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1 <?xml version="1.0" encoding="utf-8"?> |
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2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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3 <!-- This component and the accompanying materials are made available under the terms of the License |
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4 "Eclipse Public License v1.0" which accompanies this distribution, |
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5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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6 <!-- Initial Contributors: |
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7 Nokia Corporation - initial contribution. |
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8 Contributors: |
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9 --> |
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10 <!DOCTYPE concept |
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11 PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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12 <concept id="GUID-B7482AEB-9E7E-5F9C-A69D-60E1FE82CCE1" xml:lang="en"><title>dynamicarray: |
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13 Using Dynamic Arrays</title><shortdesc>This example application demonstrates how to construct and use |
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14 dynamic arrays.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody> |
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15 <p> The example includes both simple dynamic arrays and extended dynamic arrays. |
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16 You are likely to use simple dynamic arrays often. Extended dynamic arrays |
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17 are combinations of element properties and storage types. </p> |
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18 <p>The example implements the following operations for the <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita"><apiname>RArray</apiname></xref> and <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita"><apiname>RPointerArray</apiname></xref> classes: </p> |
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19 <ul> |
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20 <li id="GUID-B97ECA5C-C85B-5FFE-85C8-5CF63B1E28BE"><p>Appends elements </p> </li> |
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21 <li id="GUID-94B944CD-E9E2-5C4D-AACB-9E132A042D9E"><p>Inserts elements </p> </li> |
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22 <li id="GUID-C08769D8-4921-53BE-A07C-08ADE237D05F"><p>Accesses elements </p> </li> |
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23 <li id="GUID-CB9EE059-E64B-5178-962F-1B21569581DF"><p>Removes elements </p> </li> |
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24 <li id="GUID-FFD58188-D8E0-5B53-8E59-91911186C7CB"><p>Finds elements (in various |
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25 ways) </p> </li> |
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26 <li id="GUID-6ADD8D2B-9B4E-52C5-838E-DA0F3D646390"><p>Sorts array </p> </li> |
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27 <li id="GUID-BF05324F-470C-5DE6-8BAD-E842D7C2BBC8"><p>Destroys the array </p> </li> |
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28 </ul> |
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29 <section id="GUID-C469AD45-C916-48B9-A621-944D8FE0B625"><title>Download</title> <p>Click |
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30 on the following link to download the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-a0e27f39-b574-424f-af5c-8e764d4e3aa0.zip" scope="external">DynamicArrays.zip</xref></p><p>Download some additional files |
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31 required by the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-4184e6d4-8dbe-4267-b1a3-8737c8bf64ce.zip" scope="external">CommonFramework.zip</xref></p><p>View the source code: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-a0e27f39-b574-424f-af5c-8e764d4e3aa0.html" scope="peer">browse </xref> . View the additional files:<xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-4184e6d4-8dbe-4267-b1a3-8737c8bf64ce.html" scope="peer">browse</xref>.</p> </section> |
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32 <section id="GUID-B7551573-B14D-45A9-9F29-39033C2058EC"><title>Description</title> <p>This |
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33 example demonstrates how to construct and use the following types of dynamic |
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34 arrays: </p> <p><b>CArrayFixFlat</b> </p> <p>This example uses the <xref href="GUID-12C65B99-553E-35CA-B36F-2F77BFC972B3.dita"><apiname>CArrayFixFlat</apiname></xref> array |
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35 class to create an array of objects. These objects are of fixed length and |
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36 are stored in a flat buffer. </p> <p>The following operations are performed |
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37 on this array: </p> <ul> |
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38 <li id="GUID-98A1051E-C6A9-5A4D-9AC0-6421E7D2B972"><p> <b>Append elements:</b> The |
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39 example uses the <xref href="GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585.dita#GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585/GUID-B4C14DDC-78BF-3A11-9A7C-6B7F948CE162"><apiname>CArrayFix::AppendL()</apiname></xref> function to append |
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40 objects to the array. </p> </li> |
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41 <li id="GUID-EC85E528-D19E-5E93-B3D7-09A5E4920335"><p> <b>Insert elements:</b> The |
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42 example uses the <xref href="GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585.dita#GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585/GUID-C6A1753D-E8A6-39CA-ACCA-42192A7B1BA3"><apiname>CArrayFix::InsertL()</apiname></xref> function to insert |
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43 objects into the array at the specified position. </p> </li> |
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44 <li id="GUID-2572C5EC-A0AF-59AE-A165-A47741C035B1"><p> <b>Remove elements:</b> The |
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45 example uses the <xref href="GUID-B0159EFA-B76E-3C59-8B35-42CC93DAF0FF.dita#GUID-B0159EFA-B76E-3C59-8B35-42CC93DAF0FF/GUID-3B6B91EE-B89F-3BA9-8F07-5036A347A6DE"><apiname>CArrayFixBase::Delete()</apiname></xref> function to delete |
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46 objects from the array. </p> </li> |
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47 <li id="GUID-437DB73D-A4CB-573C-B75F-1E56A667F196"><p> <b>Sort elements:</b> The |
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48 example defines an array key to sort the array using the <xref href="GUID-5BC09594-7D9F-3B3F-95B0-7828A756537B.dita"><apiname>TKeyArrayFix</apiname></xref> class. |
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49 The <xref href="GUID-B0159EFA-B76E-3C59-8B35-42CC93DAF0FF.dita#GUID-B0159EFA-B76E-3C59-8B35-42CC93DAF0FF/GUID-B62662E3-F359-3A16-8C61-38A9E2EC7A56"><apiname>CArrayFixBase::Sort()</apiname></xref> function is used to sort the |
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50 array using this array key. </p> </li> |
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51 <li id="GUID-3EF730BC-B9DC-5906-ACE5-EC57DB8FDF46"><p> <b>Swap two elements:</b> The |
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52 example implements the <xref href="GUID-04117018-A42A-3D49-9EA3-D1D7A7785B0A.dita#GUID-04117018-A42A-3D49-9EA3-D1D7A7785B0A/GUID-22AB214D-552D-3F5B-9A04-E620453FFD08"><apiname>TSwap::Swap()</apiname></xref> function through the <codeph>CMySwap</codeph> class. |
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53 The <codeph>CMySwap::Swap()</codeph> function is used to swap two elements |
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54 of the array. </p> </li> |
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55 <li id="GUID-58714E19-49E6-528B-A462-F88BCB0063A3"><p> <b>Find an element:</b> The |
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56 example implements the <codeph>TKeyElementFix</codeph> class. This class is |
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57 a <xref href="GUID-0756A649-486C-3CE5-9F1E-467E008A63C7.dita"><apiname>TKey</apiname></xref> derived class. It overrides the <xref href="GUID-0756A649-486C-3CE5-9F1E-467E008A63C7.dita#GUID-0756A649-486C-3CE5-9F1E-467E008A63C7/GUID-EE6812EB-9E48-303D-88B7-B0D49581E9B1"><apiname>TKey::At()</apiname></xref> function. |
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58 The <codeph>TKeyElementFix::At()</codeph> function gets a pointer to the key |
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59 of a specified array element. This function is used by the <xref href="GUID-12C65B99-553E-35CA-B36F-2F77BFC972B3.dita#GUID-12C65B99-553E-35CA-B36F-2F77BFC972B3/GUID-D5FB0842-E883-3977-95EB-EA2D0189A429"><apiname>CArrayFixFlat::Find()</apiname></xref> function |
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60 to find an element in the array. </p> </li> |
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61 </ul> <p><b>CArrayPtrFlat</b> </p> <p>This example uses the <xref href="GUID-FCE7D958-96AA-346D-8D22-0EF24B9DB7CC.dita"><apiname>CArrayPtrFlat</apiname></xref> array |
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62 class to create an array of pointers to <codeph>CBase</codeph> derived objects. </p> <p>The |
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63 following operations are performed on this array: </p> <ul> |
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64 <li id="GUID-291A9D24-E360-59A5-9856-D727920E06A3"><p> <b>Append elements:</b> The |
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65 example uses the <xref href="GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585.dita#GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585/GUID-B4C14DDC-78BF-3A11-9A7C-6B7F948CE162"><apiname>CArrayFix::AppendL()</apiname></xref> function to append |
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66 objects to the array. </p> </li> |
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67 <li id="GUID-17E609B9-837D-528B-A4EC-983AFCCC9D55"><p> <b>Insert elements:</b> The |
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68 example uses the <xref href="GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585.dita#GUID-79EFD210-2C4F-31E5-83CD-DC9FE54FD585/GUID-C6A1753D-E8A6-39CA-ACCA-42192A7B1BA3"><apiname>CArrayFix::InsertL()</apiname></xref> function to insert |
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69 objects into the array at the specified position. </p> </li> |
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70 <li id="GUID-CC2A6E70-76E1-5029-B409-09EE2ADFCF0D"><p> <b>Remove elements:</b> The |
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71 example uses the <xref href="GUID-B0159EFA-B76E-3C59-8B35-42CC93DAF0FF.dita#GUID-B0159EFA-B76E-3C59-8B35-42CC93DAF0FF/GUID-3B6B91EE-B89F-3BA9-8F07-5036A347A6DE"><apiname>CArrayFixBase::Delete()</apiname></xref> function to delete |
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72 objects from the array. </p> </li> |
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73 </ul> <p><b>CArrayVarFlat</b> </p> <p>This example uses the <xref href="GUID-5BC7EAFE-FC9C-3E86-BFDC-FDE9FE086D53.dita"><apiname>CArrayVarFlat</apiname></xref> array |
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74 class to create an array of objects. These objects are of different lengths. |
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75 Pointers to these elements are maintained in a flat dynamic buffer. </p> <p>The |
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76 following operations are performed on this array: </p> <ul> |
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77 <li id="GUID-D44919CC-40CF-5BE9-8228-633B752E83BE"><p> <b>Append elements:</b> The |
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78 example uses the <xref href="GUID-C2430ABF-D276-3F70-A18B-7059F3099BF1.dita#GUID-C2430ABF-D276-3F70-A18B-7059F3099BF1/GUID-8C5D0DD4-880F-357C-92F5-C4750EF3F0CA"><apiname>CArrayVar::AppendL()</apiname></xref> function to append |
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79 objects to the array. </p> </li> |
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80 <li id="GUID-DE339118-3311-5603-8925-9C540E2E3B5F"><p> <b>Sort elements:</b> The |
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81 example defines an array key to sort the array using the <xref href="GUID-03CE0E0B-3731-338A-87E4-49B669AD4EBC.dita"><apiname>TKeyArrayVar</apiname></xref> class. |
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82 The <xref href="GUID-1BA1D5FF-BE4A-3EA5-9784-ADEA1B81EF39.dita#GUID-1BA1D5FF-BE4A-3EA5-9784-ADEA1B81EF39/GUID-9E6E6A98-12F0-3D18-A9A2-5AECEE597FCD"><apiname>CArrayVarBase::Sort()</apiname></xref> function is used to sort the |
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83 array using this array key. </p> </li> |
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84 </ul> <p><b>CArrayPakFlat</b> </p> <p>This example uses the <xref href="GUID-4D6E6B46-32B5-34AD-BD8A-84BF6B2B7C81.dita"><apiname>CArrayPakFlat</apiname></xref> array |
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85 class to create an array of objects. These objects are of variable lengths. |
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86 These are stored in a flat buffer. Each element is preceded by its length |
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87 information. </p> <p>The following operations are performed on this array: </p> <ul> |
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88 <li id="GUID-DC8D9F36-DD53-52CB-B28B-585EF92A4F6E"><p> <b>Append elements:</b> The |
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89 example uses the <xref href="GUID-899495E6-C20E-3614-A3A9-C49A7916E5E7.dita#GUID-899495E6-C20E-3614-A3A9-C49A7916E5E7/GUID-2AA0BFE1-E86D-3E4C-99C0-116A4D23458E"><apiname>CArrayPak::AppendL()</apiname></xref> function to append |
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90 objects to the array. </p> </li> |
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91 <li id="GUID-CC45322E-DD5A-5A59-99C5-E5EC5F50102F"><p> <b>Find an element:</b> The |
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92 example defines an array key to find an element in the array using the <xref href="GUID-F3BF9485-BA32-36A4-9B39-FC51E28F5A24.dita"><apiname>TKeyArrayPak</apiname></xref> class. |
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93 The <xref href="GUID-800D79F0-D735-3AC5-BDFD-F1E7B8C37B99.dita#GUID-800D79F0-D735-3AC5-BDFD-F1E7B8C37B99/GUID-A52664B1-8E1F-3570-92EC-E7EEEA26F204"><apiname>CArrayPakBase::Find()</apiname></xref> function is used to find an element |
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94 in the array. </p> </li> |
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95 </ul> <p><b>RArray</b> </p> <p>This example constructs a simple dynamic array |
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96 called <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita"><apiname>RArray</apiname></xref>. It is an efficient array of fixed length |
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97 objects. The elements of this array are the instances of another class, so |
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98 this is specified as a template parameter <codeph>T</codeph>. </p> <p>This |
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99 example shows the following operations to this array: </p> <ul> |
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100 <li id="GUID-C70C80B2-E102-5B25-AE9C-9A81FF8A98EB"><p> <b>Append elements:</b> The |
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101 example performs the following steps: </p> <ul> |
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102 <li><p>Appends the objects into the array using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-91876009-5DB6-3EC3-A666-C641DFD9F6AC"><apiname>RArray::AppendL()</apiname></xref>.</p></li> |
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103 <li><p>Displays the number of objects and prints each object present in the |
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104 array.</p></li> |
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105 </ul> </li> |
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106 <li id="GUID-6DE66AF3-ECD0-599C-9BE0-CE56FAAE8DEB"><p> <b>Insert elements:</b> The |
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107 example performs the following steps: </p> <ul> |
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108 <li><p>Inserts the objects at a specified position using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-16727B8A-AFFB-3980-AD43-5F48FDE6636F"><apiname>RArray::InsertL()</apiname></xref>.</p></li> |
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109 <li><p>Passes the position of the object to the second parameter of <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-16727B8A-AFFB-3980-AD43-5F48FDE6636F"><apiname>RArray::InsertL()</apiname></xref>. </p></li> |
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110 <li><p>Inserts objects in the beginning, middle, and at the end of the array. </p></li> |
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111 <li><p>Displays the number of objects and prints each object present in the |
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112 array. </p></li> |
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113 </ul> </li> |
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114 <li id="GUID-4D341B6F-68F2-5111-9016-DF394371E9D9"><p> <b>Access elements:</b> The |
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115 example accesses each object in the array and display into the console. </p> </li> |
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116 <li id="GUID-1BC1A5E9-2C9D-56C3-BD68-ABF6887A6611"><p> <b>Remove elements:</b> The |
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117 example removes an object at a specific position from the array using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-1DB4CB58-EFC8-3A83-9F37-19269C6C2C3B"><apiname>RArray::Remove()</apiname></xref>. </p> </li> |
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118 <li id="GUID-9A8AE90E-5FBC-546E-8486-B49E9C102ADE"><p> <b>Find elements:</b> The |
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119 example performs the following steps: </p> <ul> |
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120 <li><p>Finds the first object in the array that matches the specified object |
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121 using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-3E855FCF-DF2C-3466-86F8-DD1EB6E29276"><apiname>RArray::Find()</apiname></xref>.</p></li> |
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122 <li><p>Finds the last object in the array that matches the specified object |
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123 using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-C6D7018E-764D-3F22-B2AC-9DD440803E29"><apiname>RArray::FindReverse()</apiname></xref>. </p></li> |
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124 <li><p>Finds the object using a binary search technique in the array, which |
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125 matches the specified object using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-DCB1F823-9EF6-34DB-8355-2BC2EF26FE7C"><apiname>RArray::FindInSignedKeyOrder()</apiname></xref>. |
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126 It assumes that the existing objects within the array are in signed key order.</p></li> |
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127 <li><p>Finds the object using a binary search technique in the array, which |
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128 matches the specified object using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-0E388DD6-B45D-3446-8962-A0EDBD342638"><apiname>RArray::FindInUnsignedKeyOrder()</apiname></xref>. |
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129 It assumes that the existing objects within the array are in unsigned key |
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130 order. </p></li> |
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131 <li><p>Finds the object using a binary search technique in the array, which |
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132 matches the specified object using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-A18066A7-E8D1-3639-A1A3-28FC305530AC"><apiname>RArray::SpecificFindInSignedKeyOrder()</apiname></xref>. |
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133 It passes the mode as the second parameter of this API to find the first, |
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134 last, or any match in case of multiple matches. It assumes that the existing |
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135 objects within the array are in signed key order.</p></li> |
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136 <li><p>Finds the object using a binary search technique in the array, which |
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137 matches the specified object using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-A2A443D0-0BC5-3918-8F4D-02EE8631DFA5"><apiname>RArray::SpecificFindInUnsignedKeyOrder()</apiname></xref>. |
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138 It passes the mode as the second parameter of this API to find the first, |
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139 last, or any match in case of multiple matches. It assumes that the existing |
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140 objects within the array are in unsigned key order.</p></li> |
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141 </ul> </li> |
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142 <li id="GUID-BCE082EF-B079-5CCD-A05D-E75673D41F6A"><p> <b>Sort elements:</b> The |
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143 example performs the following steps: </p> <ul> |
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144 <li><p>Constructs two arrays of 64-bit signed integer type objects. </p></li> |
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145 <li><p>Appends random objects to the first array using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-B765D192-0DFD-3C6C-9CC2-DF9127CCBCD1"><apiname>RArray::Append()</apiname></xref>. </p></li> |
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146 <li><p>Inserts the data present in the first array to the second array.</p></li> |
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147 <li><p>Sorts the element of second array using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-1341082A-2B94-39A8-9392-C7579703448B"><apiname>RArray::sort()</apiname></xref>.</p></li> |
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148 </ul> </li> |
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149 <li id="GUID-0C4013C6-FF11-5EF5-997D-FC700B0EA074"><p> <b>Destroy the array:</b> The |
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150 example performs the following steps: </p> <ul> |
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151 <li><p>Destroys the array using delete operator. </p></li> |
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152 <li><p>Closes the array and removes all the memory allocated to the array |
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153 using <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita#GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707/GUID-03B4185C-48D1-3006-850C-3FEC64624652"><apiname>RArray::Close()</apiname></xref>.</p></li> |
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154 </ul> </li> |
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155 </ul> <p><b>RPointerArray</b> </p> <p>This example constructs a simple dynamic |
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156 array of pointers to objects called <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita"><apiname>RPointerArray</apiname></xref>. It is |
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157 an efficient pointer array of fixed-length objects. The elements of this array |
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158 are the instances of another class so this is specified as a template parameter <codeph>T</codeph>. </p> <p>This |
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159 example shows the following operations to this array: </p> <ul> |
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160 <li id="GUID-407A782D-D24C-57F1-9186-EA282BAED7DE"><p> <b>Append elements:</b> The |
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161 example performs the following steps: <ul> |
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162 <li><p>Appends the object pointers into the array using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-E68CDC4B-4F61-38CA-8B15-18316FB3E474"><apiname>RPointerArray::AppendL()</apiname></xref>.</p></li> |
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163 <li><p>Displays the number of object pointers and prints each object pointer |
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164 present in the array. </p></li> |
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165 </ul> </p></li> |
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166 <li id="GUID-F912B096-C0D2-54AB-83BC-5EF5AE27056D"><p> <b>Insert elements:</b> The |
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167 example performs the following steps: </p> <ul> |
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168 <li><p>Inserts the objects pointer at a specified position using <xref href="GUID-DB067403-726B-3DCF-B1D9-F51CB2003608.dita#GUID-DB067403-726B-3DCF-B1D9-F51CB2003608/GUID-F93DF5F8-3FEF-3688-8734-CBB14E6359ED"><apiname>RpointerArray::InsertL()</apiname></xref>. </p></li> |
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169 <li><p>Passes the position of the object pointer to the second parameter of <xref href="GUID-DB067403-726B-3DCF-B1D9-F51CB2003608.dita#GUID-DB067403-726B-3DCF-B1D9-F51CB2003608/GUID-F93DF5F8-3FEF-3688-8734-CBB14E6359ED"><apiname>RpointerArray::InsertL()</apiname></xref>. </p></li> |
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170 <li><p>Inserts object pointer at the beginning, in the middle, and at the |
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171 end of the array. </p></li> |
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172 <li><p>Displays the number of object pointers and prints each object pointer |
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173 present in the array. </p></li> |
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174 </ul> </li> |
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175 <li id="GUID-EA24F055-BEE4-59D3-AE73-0050D234B210"><p> <b>Access elements:</b> The |
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176 example accesses each object pointer in the array and displays it to the console. </p> </li> |
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177 <li id="GUID-07DEA041-3DA6-50F0-A741-B35BCE2A8F5E"><p> <b>Remove elements:</b> The |
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178 example removes an object pointer at a specific position from the array using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-EC933901-F350-3A6E-8685-A67CA37A1E11"><apiname>RPointerArray::Remove()</apiname></xref>. </p> </li> |
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179 <li id="GUID-FA180B99-1F67-59ED-A3D0-72301D9C8715"><p> <b>Find elements:</b> The |
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180 example performs the following steps: </p> <ul> |
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181 <li><p>Finds the first object pointer in the array that matches the specified |
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182 object using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-8A9FDFE2-36DF-3761-9954-F109772AF61A"><apiname>RPointerArray::Find()</apiname></xref>. </p></li> |
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183 <li><p>Finds the last object pointer in the array that matches the specified |
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184 object using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-C5A21601-1A65-3511-ABD6-A8FFD980557A"><apiname>RPointerArray::FindReverse()</apiname></xref>. </p></li> |
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185 <li><p>Finds the object pointer in the array that matches the specified object |
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186 pointer, using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-A481AF4B-3E62-3C1F-B5D7-8AF728FDF669"><apiname>RPointerArray::FindInAddressOrder()</apiname></xref>. It |
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187 assumes that object pointers in the array are in address order. </p></li> |
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188 </ul> </li> |
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189 <li id="GUID-04A741B2-2B7B-582C-A3EB-9826D55A2E09"><p> <b>Sort elements:</b> The |
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190 example performs the following steps: </p><ul> |
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191 <li><p>Constructs two arrays of <codeph>TAny</codeph> pointer objects. </p></li> |
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192 <li><p>Appends random objects to the first pointer array using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-C58AEACF-A227-365B-BFA8-90EFA488ED41"><apiname>RPointerArray::Append()</apiname></xref>. </p></li> |
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193 <li><p>Inserts the data present in the first pointer array to the second pointer |
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194 array. </p></li> |
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195 <li><p>Sorts the element of the second pointer array using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-46A0EC17-43BA-33B8-B24C-7D30F5726668"><apiname>RPointerArray::sort()</apiname></xref>. </p></li> |
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196 </ul> </li> |
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197 <li id="GUID-2B2521B2-815E-5798-8258-76B812BA42B5"><p> <b>Destroy the array:</b> The |
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198 example performs the following steps: </p> <ul> |
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199 <li><p>Destroys and resets the pointer array using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-5F92DA38-9A3C-3D78-9E8B-F0341025F73C"><apiname>RPointerArray::ResetAnddestroy()</apiname></xref>. </p></li> |
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200 <li><p>Closes the pointer array and removes all the memory allocated to the |
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201 array using <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita#GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F/GUID-B96DA352-0983-31F3-BF46-EE30122F27B5"><apiname>RPointerArray::Close()</apiname></xref>. </p></li> |
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202 </ul> </li> |
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203 </ul> </section> |
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204 <section id="GUID-232031B9-5964-45FC-A497-1FBC6FB068B1"><title>Class summary</title><p> <xref href="GUID-12C65B99-553E-35CA-B36F-2F77BFC972B3.dita"><apiname>CArrayFixFlat </apiname></xref> <xref href="GUID-FCE7D958-96AA-346D-8D22-0EF24B9DB7CC.dita"><apiname>CArrayPtrFlat </apiname></xref> <xref href="GUID-5BC7EAFE-FC9C-3E86-BFDC-FDE9FE086D53.dita"><apiname>CArrayVarFlat </apiname></xref> <xref href="GUID-4D6E6B46-32B5-34AD-BD8A-84BF6B2B7C81.dita"><apiname>CArrayPakFlat </apiname></xref> <xref href="GUID-04117018-A42A-3D49-9EA3-D1D7A7785B0A.dita"><apiname>TSwap </apiname></xref> <xref href="GUID-5BC09594-7D9F-3B3F-95B0-7828A756537B.dita"><apiname>TKeyArrayFix </apiname></xref> <xref href="GUID-03CE0E0B-3731-338A-87E4-49B669AD4EBC.dita"><apiname>TKeyArrayVar </apiname></xref> <xref href="GUID-F3BF9485-BA32-36A4-9B39-FC51E28F5A24.dita"><apiname>TKeyArrayPak </apiname></xref> <xref href="GUID-0756A649-486C-3CE5-9F1E-467E008A63C7.dita"><apiname>TKey </apiname></xref> <xref href="GUID-FAEBF321-6B08-3041-A01F-B1E7282D0707.dita"><apiname>RArray </apiname></xref> <xref href="GUID-C028C373-CE25-3832-855E-17FB738721CF.dita"><apiname>TLinearOrder </apiname></xref> <xref href="GUID-AAA13D1F-1BD7-3331-BB8C-11FA2795B53F.dita"><apiname>RPointerArray</apiname></xref> </p></section> |
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205 <section id="GUID-7F5416FD-580C-4CD5-8167-DB6C546B75A4"><title>Build</title> <p> <xref href="GUID-3100800B-B2F7-50EF-BD4C-3C345ECCB2A5.dita">The Symbian build process</xref> describes |
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206 how to build this example. </p> <p>For the emulator, the example builds an |
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207 executable file called <filepath>DynamicArrays.exe</filepath> in the standard |
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208 location (<filepath>\epoc32\release\winscw\<build_variant></filepath> for |
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209 CodeWarrior) directory. After launching the executable file, depending on |
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210 the emulator you are using, you can task away from the application launcher |
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211 or shell screen to view the console. </p> </section> |
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212 </conbody></concept> |