--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-A60BFFE4-E527-547C-AF4D-30BB7A1C0D07.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,25 @@
+<?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-A60BFFE4-E527-547C-AF4D-30BB7A1C0D07" xml:lang="en"><title>Text
+and binary data</title><shortdesc>Describes how C strings are handled in text and binary data.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>In ‘C’, strings are characterised by the need for a zero terminator to
+flag the end of the string. They suffer from a number of problems. In particular,
+they cannot include binary data within them (in case that data includes binary
+zeroes) and operations on them are, in general, inefficient. ‘C’ strings need
+to be handled in a different way to binary data, as reflected in the <codeph>memxxx()</codeph> and <codeph>strxxx()</codeph> function
+groups in the ANSI ‘C’ library.</p>
+<p>Descriptors allow strings and binary data to be represented in the same
+way; this allows the same functions to be used in both cases.</p>
+<p>For binary data, the 8 bit descriptors should be used explicitly. The distinction
+between Unicode and non-Unicode has no meaning for binary data</p>
+<p>Note that there is no practical use for explicit 16 bit binary data.</p>
+</conbody></concept>
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