98 lines
6.6 KiB
HTML
98 lines
6.6 KiB
HTML
|
<?xml version="1.0" encoding="UTF-8"?>
|
||
|
|
<!DOCTYPE html
|
||
|
|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
|
|
<html lang="en-us" xml:lang="en-us">
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
||
|
|
<meta name="security" content="public" />
|
||
|
|
<meta name="Robots" content="index,follow" />
|
||
|
|
<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))' />
|
||
|
|
<meta name="DC.Type" content="reference" />
|
||
|
|
<meta name="DC.Title" content="Example: Perform date arithmetic" />
|
||
|
|
<meta name="abstract" content="This program illustrates how to write a CL program that adds or subtracts a given number of days for the current system date." />
|
||
|
|
<meta name="description" content="This program illustrates how to write a CL program that adds or subtracts a given number of days for the current system date." />
|
||
|
|
<meta name="DC.subject" content="retrieving, program attribute, attribute, timing out" />
|
||
|
|
<meta name="keywords" content="retrieving, program attribute, attribute, timing out" />
|
||
|
|
<meta name="DC.Relation" scheme="URI" content="sampl.htm" />
|
||
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
|
||
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
|
||
|
|
<meta name="DC.Format" content="XHTML" />
|
||
|
|
<meta name="DC.Identifier" content="datearith" />
|
||
|
|
<meta name="DC.Language" content="en-us" />
|
||
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
||
|
|
<!-- US Government Users Restricted Rights -->
|
||
|
|
<!-- Use, duplication or disclosure restricted by -->
|
||
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
||
|
|
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
||
|
|
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
||
|
|
<title>Example: Perform date arithmetic</title>
|
||
|
|
</head>
|
||
|
|
<body id="datearith"><a name="datearith"><!-- --></a>
|
||
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
||
|
|
<h1 class="topictitle1">Example: Perform date arithmetic</h1>
|
||
|
|
<div><p>This program illustrates how to write a CL program that adds or
|
||
|
|
subtracts a given number of days for the current system date.</p>
|
||
|
|
<div class="section"><div class="note"><span class="notetitle">Note:</span> Read the <a href="codedisclaimer.htm">Code license and disclaimer information</a> for important
|
||
|
|
legal information.</div>
|
||
|
|
<pre>/* Calculate new date from current system date. Pass negative */
|
||
|
|
/* number to subtract, positive number to add */
|
||
|
|
/* */
|
||
|
|
/* The first parameter is a character 8 date in YYYYMMDD format */
|
||
|
|
/* or the special value *CURRENT */
|
||
|
|
/* */
|
||
|
|
/* The second parameter is a decimal value for the number of days */
|
||
|
|
/* to adjust the first parameter by */
|
||
|
|
/* */
|
||
|
|
/* Test cases: CALL CALCDATE (*CURRENT -5) */
|
||
|
|
/* CALL CALCDATE (*CURRENT 5) */
|
||
|
|
/* CALL CALCDATE ('20030225' -90) */
|
||
|
|
/* CALL CALCDATE ('30020228' 90) */
|
||
|
|
/* */
|
||
|
|
/* There is no error handling in this sample, so make sure the */
|
||
|
|
/* input dates are valid (that is, no 20031325). The valid date */
|
||
|
|
/* date range is Oct 14 1582 to Dec 31 9999 */
|
||
|
|
/* */
|
||
|
|
PGM PARM(&curdate &DAYSTOCHG)
|
||
|
|
DCL VAR(&CURDATE) TYPE(*CHAR) LEN(8)
|
||
|
|
DCL VAR(&DAYSTOCHG) TYPE(*DEC) LEN(15 5)
|
||
|
|
DCL VAR(&DATETIME) TYPE(*CHAR) LEN(17)
|
||
|
|
DCL VAR(&DATE) TYPE(*CHAR) LEN(8)
|
||
|
|
DCL VAR(&LILDATEINT) TYPE(*CHAR) LEN(4)
|
||
|
|
DCL VAR(&LILDATEDEC) TYPE(*DEC) LEN(10 0)
|
||
|
|
DCL VAR(&ERRCOD) TYPE(*CHAR) LEN(4) +
|
||
|
|
VALUE(X'00000000')
|
||
|
|
DCL VAR(&MSG) TYPE(*CHAR) LEN(50)
|
||
|
|
IF COND(&CURDATE = '*CURRENT') THEN(DO)
|
||
|
|
CALL PGM(QWCCVTDT) PARM('*CURRENT' ' ' '*YYMD' +
|
||
|
|
&DATETIME &ERRCOD) /* Get current system +
|
||
|
|
date and time in YYYYMMDD */
|
||
|
|
CHGVAR VAR(&DATE) VALUE(%SST(&DATETIME 1 8)) /* Get +
|
||
|
|
just the date portion */
|
||
|
|
ENDDO
|
||
|
|
ELSE CMD(CHGVAR VAR(&DATE) VALUE(&CURDATE)) /* +
|
||
|
|
Use the date provided */
|
||
|
|
CALLPRC PRC(CEEDAYS) PARM(&DATE 'YYYYMMDD' +
|
||
|
|
&LILDATEINT *OMIT) /* Get Lilian date for +
|
||
|
|
current date */
|
||
|
|
CHGVAR VAR(&LILDATEDEC) VALUE(%BIN(&LILDATEINT)) /* +
|
||
|
|
Get Lilian date in decimal format */
|
||
|
|
CHGVAR VAR(&LILDATEDEC) VALUE(&LILDATEDEC + +
|
||
|
|
&DAYSTOCHG) /* Adjust specified number +
|
||
|
|
of days */
|
||
|
|
CHGVAR VAR(%BIN(&LILDATEINT)) VALUE(&LILDATEDEC) /* +
|
||
|
|
Get Lilian date in integer format */
|
||
|
|
CALLPRC PRC(CEEDATE) PARM(&LILDATEINT 'YYYYMMDD' +
|
||
|
|
&DATE *OMIT) /* Return calculated date in +
|
||
|
|
YYYYMMDD format */
|
||
|
|
CHGVAR VAR(&MSG) VALUE('The new date is ' *CAT &DATE)
|
||
|
|
SNDPGMMSG MSG(&MSG) TOPGMQ(*EXT)
|
||
|
|
ENDPGM </pre>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div>
|
||
|
|
<div class="familylinks">
|
||
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="sampl.htm" title="These sample programs demonstrate the flexibility, simplicity, and versatility of CL programs.">Examples: CL programs and procedures</a></div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|