ComponentAce.Compression.Libs.zlib.SupportClass.Identity C# (CSharp) Method

        public static double Identity(double literal)
        {
            return literal;
        }

        internal void scan_tree(short[] tree, int max_code)
        {
            int num  = -1;
            int num2 = tree[1];
            int num3 = 0;
            int num4 = 7;
            int num5 = 4;

            if (num2 == 0)
            {
                num4 = 138;
                num5 = 3;
            }
            tree[(max_code + 1) * 2 + 1] = (short)SupportClass.Identity(65535L);
            for (int i = 0; i <= max_code; i++)
            {
                int num6 = num2;
                num2 = tree[(i + 1) * 2 + 1];
                if (++num3 < num4 && num6 == num2)
                {
                    continue;
                }
                if (num3 < num5)
                {
                    bl_tree[num6 * 2] = (short)(bl_tree[num6 * 2] + num3);
                }
                else if (num6 != 0)
                {
                    if (num6 != num)
                    {
                        bl_tree[num6 * 2]++;
                    }
                    bl_tree[32]++;
                }
                else if (num3 <= 10)
                {
                    bl_tree[34]++;
                }
                else
                {
                    bl_tree[36]++;
                }
                num3 = 0;
                num  = num6;
                if (num2 == 0)
                {
                    num4 = 138;
                    num5 = 3;
                }
                else if (num6 == num2)
                {
                    num4 = 6;
                    num5 = 3;
                }
                else
                {
                    num4 = 7;
                    num5 = 4;
                }
            }
        }