/// <summary>TOTO</summary>
public override void ForEachSerial(FastIteratorFunctor <T> functor)
{
BackingStore.ForEach(row => row.ForEach(lh => lh.ForEach(functor)));
}
/// <summary>TOTO</summary>
public override void ForEachSerial(Action <T> action)
{
BackingStore.ForEach(row => row.ForEach(lh => lh.ForEach(action)));
}