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annotate dynamin/core/array.d @ 102:604d20cac836

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Add dynamin.core.array and put contains() there.
author Jordan Miner <jminer7@gmail.com>
date Tue, 15 May 2012 21:14:48 -0500
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children 73060bc3f004
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1 // Written in the D programming language
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2 // www.digitalmars.com/d/
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3
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4 /*
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5 * The contents of this file are subject to the Mozilla Public License Version
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6 * 1.1 (the "License"); you may not use this file except in compliance with
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7 * the License. You may obtain a copy of the License at
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8 * http://www.mozilla.org/MPL/
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9 *
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10 * Software distributed under the License is distributed on an "AS IS" basis,
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11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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12 * for the specific language governing rights and limitations under the
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13 * License.
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14 *
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15 * The Original Code is the Dynamin library.
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16 *
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17 * The Initial Developer of the Original Code is Jordan Miner.
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18 * Portions created by the Initial Developer are Copyright (C) 2006-2012
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19 * the Initial Developer. All Rights Reserved.
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20 *
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21 * Contributor(s):
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22 * Jordan Miner <jminer7@gmail.com>
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23 *
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24 */
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25
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26 module dynamin.core.array;
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27
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28 /**
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29 * Tests whether or not the specified item is in the specified array.
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30 * Returns: true if the specified item is in the array and false otherwise
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31 * Examples:
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32 * -----
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33 * "Hello".contains('e') == true
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34 * "Hello".contains('a') == false
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35 * "".contains('e') == false
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36 * assert([2, 3, 7].contains(3) == true);
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37 * assert([2, 3, 7].contains(0) == false);
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38 * -----
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39 */
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40 bool contains(T, U)(T[] arr, U item) {
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41 foreach(U item2; arr) {
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42 if(item == item2)
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43 return true;
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44 }
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45 return false;
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46 }
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47
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48 unittest {
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49 assert("Hello".contains('e') == true);
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50 assert("Hello".contains('a') == false);
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51 assert("".contains('e') == false);
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52 assert([2, 3, 7].contains(3) == true);
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53 assert([2, 3, 7].contains(0) == false);
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54 }
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