public static InternalSearchData CreateSearchData(byte[] values)
{
InternalSearchData sd = new InternalSearchData();
sd.checkB0 = new bool[256];
for (int i = 0; i < values.Length; ++i)
{
sd.checkB0[values[i]] = true;
}
return(sd);
}
public unsafe bool TryFindAnyForward(long pos, InternalSearchData sd, out long foundAt)
{
foundAt = -1;
long curIdx = pos - begin;
long length = end - begin;
if (curIdx < 0 || curIdx >= length)
{
return(false);
}
if (begin < 0 || length < 0)
{
return(false);
}
if (sd.checkB0 == null || sd.checkB0.Length != 256)
{
return(false);
}
if (byteBuffer == null || byteBuffer.Length < length)
{
return(false);
fixed(byte *buffer = byteBuffer)
{
fixed(bool *chk = sd.checkB0)
{
byte *bEnd = buffer + length;
byte *bCur = buffer + curIdx;
while (bCur < bEnd)
{
if (*(chk + *(bCur)))
{
foundAt = begin + (bCur - buffer);
return(true);
}
++bCur;
}
}
}
return(false);
}
