public bool MoveNext()
{
if (Orderer.IsDefaultValue())
{
Orderer = new Orderer <TItem, TKey, TInnerEnumerator, TComparer>(ref Inner, ref Comparer);
}
if (ToYield >= Orderer.Length)
{
return(false);
}
while (Orderer.SortedUpTo < ToYield)
{
Orderer.Advance(ref Comparer);
}
var toYield = ToYield;
Current = Orderer.ElementAt(toYield);
ToYield++;
return(true);
}