AIXI.CTWContextTreeFast.GetFreeIndex C# (CSharp) Method

        public int GetFreeIndex()
        {
            //idea: use chache-oblivious placing (?)

            int index;
            if (this.FreeIndices.Count > 0)
            {
                index = this.FreeIndices.Dequeue();
            }
            else {
                if (this.Nodes.Length <= this.FirstFreeIndex) {
                    this.Resize();
                }
                index = this.FirstFreeIndex;
                this.FirstFreeIndex++;
            }
            return index;
        }