Sequential Container Interface

• Required
• Proper Type
• Empty(), Size()
• Clear()
• Forward Iterators
• Iterator Support: Begin(), End()
• At least one "positional" operation such as:
  1. Front or Back
  2. PushFront or PopFront
  3. PushBack or PopBack
  4. Insert(i,t) or Remove(i)
• Optional
• Front(), PushFront(t), PopFront()
• Back(), PushBack(t), PopBack()
• Insert(I,t), Remove(I)
• Bidirectional or Random Access Iterators
• Iterator Support: rBegin(), rEnd()