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| <?php namespace SEIDS\LinkedLists\Singly; | |
| //============================================================================== | |
| // PHP SEIDS: Supplementary, Easily Interchangeable Data Structures | |
| // | |
| // Copyright 2015, Daniel A.C. Martin | |
| // Distributed under the MIT License. | |
| // (See LICENSE file for details.) | |
| //============================================================================== | |
| class Queue extends LinkedList | |
| { | |
| //////////////////////////////////////////////////////////////////////////// | |
| // Public methods - Implement the same interface as \SplQueue. | |
| //////////////////////////////////////////////////////////////////////////// | |
| public function __construct() // [\SplQueue] | |
| { | |
| $this->flags = 4; // Note: I have no idea why SplQueue does this! | |
| } | |
| public function dequeue() // -> mixed [\SplQueue] | |
| { | |
| return $this->shift(); | |
| } | |
| public function enqueue($value) // [\SplQueue] | |
| { | |
| // SplQueue documentation claims that this function returns void but | |
| // this does not seem to be the case! | |
| return $this->push($value); | |
| } | |
| //public function setIteratorMode($mode) // [\SplQueue] | |
| } | |