public override IEnumerable <T> ReadFrom(long index)
{
long chunkNumber = index / chunkSize;
IEnumerator <T[]> chunks = chunkList.ReadFrom(chunkNumber).GetEnumerator();
T[] arrayChunk = null;
while (index < count)
{
long numberInChunk = index % chunkSize;
if (numberInChunk == 0 || arrayChunk == null)
{
chunks.MoveNext();
arrayChunk = chunks.Current;
}
yield return(arrayChunk[numberInChunk]);
index++;
}
}