55 lines
3.5 KiB
HTML
55 lines
3.5 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="Predefined values" />
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<meta name="abstract" content="Predefined values are IBM-defined fixed values that have predefined uses in the CL and are considered to be reserved in the i5/OS operating system." />
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<meta name="description" content="Predefined values are IBM-defined fixed values that have predefined uses in the CL and are considered to be reserved in the i5/OS operating system." />
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<meta name="DC.Relation" scheme="URI" content="rbam6charsetval.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="rbam6predefval" />
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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>Predefined values</title>
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</head>
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<body id="rbam6predefval"><a name="rbam6predefval"><!-- --></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">Predefined values</h1>
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<div><p>Predefined values are IBM-defined fixed values that have predefined
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uses in the CL and are considered to be reserved in the i5/OS™ operating
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system.</p>
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<p> Predefined values have an asterisk (*) as the first character in the value
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followed by a word or abbreviation, such as *ALL or *PGM. The purpose of the
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* in predefined values is to prevent possible conflicts with user-specified
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values, such as object names. Each predefined value has a specific use in
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one or more command parameters, and each is described in detail in the command
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description.</p>
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<p>Some predefined values are used as operators in expressions, such as *EQ
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and *AND. The predefined value *N is used to specify a null value and can
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be used to represent any optional parameter. A <em>null value</em> (*N) indicates
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a parameter position for which no value is being specified; it allows other
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parameters that follow it to be entered in positional form. To specify the
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characters *N as a character value (not as a null), the string must be enclosed
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in apostrophes ('*N') to be passed. Also, when the value *N appears in a CL
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program variable at the time it is run, it is always treated as a null value.</p>
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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="rbam6charsetval.htm" title="This topic explains the usage of the EBCDIC character sets, special characters, and IBM -defined fixed values called predefined values.">CL character sets and values</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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