<?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-8A58670C-D805-5E97-9B88-70C40CD011D4" xml:lang="en"><title> NULL

constant literals</title><shortdesc>Literal descriptor containing a NULL text string </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>Three variants are provided and can be used directly:</p>

<ul>

<li id="GUID-D0742F7B-BB19-53CF-B5FC-70F34F424C46"><p><codeph>KNullDesC16</codeph> -

the 16 bit variant for Unicode strings</p> </li>

<li id="GUID-B97993A8-7495-54BF-A260-8957E5A3E3C5"><p><codeph>KNullDesC8</codeph> -

the 8 bit variant for non-Unicode strings</p> </li>

<li id="GUID-8BA001E9-6718-5A58-B8A6-2E69348BF1C8"><p><codeph>KNullDesC</codeph> -

the build independent variant</p> </li>

</ul>

<p>These are defined in <filepath>e32std.h</filepath> and are defined as follows:</p>

<ul>

<li id="GUID-BC97F5BB-595A-5BC5-BCA2-7C5FABC055B8"><p><codeph>_LIT(KNullDesC,"");</codeph> </p> </li>

<li id="GUID-A7AC1685-3C5F-579F-B9C6-2F3186A09123"><p><codeph>_LIT8(KNullDesC8,"");</codeph> </p> </li>

<li id="GUID-1F6C6C8A-5354-57FD-BA41-1A3CE1ACC0E0"><p><codeph>_LIT16(KNullDesC16,"");</codeph> </p> </li>

</ul>

</conbody></concept>