/** * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ package datastructures.linkedlists; /** * Sentinel singly linked list class. A linked * list is a list constructed from nodes, which * hold stored values, with references to each * other, this is usally an ineffective data * structure, especially on high-level object * orientated languages. A singly linked list * only stores nodes with references to the * following node. A sentinel linked list increses * performance and reduces complexity by tracking * the edges implicitly rather than explicitly; * instead of having reference to the first and * last node, a sentinel linked list have an extra * node, {@link #edge}, is placed at both the end * and the beginning of the linked list — the * list acts as linear but is constructed as * circular — and rather than checking that the * next node is not {@code null} you check that it * is not {@link #edge}. This implemention only * implements methods that do not require iterating * over all nodes for find a specific; all other * methods' — those that are implemented — time * complexity is Θ(1). * * @param The value stored in the structure */ £>export name=SentinelSinglyLinkedList with_sentinel=1 with_head=0 with_tail=0 with_prev=0 £>$GPP -s £ < src/datastructures/linkedlists/template | sed -e '/^[/ ]\*/d' -e '/^$/d'