<?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-FF0330E8-81CA-52F3-AD60-89360B74B25D" xml:lang="en"><title>Using+
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CArrayVar&lt;TAny&gt;</title><shortdesc>The <codeph>CArrayVar&lt;TAny&gt;</codeph> class is useful for constructing+
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an array of variable length buffers, where the length is decided at run time.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>+
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<section id="GUID-763A4737-913B-417F-A9A6-CB1844EC64F6"><title>Arrays whose type is not known until class instantiation</title> <p>The <codeph>CArrayVar&lt;TAny&gt;</codeph> class+
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is useful for constructing an array of variable length buffers, where the+
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length is decided at run time. It is also useful as a data member of a base+
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class in a thin template class/base class pair,where the type of the array+
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element is not known until the owning thin template class is instantiated.</p> <p>For+
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example, to implement a stack of variable length objects of type <codeph>T</codeph>.</p> <codeblock id="GUID-4478A571-F004-5015-9D35-DBEABFDBCFF1" xml:space="preserve">class CExampleBase : public CBase+
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 {+
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public :+
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 ...+
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protected :+
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 ...+
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 void  PushL(const TAny* aPtr);+
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 TAny* Pop();+
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private :+
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 CArrayVar&lt;TAny&gt; iArray;+
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 }</codeblock> <codeblock id="GUID-3EEED66E-A71A-597D-82B5-E2EAD5AC93CC" xml:space="preserve">template &lt;class T&gt;+
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class CExample : public CExampleBase+
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 {+
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public :+
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 ...+
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 inline void PushL(const T* aPtr);+
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 inline T*   Pop();+
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 }</codeblock> </section>+
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</conbody></concept>+
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