public virtual long DecodeIntValue(int length, bool signExtend)
{
return(Asn1RunTime.DecodeIntValue(this, length, signExtend));
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var length = explicitTagging ? MatchTag(buffer, Tag) : implicitLength;
if (length == 0)
{
Value = 0.0;
}
else
{
var num2 = buffer.ReadByte();
if (length == 1)
{
switch (num2)
{
case PlusInfinity:
Value = double.PositiveInfinity;
return;
case MinusInfinity:
Value = double.NegativeInfinity;
return;
}
throw new Exception("Asn1InvalidFormatOfConstructedValue");
}
length--;
if ((num2 & RealBinary) == 0)
{
var num8 = length;
var num9 = 0;
var builder = new StringBuilder {
Length = num8
};
while (num8 > 0)
{
var num7 = buffer.Read();
if (num7 == -1)
{
throw new Exception("Asn1EndOfBufferException");
}
builder[num9++] = (char)num7;
num8--;
}
var num10 = num2 & RealIso6093Mask;
var num11 = 0;
for (var i = 0; i < builder.Length; i++)
{
var ch = builder[i];
if ((num10 >= 2) && (ch == ','))
{
builder[i] = '.';
num11++;
}
else if (((num10 >= 1) && (((ch >= '0') && (ch <= '9')) || ((ch == '+') || (ch == '-')))) || (((num10 >= 2) && (ch == '.')) || ((num10 == 3) && ((ch == 'E') || (ch == 'e')))))
{
num11++;
}
else if ((num11 != 0) || (ch != ' '))
{
throw new Exception("Asn1InvalidFormatOfConstructedValue");
}
}
try
{
Value = double.Parse(builder.ToString());
}
catch (FormatException)
{
throw new Exception("Asn1InvalidFormatOfConstructedValue");
}
}
else
{
int num6;
int num3;
switch ((num2 & RealExplenMask))
{
case RealExplen1:
num3 = 1;
break;
case RealExplen2:
num3 = 2;
break;
case RealExplen3:
num3 = 3;
break;
default:
num3 = buffer.ReadByte();
length--;
break;
}
var num4 = (int)Asn1RunTime.DecodeIntValue(buffer, num3, true);
length -= num3;
var num5 = Asn1RunTime.DecodeIntValue(buffer, length, false) * (1L << ((num2 & RealFactorMask) >> 2));
switch ((num2 & RealBaseMask))
{
case RealBase2:
num6 = 2;
break;
case RealBase8:
num6 = 8;
break;
case RealBase16:
num6 = 16;
break;
default:
throw new Exception("Asn1InvalidFormatOfConstructedValue");
}
Value = num5 * Math.Pow(num6, num4);
if ((num2 & PlusInfinity) != 0)
{
Value = -Value;
}
}
buffer.TypeCode = RealTypeCode;
}
}
