59 lines
3.6 KiB
HTML
59 lines
3.6 KiB
HTML
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<meta name="DC.Title" content="Case of characters in variables" />
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<meta name="abstract" content="There are restrictions on the case used for characters in variables." />
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<meta name="description" content="There are restrictions on the case used for characters in variables." />
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<title>Case of characters in variables</title>
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<body id="lower"><a name="lower"><!-- --></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">Case of characters in variables</h1>
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<div><p>There are restrictions on the case used for characters in variables.</p>
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<p>Reserved values, such as *LIBL, that can be used as variables must always
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be expressed in uppercase letters, especially if they are presented as character
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strings enclosed in apostrophes. For instance, if you wanted to substitute
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a variable for a library name on a command, the correct code is as follows:
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</p>
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<pre>DCL VAR(&LIB) TYPE(*CHAR) LEN(10) VALUE('*LIBL')
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DLTPGM &LIB/MYPROG;</pre>
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<p>However, it would be <em>incorrect</em> to specify the VALUE parameter this
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way: </p>
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<pre>DCL VAR(&LIB) TYPE(*CHAR) LEN(10) VALUE('*libl')</pre>
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<p>Note that if this VALUE parameter had not been enclosed in apostrophes,
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it would have been correct, because without the apostrophes it would be translated
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to uppercase automatically. This error frequently occurs when the parameter
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is passed as input to a procedure or program from a display as a character
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string, and the display entry is made in lowercase.</p>
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<div class="note"><span class="notetitle">Note:</span> The above paragraph does not take into account the fact that conversion
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to uppercase is language dependent. <strong>REMEMBER</strong>: Relying on the system
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to convert values to uppercase may produce unexpected results.</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="workv.htm" title="CL procedures consist of CL commands, and the commands themselves consist of the command statement, parameters, and parameter values.">Use variables</a></div>
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