361   for (int i = Arcs.Size() - 1;  i >= 0; i--)  in Close()
363     RINOK(Arcs[i].Archive->Close());  in Close()
371   while (!Arcs.IsEmpty())  in Release()
372     Arcs.DeleteBack();  in Release()
395       if (Arcs.Size() >= formatIndices.Size())  in Open()
397       formatIndex = formatIndices[formatIndices.Size() - Arcs.Size() - 1];  in Open()
399     else if (Arcs.Size() >= 32)  in Open()
402     if (Arcs.IsEmpty())  in Open()
408       Arcs.Add(arc);  in Open()
412     const CArc &arc = Arcs.Back();  in Open()
458     Arcs.Add(arc2);  in Open()
460   IsOpen = !Arcs.IsEmpty();  in Open()
520   if (Arcs.Size() > 1)  in ReOpen()
523   if (Arcs.Size() == 0)  in ReOpen()