180 lines
5.0 KiB
HTML
180 lines
5.0 KiB
HTML
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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>Basic Random Number Generation (CEERAN0) 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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<!-- ILE5A SCRIPT A converted by B2H R4.1 (346) (CMS) by NLJONES at -->
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<!-- RCHVMX on 25 Feb 1999 at 15:07:42 -->
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<!-- YYMMDD USERID Change description -->
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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>Basic Random Number Generation (CEERAN0) API</h2>
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<div class="box" style="width: 60%;">
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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">1</td>
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<td align="left" valign="top" width="30%">seed</td>
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<td align="left" valign="top" width="30%">I/O</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">random_no</td>
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<td align="left" valign="top">Output</td>
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<td align="left" valign="top">FLOAT8</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%">3</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: QLEMF<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 Basic Random Number Generation (CEERAN0) API generates a sequence of
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uniform pseudorandom numbers between 0 and 1 using the multiplicative
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congruential method with a user-specified seed.</p>
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<br>
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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>seed (I/O)</strong></dt>
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<dd>A 32-bit binary integer representing an initial value used to generate
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random numbers. It must be a variable; that is, it cannot be an input-only
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parameter. The valid range is 0 to 2 147 483 646.
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<p>If the value of the seed parameter is 0, the seed is generated from the
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current Greenwich Mean Time.</p>
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<p>On return, CEERAN0 changes the value of <em>seed</em> so that it may be used
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as the new seed in the next call.</p>
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</dd>
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<dt><strong>random_no (output)</strong></dt>
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<dd>A 64-bit double floating-point pseudorandom number with a value between 0
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and 1, exclusive. If <em>seed</em> is not valid, <em>random_no</em> is set to
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-1 and CEERAN0 ends with a nonzero feedback code.</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 passed by reference. If specified as an argument,
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feedback information (a condition token) is returned to the calling procedure.
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If not specified, and the requested operation was not successfully completed,
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the condition is signaled to the condition manager.</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">CEE2523</td>
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<td align="left" valign="top">UTC not available to generate random seed from
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system time</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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<tr>
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<td align="left" valign="top">CEE2524</td>
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<td align="left" valign="top">Seed value for &1 is not 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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</table>
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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="ile1a1.htm">ILE
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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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