Symbian3/SDK/Source/GUID-FF0330E8-81CA-52F3-AD60-89360B74B25D.dita
changeset 0 89d6a7a84779
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-FF0330E8-81CA-52F3-AD60-89360B74B25D.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,38 @@
+<?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 concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-FF0330E8-81CA-52F3-AD60-89360B74B25D" xml:lang="en"><title>Using
+CArrayVar&lt;TAny&gt;</title><shortdesc>The <codeph>CArrayVar&lt;TAny&gt;</codeph> class is useful for constructing
+an array of variable length buffers, where the length is decided at run time.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<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
+is useful for constructing an array of variable length buffers, where the
+length is decided at run time. It is also useful as a data member of a base
+class in a thin template class/base class pair,where the type of the array
+element is not known until the owning thin template class is instantiated.</p> <p>For
+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
+ {
+public :
+ ...
+protected :
+ ...
+ void  PushL(const TAny* aPtr);
+ TAny* Pop();
+private :
+ CArrayVar&lt;TAny&gt; iArray;
+ }</codeblock> <codeblock id="GUID-3EEED66E-A71A-597D-82B5-E2EAD5AC93CC" xml:space="preserve">template &lt;class T&gt;
+class CExample : public CExampleBase
+ {
+public :
+ ...
+ inline void PushL(const T* aPtr);
+ inline T*   Pop();
+ }</codeblock> </section>
+</conbody></concept>
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