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+++ b/Symbian3/SDK/Source/GUID-B419D99E-8312-5336-9693-3ED8DFCD0559.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE task
+  PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">
+<task id="GUID-B419D99E-8312-5336-9693-3ED8DFCD0559" xml:lang="en"><title>Automatic
+Resource Management Tutorial</title><abstract><p>The class templates for automatic resource management rely on
+guaranteed execution of their destructor to trigger cleanup. Due to potential
+issues with cleanup order when used in conjunction with the Symbian cleanup
+stack, different variants are required for managing local and member variables
+as described below.  </p></abstract><prolog><metadata><keywords/></metadata></prolog><taskbody>
+<prereq><p>Before beginning you must know the following: </p> <ul>
+<li id="GUID-2B05A77D-54BF-5658-B620-F9F63C121DAA"><p> <b> LcleanedupX Classes:</b> The
+LCleanedupX class provide a means of automatically cleaning up local variables
+on scope exit. </p> </li>
+<li id="GUID-06C21765-F4F9-5884-8C1E-93227E253DDF"><p> <b> LmanagedX Classes:</b> The
+LManagedX classes provide a means of automatically cleaning up member variables
+when the containing object is destroyed </p> </li>
+</ul> </prereq>
+<context><p>The collection of C++ class templates that provide automatic resource
+management provided by EuserHl library is based on the C++ RAII idiom. The
+Symbian C++ class templates for automatic resource management are based on
+the C++ RAII idiom, in order to provide exception-safe automatic cleanup on
+normal or exceptional exit from a scope. </p><p><b>Automatic Resource Management
+Class templates</b></p><p>The Symbian C++ class templates for automatic resource
+management are relatively easier to use. They provide automatic exception-safe
+cleanup upon normal or exceptional exit from a scope. In which case they do
+not require writing any code for invoking the cleanup of resources. The resources
+are automatically cleaned up by the destructors of the template classes in
+that case.  </p><p> The following are the class templates for automatic resource
+management: </p><ul>
+<li><p><b>LcleanedupX Classes </b></p></li>
+<li><p><b>LmanagedX Classes</b> </p></li>
+</ul><note> Due to potential issues with cleanup order when used in conjunction
+with the Symbian cleanup stack, different variants are required for managing
+local and member variables. Click here for more information on
+Automatic Resource Management Class templates. </note></context>
+</taskbody><related-links>
+<link href="GUID-B1D5B680-00E3-5702-985A-94256180E2D8.dita"><linktext>Automatic
+Resource Management</linktext></link>
+<link href="GUID-69D916D3-ED05-58DA-BA42-CE4D7E4F6482.dita"><linktext>Automatic
+ Resource Management Class Templates Tutorial</linktext></link>
+</related-links></task>
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