/** Copyright 2011 André Sá de Mello * This file is part of Unus. * * Unus is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Unus is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Unus. If not, see . */ /** * A simple queue-like linked list for storing integers. */ public class CIntQueue { private IntNode head; private IntNode current; private IntNode last; CIntQueue() { head = new IntNode(GSudokuBoard.NULL); current = head; last = head; } public void add(int value) { IntNode newNode = new IntNode(value); last.next = newNode; last = last.next; } public int getNext() { current = current.next; if (current == null) current = head; return current.value; } public void resetIterator() { current = head; } }