private void FixupFloatMinus(double value)
{
// Ruby always appends a minus sign even if precision is 0 and the value would appear to be zero.
// sprintf("%.0f", -0.1) => "-0"
// Ruby also displays a "-0.0" for a negative zero whereas the CLR displays just "0.0"
bool fNeedMinus;
if (value == 0.0)
{
fNeedMinus = FloatOps.IsNegativeZero(value);
}
else
{
fNeedMinus = true;
for (int i = 0; i < _buf.Length; i++)
{
char c = _buf[i];
if (c != '.' && c != '0' && c != ' ')
{
fNeedMinus = false;
break;
}
}
}
if (fNeedMinus)
{
if (_opts.FieldWidth != 0)
{
// trim us back down to the correct field width...
if (_buf[_buf.Length - 1] == ' ')
{
_buf.Insert(0, "-");
_buf.Remove(_buf.Length - 1, 1);
}
else
{
int index = 0;
while (_buf[index] == ' ')
{
index++;
}
if (index > 0)
{
index--;
}
_buf[index] = '-';
}
}
else
{
_buf.Insert(0, "-");
}
}
}
public static object Truncate(RubyContext /*!*/ context, object self)
{
double floatSelf = Protocols.ConvertToFloat(context, self);
return(FloatOps.ToInt(floatSelf));
}
public static object Floor(RubyContext /*!*/ context, object self)
{
return(FloatOps.Floor(Protocols.ConvertToFloat(context, self)));
}
public static object Round(RubyContext /*!*/ context, object self)
{
double floatSelf = Protocols.ConvertToFloat(context, self);
return(FloatOps.Round(floatSelf));
}
public static object Compare(RubyContext /*!*/ context, BigInteger /*!*/ self, double other)
{
return(FloatOps.Compare(ToFloat(context, self), other));
}
