diff -r 000000000000 -r 89d6a7a84779 Symbian3/SDK/Source/GUID-EA71F52C-DB4C-500D-9051-31BEF29E171D.dita
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-EA71F52C-DB4C-500D-9051-31BEF29E171D.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,28 @@
+<?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-EA71F52C-DB4C-500D-9051-31BEF29E171D" xml:lang="en"><title>Basic
+exception support</title><shortdesc>Describes the operating support for exceptions.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>The basic operating system support for exceptions comes from</p>
+<ul>
+<li id="GUID-E168AD4F-366A-5EAF-98F2-0C1B187E1AE0"><p>the <codeph>TRAP</codeph> macro
+and its variant, <codeph>TRAPD</codeph>, which allow code to be run under
+a <keyword>trap harness</keyword> </p> </li>
+<li id="GUID-3B4C9F10-A89C-5979-ABC7-5106C7B9AFED"><p>the <codeph>User::Leave()</codeph> call,
+which terminates the current function, and returns to the trap harness, specifying
+an error code.</p> </li>
+</ul>
+<p>These are analogous to C++’s exception handling support (<codeph>try/catch</codeph> and <codeph>throw</codeph>). </p>
+<p>By convention, all functions that can leave — directly or indirectly —
+have an L appended onto their name (and can therefore be referred to as <keyword>L
+functions</keyword>). The function invoked by a trap harness will always be
+an L function. </p>
+</conbody></concept>
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