358 lines
10 KiB
HTML
358 lines
10 KiB
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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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="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Get String Information (CEEGSI) API</title>
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<!-- Begin Header Records ========================================== -->
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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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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- ILE7A SCRIPT A converted by B2H R4.1 (346) (CMS) by NLJONES at -->
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<!-- RCHVMX on 25 Feb 1999 at 15:12:34 -->
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<!--Edited by Kersten Oct 2001 -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!-- Java sync-link -->
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>Get String Information (CEEGSI) API</h2>
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<div class="box" style="width: 65%;">
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<br>
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Required Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="30%">posn</td>
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<td align="left" valign="top" width="30%">Input</td>
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<td align="left" valign="top" width="30%">INT4</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">datatype</td>
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<td align="left" valign="top">Output</td>
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<td align="left" valign="top">INT4</td>
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</tr>
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<tr>
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<td align="center" valign="top">3</td>
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<td align="left" valign="top">currlen</td>
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<td align="left" valign="top">Output</td>
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<td align="left" valign="top">INT4</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">maxlen</td>
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<td align="left" valign="top">Output</td>
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<td align="left" valign="top">INT4</td>
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</tr>
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</table>
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<br>
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Omissible Parameter:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">5</td>
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<td align="left" valign="top" width="30%">fc</td>
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<td align="left" valign="top" width="30%">Output</td>
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<td align="left" valign="top" width="30%">FEEDBACK</td>
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</tr>
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</table>
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<br>
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Service Program Name: QLEAWI<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The Get String Information (CEEGSI) API retrieves string information about a
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parameter used in the call to this API. String information describes the
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elements of a parameter, such as the type and the length of the string.</p>
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<!-- Please NOTE: DO NOT DELETE THIS SECTION if this API has no authorities and locks. -->
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<!-- Instead, use the commented out coding below to indicate NONE. -->
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<h3>Authorities and Locks</h3>
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<!-- Use this if there are no authorities and locks. -->
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<p>None.</p>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>posn (input)</strong></dt>
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<dd>The ordinal position in the parameter list of the formal parameter whose
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operational descriptor is required. A value of 1 denotes the leftmost
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parameter.<br>
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<br>
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</dd>
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<dt><strong>datatype (output)</strong></dt>
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<dd>The binary value of the data type field. The possible values and their data
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types are:
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top"><em>1</em></td>
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<td align="left" valign="top">(typeEsc) An element descriptor type (descElmt)
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that is not one of the following data types.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>2</em></td>
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<td align="left" valign="top">(typeChar) A string of SBCS characters with
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values in the range X'00' through X'FF'.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>3</em></td>
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<td align="left" valign="top">(typeCharZ) A string of SBCS characters with
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values in the range X'01' through X'FF' that ends with a null byte
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(X'00').</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>4</em></td>
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<td align="left" valign="top">(typeCharV2) A string of SBCS characters prefixed
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by an unsigned 2-byte binary count field. The count field specifies the current
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length of the string in terms of the number of string elements, that is, the
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number of characters.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>5</em></td>
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<td align="left" valign="top">(typeCharV4) A string of SBCS characters prefixed
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by an unsigned 4-byte binary count field. The count field specifies the current
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length of the string in terms of the number of string elements, that is, the
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number of characters.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>6</em></td>
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<td align="left" valign="top">(typeBit) A string of bits with values of 0 or
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1.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>7</em></td>
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<td align="left" valign="top">(typeBitV2) A string of bits prefixed by an
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unsigned 2-byte binary count field. The count field specifies the current
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length of the string in terms of the number of string elements, that is, the
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number of bits.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>8</em></td>
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<td align="left" valign="top">(typeBitV4) A string of bits prefixed by an
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unsigned 4-byte binary count field. The count field specifies the current
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length of the string in terms of the number of string elements, that is, the
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number of bits.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>9</em></td>
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<td align="left" valign="top">(typeGChar) A string of DBCS characters with
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values in the range X'0000' through X'FFFF'.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>10</em></td>
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<td align="left" valign="top">(typeGCharZ) A string of DBCS characters with
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values in the range X'0001' through X'FFFF' that end with a null byte
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(X'0000').</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>11</em></td>
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<td align="left" valign="top">(typeGCharV2) A string of DBCS characters
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prefixed by an unsigned 2-byte binary count field. The count field specifies
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the current length of the string in terms of the number of string elements,
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that is, the number of characters.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>12</em></td>
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<td align="left" valign="top">(typeGCharV4) A string of DBCS characters
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prefixed by an unsigned 4-byte binary count field. The count field specifies
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the current length of the string in terms of the number of string elements,
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that is, the number of characters.</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>currlen (output)</strong></dt>
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<dd>A binary number containing the current number of elements in the string, as
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follows:
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<ul>
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<li>For strings of typeEsc, this is the length from the descriptor, and is
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equal to the maximum length returned in <em>maxlen</em>.</li>
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<li>For strings of typeCharV2 and typeCharV4, this is the length from the
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argument (binary prefix) itself.</li>
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<li>For strings of typeCharZ, the API determines the current length (in number
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of characters, either SBCS or DBCS) of the string by scanning for the null
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character. If the length in the descriptor is nonzero (the compiler of the
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caller knew the extent), the search is confined to that length. Otherwise, the
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scan continues until a null character is found.</li>
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<li>If the data type was undefined, the contents of this field are
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undefined.</li>
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</ul>
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<br>
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</dd>
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<dt><strong>maxlen (output)</strong></dt>
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<dd>A binary number containing the maximum number of string elements, as
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follows:
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<ul>
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<li>For strings of typeEsc, this is the length from the descriptor, and is
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equal to the current length returned in <em>currlen</em>.</li>
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<li>For strings of typeCharV2 and typeCharV4, this is the length from the
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descriptor (which does not include the length of the prefix).</li>
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<li>For strings of typeCharZ, the maximum length is the number of the
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characters excluding the null character. It is the maximum length from the
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descriptor minus 1 (to account for the SBCS or DBCS null character). If the
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length in the descriptor is zero, the maximum length is set equal to the
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current length.</li>
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<li>If the data type was undefined, the contents of this field are
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undefined.</li>
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</ul>
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<br>
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</dd>
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</dl>
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<br>
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<h3>Omissible Parameter</h3>
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<dl>
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<dt><strong>fc (output)</strong></dt>
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<dd>A 12-byte feedback code.</dd>
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</dl>
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<br>
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<h3>Feedback Codes and Conditions</h3>
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<table cellpadding="3">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top">CEE0000</td>
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<td align="left" valign="top">The API completed successfully</td>
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</tr>
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<tr>
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<td align="left" valign="top">Severity: 00</td>
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<td align="left" valign="top"> </td>
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</tr>
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<tr>
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<td align="left" valign="top">CEE0501</td>
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<td align="left" valign="top">The operational descriptor data type is not
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valid</td>
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</tr>
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<tr>
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<td align="left" valign="top">Severity: 30</td>
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<td align="left" valign="top"> </td>
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</tr>
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<tr>
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<td align="left" valign="top">CEE0502</td>
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<td align="left" valign="top">Missing operational descriptor</td>
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</tr>
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<tr>
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<td align="left" valign="top">Severity: 30</td>
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<td align="left" valign="top"> </td>
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</tr>
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<tr>
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<td align="left" valign="top">CEE0505</td>
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<td align="left" valign="top">A NULL-terminated string is not found</td>
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</tr>
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<tr>
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<td align="left" valign="top">Severity: 10</td>
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<td align="left" valign="top"> </td>
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</tr>
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</table>
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<br>
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<h3>Usage Notes</h3>
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<ul>
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<li>It is an error to use CEEGSI to test an argument that is not a reference
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argument or that is preceded in the argument list by other arguments that are
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not reference arguments.
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<p><strong>Note:</strong> This error may not be diagnosed.</p>
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</li>
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<li>The results are undefined if this API is used in a function that does not
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have operational descriptors specified.</li>
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<li>CEEGSI is implemented as a builtin and therefore cannot have its address
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taken or be called through a procedure pointer.</li>
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</ul>
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<br>
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<hr>
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API introduced: V2R3
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"ile1a1.htm">ILE CEE APIs</a> | <a href="aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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