
int num6 = num3 + num13;
if (num6 > NUMERIC_MAX_PRECISION)
{
num6 = NUMERIC_MAX_PRECISION;
}
if (num3 > NUMERIC_MAX_PRECISION)
{
num3 = NUMERIC_MAX_PRECISION;
}
num3 = Math.Max(Math.Min(num6 - num13, num3), Math.Min(num10, x_cNumeDivScaleMin));
int digits = num3 - num10;
bool fPositive = x.IsPositive == y.IsPositive;
uint[] numArray5 = new uint[] { x.m_data1, x.m_data2, x.m_data3, x.m_data4 };
uint[] numArray4 = new uint[] { y.m_data1, y.m_data2, y.m_data3, y.m_data4 };
uint[] rgulU = new uint[9];
int index = 0;
for (int i = 0; i < x.m_bLen; i++)
{
uint num16 = numArray5[i];
ulong num2 = 0L;
index = i;
for (int j = 0; j < bLen; j++)
{
ulong num7 = num2 + rgulU[index];
ulong num15 = numArray4[j];
num2 = num16 * num15;
num2 += num7;
if (num2 < num7)
{
num7 = x_ulInt32Base;
}
else
{
num7 = 0L;
}
rgulU[index++] = (uint) num2;
num2 = (num2 >> 0x20) + num7;
}
if (num2 != 0L)
{
rgulU[index++] = (uint) num2;
}
}
while ((rgulU[index] == 0) && (index > 0))
{
index--;
}
int ciulU = index + 1;
if (digits != 0)
{
if (digits < 0)
{
uint num12;
uint num14;
do
{
if (digits <= -9)
{
num12 = x_rgulShiftBase[8];
digits += 9;
}
else
{
num12 = x_rgulShiftBase[-digits - 1];
digits = 0;
}
MpDiv1(rgulU, ref ciulU, num12, out num14);
}
while (digits != 0);
if (ciulU > x_cNumeMax)
{
throw new OverflowException(SQLResource.ArithOverflowMessage);
}
for (index = ciulU; index < x_cNumeMax; index++)
{
rgulU[index] = 0;
}
num11 = new SqlDecimal(rgulU, (byte) ciulU, (byte) num6, (byte) num3, fPositive);
if (num11.FGt10_38())
{
throw new OverflowException(SQLResource.ArithOverflowMessage);
}
if (num14 >= (num12 / 2))
{
num11.AddULong(1);
}
if (num11.FZero())
{
num11.SetPositive();
//.........这里部分代码省略.........
示例3: OverflowException
//.........这里部分代码省略.........
// When sign of first operand is negative
// negate all operands including result.
if (!fMySignPos)
{
fMySignPos = !fMySignPos;
fOpSignPos = !fOpSignPos;
fResSignPos = !fResSignPos;
}
// Initialize operand lengths and pointer.
culOp1 = x.m_bLen;
culOp2 = y.m_bLen;
uint[] rglData1 = new uint[4] { x.m_data1, x.m_data2, x.m_data3, x.m_data4 };
uint[] rglData2 = new uint[4] { y.m_data1, y.m_data2, y.m_data3, y.m_data4 };
if (fOpSignPos)
{
dwlAccum = 0;
// CONSIDER: Call AddUlong when possible
// Loop through UI4s adding operands and putting result in *this
// of the operands and put result in *this
for (iulData = 0; iulData < culOp1 || iulData < culOp2; iulData++)
{
// None of these DWORDLONG additions can overflow, as dwlAccum comes in < x_lInt32Base
if (iulData < culOp1)
dwlAccum += rglData1[iulData];
if (iulData < culOp2)
dwlAccum += rglData2[iulData];
rglData1[iulData] = (uint)dwlAccum; // equiv to mod x_lInt32Base
dwlAccum >>= 32; // equiv to div x_lInt32Base
}
//If carry
if (dwlAccum != 0)
{
Debug.Assert(dwlAccum < s_ulInt32Base);
//Either overflowed
if (iulData == s_cNumeMax)
throw new OverflowException(SQLResource.ArithOverflowMessage);
// Or extended length
rglData1[iulData] = (uint)dwlAccum;
iulData++;
}
// Set result length
bLen = (byte)iulData;
}
else
{
int iulLastNonZero = 0; // The last nonzero UI
// When second operand is negative, switch operands
// if operand2 is greater than operand1
if (x.LAbsCmp(y) < 0)
{
fResSignPos = !fResSignPos;
uint[] rguiTemp = rglData2;
rglData2 = rglData1;
rglData1 = rguiTemp;
culOp1 = culOp2;
culOp2 = x.m_bLen;
}
dwlAccum = s_ulInt32Base;
for (iulData = 0; iulData < culOp1 || iulData < culOp2; iulData++)
{
if (iulData < culOp1)
dwlAccum += rglData1[iulData];
if (iulData < culOp2)
dwlAccum -= rglData2[iulData];
rglData1[iulData] = (uint)dwlAccum; // equiv to mod BaseUI4
if (rglData1[iulData] != 0)
iulLastNonZero = iulData;
dwlAccum >>= 32; // equiv to /= BaseUI4
dwlAccum += s_ulInt32BaseForMod; // equiv to BaseUI4 - 1
}
// Set length based on highest non-zero ULONG
bLen = (byte)(iulLastNonZero + 1);
}
SqlDecimal ret = new SqlDecimal(rglData1, bLen, (byte)ResPrec, (byte)ResScale, fResSignPos);
if (ret.FGt10_38() || ret.CalculatePrecision() > s_NUMERIC_MAX_PRECISION)
throw new OverflowException(SQLResource.ArithOverflowMessage);
if (ret.FZero())
ret.SetPositive();
ret.AssertValid();
return ret;
}