163 lines
9.8 KiB
HTML
163 lines
9.8 KiB
HTML
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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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<meta name="DC.Title" content="CL or HLL command processing program" />
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<meta name="abstract" content="This topic describes the command processing program for CL or HLL." />
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<meta name="description" content="This topic describes the command processing program for CL or HLL." />
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<meta name="DC.subject" content="relationship, PARM statement and DCL command, part of command definition, Create Command (CRTCMD) command, CRTCMD (Create Command) command, *INT4 value, *INT2 value, *UINT2, *UINT4" />
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<meta name="keywords" content="relationship, PARM statement and DCL command, part of command definition, Create Command (CRTCMD) command, CRTCMD (Create Command) command, *INT4 value, *INT2 value, *UINT2, *UINT4" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<title>CL or HLL command processing program</title>
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</head>
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<body id="wcpclhll"><a name="wcpclhll"><!-- --></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">CL or HLL command processing program</h1>
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<div><p>This topic describes the command processing program for CL or HLL.</p>
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<div class="section"> <p>The figure below shows the relationship between the Create Command
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(CRTCMD) command, the command definition statements, and the command processing
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program for CL and high level languages (HLL).</p>
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<div class="fignone" id="wcpclhll__cmdrel"><a name="wcpclhll__cmdrel"><!-- --></a><span class="figcap">Figure 1. Command
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Relationships for CL and HLL</span><br /><img src="rbafn542.gif" alt="Command Relationships for CL and HLL" /><br /></div>
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<p>If the command processing program is a program written in CL, the
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variables that receive the parameter values must be declared to correspond
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to the type and length specified for each PARM statement. The following shows
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this correspondence.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><thead align="left"><tr><th align="left" valign="bottom" width="25%" id="d0e58">PARM Statement Type</th>
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<th align="left" valign="bottom" width="25%" id="d0e60">PARM Statement Length</th>
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<th align="left" valign="bottom" width="25%" id="d0e62">Declared Variable Type</th>
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<th align="left" valign="bottom" width="25%" id="d0e64">Declared Variable Length</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="25%" headers="d0e58 ">*DEC</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">x y<sup>1</sup></td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*DEC</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">x y<sup>1</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*LGL</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">1</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*LGL</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">1</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">≤n<sup>2</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*NAME</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">≤n<sup>2</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*CNAME</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">≤n<sup>2</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*SNAME</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">≤n<sup>2</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*GENERIC</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">≤n<sup>2</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*CMDSTR</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">≤n<sup>2</sup></td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*DATE</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">7</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">7</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*TIME</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">6</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">6</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*INT2</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*INT or *CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">2</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*INT4</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*INT or *CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">4</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*UINT2</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*UINT or *CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">2</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e58 ">*UINT4</td>
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<td align="left" valign="top" width="25%" headers="d0e60 ">n</td>
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<td align="left" valign="top" width="25%" headers="d0e62 ">*UINT or *CHAR</td>
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<td align="left" valign="top" width="25%" headers="d0e64 ">4</td>
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</tr>
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<tr><td colspan="4" align="left" valign="top" headers="d0e58 d0e60 d0e62 d0e64 "><div class="note"><span class="notetitle">:</span> <dl><dt class="dlterm"><sup>1</sup></dt>
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<dd>x equals the length and y is the number of decimal positions.</dd>
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<dt class="dlterm"><sup>2</sup></dt>
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<dd>For character variables, if the length of the value passed is greater
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than the length declared, the value is truncated to the length declared. If
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RTNVAL(*YES) is specified, the length declared must equal the length defined
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on the PARM statement.</dd>
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</dl>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>A program written in CL used as a command processing program can
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process binary values (such as *INT2 or *INT4). The program can receive these
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values as character fields. In that case, the binary built-in function (%BINARY)
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can be used to convert them to decimal values. Otherwise, the CL program can
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declare them as integer variables.</p>
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<p>The difference between *INT2 or *INT4
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and *UINT2 or *UINT4 is that the *INT2 and *INT4 types are signed integers
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and the *UINT2 and *UINT4 types are unsigned integers. The default value for
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all integer types is 0. The *UINT2 and *UINT4 types have the same restrictions
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as the *INT and *INT4 types. </p>
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<div class="note"><span class="notetitle">Note:</span> The %BINARY built-in function is for
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use with signed integers. There is no corresponding function for unsigned
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integers.</div>
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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="wcppg.htm" title="A command processing program (CPP) is a program that processes a command. This program performs some validity checking and processes the command so that the requested function is performed.">Write a command processing program or procedure</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="exdcc.htm" title="This contains examples of defining and creating commands.">Examples: Define and create commands</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../cl/crtcmd.htm">Create Command (CRTCMD) command</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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