57 lines
3.4 KiB
HTML
57 lines
3.4 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Offset values and lengths" />
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<meta name="abstract" content="You can make use of the offset values and lengths returned by the API to step through the list when using an API." />
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<meta name="description" content="You can make use of the offset values and lengths returned by the API to step through the list when using an API." />
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<meta name="DC.Relation" scheme="URI" content="conParameter.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="conOffset" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Offset values and lengths</title>
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</head>
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<body id="conOffset"><a name="conOffset"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Offset values and lengths</h1>
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<div><p>You can make use of the offset values and lengths returned by the
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API to step through the list when using an API.</p>
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<p>When you are using an API that generates a list into a user space, you
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should use the offset values and lengths returned by the API in the generic
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user space header to step through the list instead of specifying what the
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current version of the API returns. This is because:</p>
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<ul><li>The offset values to the different sections of the user space may change
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in future releases.</li>
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<li>The length of the entries in the list data section of the user space may
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change in future releases.</li>
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</ul>
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<p>As long as your HLL application program uses the offset values and lengths
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returned in the generic header of the user space, your program will run in
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future releases of the <span class="keyword">i5/OS™</span> licensed
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program.</p>
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<div class="note"><span class="notetitle">Note:</span> While your application program should use the length returned in the
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generic header to address subsequent list entries, your application program
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should only retrieve as many bytes as the application program has allocated
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storage for.</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="conParameter.htm" title="After you have found the API that you want to use, you need to code a call to an API and pass to the API the required set of parameters appropriate for that API.">API parameters</a></div>
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</div>
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</div>
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</body>
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</html>
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