66 lines
3.9 KiB
HTML
66 lines
3.9 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="DC.Title" content="Basing-pointer description" />
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<meta name="abstract" content="The topic describes the basing-pointer description." />
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<meta name="description" content="The topic describes the basing-pointer description." />
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<meta name="DC.Relation" scheme="URI" content="rbam6probas.htm" />
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<meta name="copyright" 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="rbam6basingpointerdes" />
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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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<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>Basing-pointer description</title>
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</head>
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<body id="rbam6basingpointerdes"><a name="rbam6basingpointerdes"><!-- --></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">Basing-pointer description</h1>
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<div><p>The topic describes the basing-pointer description.</p>
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<div class="section"><pre>Basing Pointer
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.-------------------.
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V (1) |
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>>-<var class="varname">qualified-name</var>---<var class="varname">subscript</var>------,<var class="varname">subscript</var>-------+----------><
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</pre>
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<div class="note"><span class="notetitle">Note:</span> A maximum of 14 repetitions</div>
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<p>The basing pointer
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must be enclosed in apostrophes if it contains special characters. Up to 132
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characters can be specified for a basing pointer name. This includes any subscripts,
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embedded blanks, parentheses, and commas. It does not include the enclosing
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apostrophes when special characters are used. Some examples are:</p>
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<pre> PTRVAR1
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'ABC.PGMPTR(5,B.I)'</pre>
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<p>If more than one basing pointer is specified for a variable,
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the list of basing pointers must be enclosed in parentheses. When multiple
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basing pointers are specified, they must be listed in order, from the first
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basing pointer to the last, when used to locate the variable. In the example
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below, the PTR_1 basing pointer is the first basing pointer used to locate
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the variable; it either must have a declared basing pointer, or it must not
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be a based variable. The address contained in the PTR_1 pointer is used to
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locate the A.PTR_2 pointer (which must be declared as a based pointer variable).
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The contents of the A.PTR_2 pointer are used to locate the PTR_3 pointer array
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(which must also be declared based), and the contents of the specified element
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in the last pointer array are used to locate the variable. An example is:</p>
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<pre> ('PTR_1' 'A.PTR_2' 'PTR_3(1,B.J)')</pre>
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</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="rbam6probas.htm" title="The operating system includes functions that let a programmer observe operations performed as a program runs.">Parameter values used for testing and debugging</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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