public Array <T> AddBack(T data)
{
if (_close)
{
return(this);
}
ArrayNode <T> newNode = new ArrayNode <T>();
newNode.data = data;
newNode.previous = this._items.previous;
this._items.previous.next = newNode;
this._items.previous = newNode;
newNode.next = this._items;
_length++;
return(this);
}
public Array <T> InsertBetween(ArrayNode <T> previous, ArrayNode <T> next, ArrayNode <T> newNode)
{
if (_close)
{
return(this);
}
if (previous == this._items && next != this._items)
{
this.AddFront(newNode.data);
}
else if (previous != this._items && next == this._items)
{
this.AddBack(newNode.data);
}
else
{
newNode.next = next;
newNode.previous = previous;
previous.next = newNode;
next.previous = newNode;
}
return(this);
}
public Array <T> Add(T data)
{
ArrayNode <T> newNode = new ArrayNode <T>();
ArrayNode <T> o = this._items.next;
newNode.data = data;
if (o == this._items)
{
this.AddFront(data);
}
else
{
for (; o != this._items;)
{
o = o.next;
}
if (o == this._items)
{
this.AddBack(newNode.data);
}
}
return(this);
}
public ArrayNode()
{
this.next = null;
this.previous = null;
this.data = default;
}
