ibm-information-center/dist/eclipse/plugins/i5OS.ic.cl_5.4.0.1/endsubr.htm

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<h2>End Subroutine (ENDSUBR)</h2>
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<td valign="top" align="left"><b>Where allowed to run: </b>
<ul><li>Batch program (*BPGM)</li>
<li>Interactive program (*IPGM)</li>
</ul><b>Threadsafe: </b>Yes
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<a href="#ENDSUBR.PARAMETERS.TABLE">Parameters</a><br>
<a href="#ENDSUBR.COMMAND.EXAMPLES">Examples</a><br>
<a href="#ENDSUBR.ERROR.MESSAGES">Error messages</a></td>
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<div> <a name="ENDSUBR"></a>
<p>The End Subroutine (ENDSUBR) command specifies the end of a subroutine, and must be paired with a previous Subroutine (SUBR) command. When the ENDSUBR command is processed, control is returned to the command immediately following the Call Subroutine (CALLSUBR) command that called the subroutine. If a value is to be returned, such as an error code, the returned value must be able to be stored into a 4-byte signed integer CL variable. The <b>Return value (RTNVAL) </b> parameter can be a variable or constant. If no RTNVAL parameter is defined, the value will default to zero.
</p>
<p><b>Restrictions:</b>
</p>
<ul>
<li>This command is valid only within a CL procedure.
</li>
<li>The subroutine must be defined within a procedure, and must be located at the end of the procedure.
</li>
</ul>
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<h3><a name="ENDSUBR.PARAMETERS.TABLE">Parameters</a></h3>
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<th bgcolor="aqua" valign="bottom" align="left">Keyword</th>
<th bgcolor="aqua" valign="bottom" align="left">Description</th>
<th bgcolor="aqua" valign="bottom" align="left">Choices</th>
<th bgcolor="aqua" valign="bottom" align="left">Notes</th>
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<td valign="top"><a href="#ENDSUBR.RTNVAL"><b>RTNVAL</b></a></td>
<td valign="top">Return value</td>
<td valign="top"><i>Integer</i>, <b><u>0</u></b></td>
<td valign="top">Optional</td>
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<div> <a name="ENDSUBR.RTNVAL"></a>
<h3>Return value (RTNVAL)</h3>
<p>Specifies the value to be returned from the subroutine. This can be a variable or constant that can be stored in a 4-byte signed integer CL variable. If the Call Subroutine (CALLSUBR) command that called the subroutine specified a <b>CL variable for returned value</b>, the variable is set to this value.
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<dl>
<dt><b><u>0</u></b></dt>
<dd>The subroutine returns a zero.
</dd>
<dt><b><i>integer-constant</i></b></dt>
<dd>Specify the constant integer value for the return value.
</dd>
<dt><b><i>CL-variable-name</i></b></dt>
<dd>Specify the name of the CL variable to contain the return value from the called subroutine. This must be a signed integer CL variable.
</dd>
</dl>
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<div><h3><a name="ENDSUBR.COMMAND.EXAMPLES">Examples</a> </h3>
<p>
<pre>
PGM
:
SUBR SUBR1
:
ENDSUBR
ENDPGM
</pre>
</p>
<p>This CL subroutine is identified by a SUBR command that contains the subroutine name, SUBR1, and is ended by the ENDSUBR command.
</p>
<p>
<pre>
PGM
:
SUBR SUBR1
:
ENDSUBR RTNVAL(-1)
ENDPGM
</pre>
</p>
<p>This CL subroutine has an ENDSUBR command that returns a -1.
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<div><h3><a name="ENDSUBR.ERROR.MESSAGES">Error messages</a> </h3>
<p>None
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