--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-1D9376CD-3160-5CD8-A138-B94C5F7A50F8.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,35 @@
+<?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-1D9376CD-3160-5CD8-A138-B94C5F7A50F8" xml:lang="en"><title>Using
+MUTABLE_CAST macro</title><shortdesc>This topic explains how to cast away the constant of the counter
+variable.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>In the example code below, the class has a simple const getter function <codeph>Var()</codeph>.
+It uses <codeph>MUTABLE_CAST</codeph> to cast away the <codeph>const</codeph> -ness
+of the counter variable <codeph>iGetCounter</codeph>, which allows that variable
+to be changed.</p>
+<codeblock id="GUID-8EA00511-AA50-5401-B13D-D21C4611B22F" xml:space="preserve">class TMutableDemo 
+ {
+public:
+ TMutableDemo(TUint a=0):iVar(a),iGetCounter(0) {};
+ TUint Var() const;
+ 
+private:
+ TUint iVar;
+ __MUTABLE TUint iGetCounter;
+ };
+
+TUint TMutableDemo::Var() const 
+ {
+ MUTABLE_CAST(TMutableDemo*,this)-&gt;iGetCounter++;
+ return iVar; 
+ }</codeblock>
+</conbody></concept>
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