Symbian3/PDK/Source/GUID-D51600DD-B79A-5A4D-B2D1-36C0A9F9D115.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Fri, 22 Jan 2010 18:26:19 +0000
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child 3 46218c8b8afa
permissions -rw-r--r--
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-D51600DD-B79A-5A4D-B2D1-36C0A9F9D115" xml:lang="en"><title>How
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to use CleanupDeletePushL()</title><shortdesc><codeph>CleanupDeletePushL()</codeph> pushes a <codeph>TCleanupItem</codeph> onto
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the cleanup stack ready for <codeph>CleanupStack::PopAndDestroy()</codeph> to
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delete.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>The <codeph>CleanupDeletePushL()</codeph> templated function constructs
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and pushes a <codeph>TCleanupItem</codeph> onto the cleanup stack. When <codeph>CleanupStack::PopAndDestroy()</codeph> is
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called, the object encapsulated by the <codeph>TCleanupItem</codeph> is deleted.</p>
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<codeblock id="GUID-6AED7BDB-9CB8-588A-A286-AEAEECDB6868" xml:space="preserve">...
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CTestOne* one = new (ELeave) CTestOne;
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CleanupDeletePushL(one);
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one-&gt;SetTextL(KTxtHelloWorld);
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CleanupStack::PopAndDestroy();
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...</codeblock>
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<p>The <codeph>TCleanupItem</codeph> object encapsulates a pointer to the <codeph>CTestOne</codeph> object;
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the cleanup operation is the static function <codeph>Delete()</codeph> of
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the templated class <codeph>CleanupDelete&lt;class T&gt;</codeph>. This is implemented
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by simply deleting <codeph>CTestOne</codeph>.</p>
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</conbody></concept>