static void Check(ulong first, ulong count)
{
using (Stream strm = new MemoryStream((int)(count * 8)))
{
ulong i, j, k;
for (i = 0, k = first; i < count; i++, k++)
{
StreamPacker.PackUInt64(strm, k);
}
strm.Position = 0;
for (i = 0, k = first; i < count; i++, k++)
{
j = StreamPacker.UnpackInt64(strm);
if (j != k)
{
throw new Exception(string.Format("failed on {0}: {1}", k, j));
}
}
}
}