public static int EncodedLength(long input)
{
if (input == 0)
{
return(Zero.Length);
}
int length = (int)TritsHelper.RoundThird((long)PascalMinTrits((ulong)Math.Abs(input)));
return(length + (int)PascalMinTrits((ulong)Math.Pow(2, (uint)(length / Constants.TritsPerTryte)) - 1));
}
private bool SearchCpu(sbyte[] state, int offset, int length, int security)
{
int count = Math.Min(length, CurlHashLength) - offset;
// Ignore group incr
int index = -1;
while (index < 0)
{
int increaseLength = Increase(_stateLow, _stateHigh, offset + count * 2 / 3, count - count * 2 / 3);
count =
(int)Math.Min(TritsHelper.RoundThird(offset + count * 2 / 3 + increaseLength), CurlHashLength) -
offset;
// clone
ulong[] stateLow = new ulong[CurlStateLength];
ulong[] stateHigh = new ulong[CurlStateLength];
Array.Copy(_stateLow, stateLow, CurlStateLength);
Array.Copy(_stateHigh, stateHigh, CurlStateLength);
// transform
Transform(stateLow, stateHigh);
// check
index = Check(security, stateLow, stateHigh);
}
// output
for (int i = 0; i < count; i++)
{
ulong low = (_stateLow[i] >> index) & 1;
ulong high = (_stateHigh[i] >> index) & 1;
if (low == 1 && high == 0)
{
state[i] = -1;
}
else if (low == 0 && high == 1)
{
state[i] = 1;
}
else if (low == 1 && high == 1)
{
state[i] = 0;
}
else
{
state[i] = 0;
}
}
return(false);
}
public static void Encode(long input, sbyte[] trits)
{
if (input == 0)
{
Array.Copy(Zero, trits, Zero.Length);
}
else
{
int length = (int)TritsHelper.RoundThird((long)PascalMinTrits((ulong)Math.Abs(input)));
long encoding = 0;
TritsHelper.Long2Trits(input, trits);
int index = 0;
int end = length - Constants.TritsPerTryte;
for (int i = 0; i < end; i += Constants.TritsPerTryte)
{
int n = end - i > Constants.TritsPerTryte ? Constants.TritsPerTryte : end - i;
if (TritsHelper.Trits2Long(trits, i, n) > 0)
{
encoding |= (1L << index);
for (int j = 0; j < n; j++)
{
trits[i + j] = (sbyte)-trits[i + j];
}
}
index += 1;
}
if (TritsHelper.Trits2Long(trits, length - Constants.TritsPerTryte, Constants.TritsPerTryte) < 0)
{
encoding |= (1L << index);
for (int j = 0; j < Constants.TritsPerTryte; j++)
{
trits[length - Constants.TritsPerTryte + j] =
(sbyte)-trits[length - Constants.TritsPerTryte + j];
}
}
sbyte[] encodingTrits = new sbyte[trits.Length - length];
TritsHelper.Long2Trits(encoding, encodingTrits);
Array.Copy(encodingTrits, 0, trits, length, encodingTrits.Length);
}
}