public static TdsInt32 Sign (TdsDecimal n)
{
throw new NotImplementedException ();
}
public static TdsDecimal Subtract (TdsDecimal x, TdsDecimal y)
{
return (x - y);
}
public static TdsBoolean NotEquals (TdsDecimal x, TdsDecimal y)
{
return (x != y);
}
public static TdsDecimal Power (TdsDecimal n, double exp)
{
throw new NotImplementedException ();
}
public static TdsBoolean LessThanOrEqual (TdsDecimal x, TdsDecimal y)
{
return (x <= y);
}
public static TdsDecimal Multiply (TdsDecimal x, TdsDecimal y)
{
return (x * y);
}
public static TdsBoolean GreaterThanOrEqual (TdsDecimal x, TdsDecimal y)
{
return (x >= y);
}
public static TdsDecimal AdjustScale (TdsDecimal n, int digits, bool fRound)
{
throw new NotImplementedException ();
}
public static TdsDecimal Floor (TdsDecimal n)
{
throw new NotImplementedException ();
}
public static TdsBoolean GreaterThan (TdsDecimal x, TdsDecimal y)
{
return (x > y);
}
public static TdsDecimal Divide (TdsDecimal x, TdsDecimal y)
{
return (x / y);
}
public static TdsDecimal ConvertToPrecScale (TdsDecimal n, int precision, int scale)
{
throw new NotImplementedException ();
}
public static TdsDecimal Ceiling (TdsDecimal n)
{
throw new NotImplementedException();
}
public static TdsDecimal Truncate (TdsDecimal n, int position)
{
throw new NotImplementedException ();
}
public static TdsBoolean LessThan (TdsDecimal x, TdsDecimal y)
{
return (x < y);
}
public static TdsDecimal operator - (TdsDecimal x, TdsDecimal y)
{
if (x.IsPositive && !y.IsPositive) return x + y;
if (!x.IsPositive && y.IsPositive) return -(x + y);
if (!x.IsPositive && !y.IsPositive) return y - x;
// otherwise, x is positive and y is positive
bool resultPositive = (bool)(x > y);
int[] yData = y.Data;
for (int i = 0; i < 4; i += 1) yData[i] = -yData[i];
TdsDecimal yInverse = new TdsDecimal (y.Precision, y.Scale, y.IsPositive, yData);
if (resultPositive)
return x + yInverse;
else
return -(x + yInverse);
}
public static TdsDecimal Add (TdsDecimal x, TdsDecimal y)
{
return (x + y);
}
