ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/xdr_u_long.htm

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<title>xdr_u_long()--Translate between an Unsigned Long and Its XDR</title>
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<h2>xdr_u_long()--Translate between an Unsigned Long and Its XDR</h2>
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<br>
&nbsp;&nbsp;Syntax<br>
<pre>
#include &lt;rpc/xdr.h&gt;
bool_t xdr_u_long(XDR *<em>xdrs</em>,
u_long *<em>ulp</em>);
</pre>
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&nbsp;&nbsp;Service Program Name: QZNFTRPC<br>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: No<br>
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<p>The <strong>xdr_u_long()</strong> function is a filter primitive that
translates between C-language unsigned long integers and their external
representations.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong>xdrs</strong> &nbsp;(Input)&nbsp;</dt>
<dd>A pointer to the eXternal Data Representation (XDR) stream handle.<br>
<br>
</dd>
<dt><strong>ulp</strong> &nbsp;(I/O)&nbsp;</dt>
<dd>The address of the unsigned long integer.</dd>
</dl>
<br>
<h3>Authorities</h3>
<p>No authorization is required.</p>
<br>
<h3>Return Value</h3>
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<td valign="top"><em>TRUE (1)</em></td>
<td valign="top">Successful</td>
</tr>
<tr>
<td valign="top"><em>FALSE (0)</em></td>
<td valign="top">Unsuccessful</td>
</tr>
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<h3>Error Conditions</h3>
<p>None.</p>
<br>
<h3>Error Messages</h3>
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<th align="left" valign="top">Message ID</th>
<th align="left" valign="top">Error Message Text</th>
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<td width="15%" valign="top">CPE3418 E</td>
<td width="85%" valign="top">Possible APAR condition or hardware failure.</td>
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<td valign="top">CPF3CF2 E</td>
<td valign="top">Error(s) occurred during running of &amp;1 API.</td>
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<td valign="top">CPF9872 E</td>
<td valign="top">Program or service program &amp;1 in library &amp;2 ended.
Reason code &amp;3.</td>
</tr>
</table>
<br>
<br>
<h3>Example</h3>
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
for information pertaining to code examples.</p>
<p>The following example shows how <strong>xdr_u_long()</strong> is used:</p>
<pre>
#include &lt;stdio.h&gt;
#include &lt;xdr.h&gt;
typedef struct vector
{
u_long x,y,z;
} vector ;
bool_t xdr_vector(XDR *xdrs, vector *p_vector)
{
if(!<strong>xdr_u_long</strong>&amp;((xdrs,p_vector-&gt;x)))
return FALSE;
if(!<strong>xdr_u_long</strong>(xdrs,&amp;(p_vector-&gt;y)))
return FALSE;
return <strong>xdr_u_long</strong>(xdrs,&amp;(p_vector-&gt;z));
}
</pre>
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<hr>
API introduced: V4R2
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