--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-239AA6F5-30CE-5FF0-9C36-93D39FECE1DD.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,26 @@
+<?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-239AA6F5-30CE-5FF0-9C36-93D39FECE1DD" xml:lang="en"><title>How
+to switch heaps</title><shortdesc>After a call to <codeph>User::SwitchHeap()</codeph>, any new request
+for memory is satisfied from the new heap.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>A thread can switch between heaps using <codeph>User::SwitchHeap()</codeph>. </p>
+<p>After a call to this function, any new request for memory is satisfied
+from the new heap.</p>
+<p>When freeing memory, it is <b>extremely important</b> that the current
+heap is the heap from which it was allocated. Trying to free a memory cell
+from a heap when it was allocated from a different heap has undefined consequences.</p>
+<codeblock id="GUID-8265D4CF-CDCE-51EF-AC31-765830961D8E" xml:space="preserve">Thing* mything = new Thing;                // Allocate on current heap
+RHeap* oldHeap = User::SwitchHeap(newHeap);// Change heaps
+...                                        // Use new heap
+User::SwitchHeap(oldHeap);                 // Change to old heap
+delete mything;                            // before deleting.</codeblock>
+</conbody></concept>
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