public override string /*!*/ ToString()
{
Contract.Ensures(Contract.Result <string>() != null);
if (value == "")
{
byte[] sigBytes = significand.ToByteArray();
StringBuilder binSig = new StringBuilder();
if (exponent == 0)
{
binSig.Append('0');
}
else
{
binSig.Append('1'); //hidden bit
}
for (int i = significandSize - 2; i >= 0; --i) //little endian
{
if (i / 8 < sigBytes.Length)
{
binSig.Append((char)('0' + ((sigBytes[i / 8] >> (i % 8)) & 1)));
}
else
{
binSig.Append('0');
}
}
BIM bias = two_n(exponentSize - 1) - 1;
if (exponent == 0)
{
--bias;
}
int moveDec = ((int)((exponent - bias) % 4) + 4) % 4;
BIM finalExp = (exponent - bias - moveDec) / 4;
string leftBinSig = binSig.ToString().Substring(0, moveDec + 1);
string rightBinSig = binSig.ToString().Substring(moveDec + 1);
leftBinSig = new string('0', 4 - leftBinSig.Length % 4) + leftBinSig;
rightBinSig = rightBinSig + new string('0', 4 - rightBinSig.Length % 4);
StringBuilder leftHexSig = new StringBuilder();
StringBuilder rightHexSig = new StringBuilder();
for (int i = 0; i < leftBinSig.Length / 4; ++i)
{
leftHexSig.AppendFormat("{0:X}", Convert.ToByte(leftBinSig.Substring(i * 4, 4), 2));
}
for (int i = 0; i < rightBinSig.Length / 4; ++i)
{
rightHexSig.AppendFormat("{0:X}", Convert.ToByte(rightBinSig.Substring(i * 4, 4), 2));
}
return(String.Format("{0}0x{1}.{2}e{3}f{4}e{5}", isNeg ? "-" : "", leftHexSig, rightHexSig, finalExp, significandSize, exponentSize));
}
return(String.Format("0{0}{1}e{2}", value, significandSize, exponentSize));
}