<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>DB->set_lorder()</title> <link rel="stylesheet" href="apiReference.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> <link rel="start" href="index.html" title="Berkeley DB C API Reference" /> <link rel="up" href="db.html" title="Chapter 2. The DB Handle" /> <link rel="prev" href="dbset_h_nelem.html" title="DB->set_h_nelem()" /> <link rel="next" href="dbset_msgcall.html" title="DB->set_msgcall()" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">DB->set_lorder()</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="dbset_h_nelem.html">Prev</a> </td> <th width="60%" align="center">Chapter 2. The DB Handle </th> <td width="20%" align="right"> <a accesskey="n" href="dbset_msgcall.html">Next</a></td> </tr> </table> <hr /> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="dbset_lorder"></a>DB->set_lorder()</h2> </div> </div> </div> <pre class="programlisting">#include <db.h> int DB->set_lorder(DB *db, int lorder); </pre> <p> Set the byte order for integers in the stored database metadata. The host byte order of the machine where the Berkeley DB library was compiled will be used if no byte order is set. </p> <p> <span class="bold"><strong>The access methods provide no guarantees about the byte ordering of the application data stored in the database, and applications are responsible for maintaining any necessary ordering.</strong></span> </p> <p> The <code class="methodname">DB->set_lorder()</code> method configures a database, not only operations performed using the specified <a class="link" href="db.html" title="Chapter 2. The DB Handle">DB</a> handle. </p> <p> The <code class="methodname">DB->set_lorder()</code> method may not be called after the <a class="xref" href="dbopen.html" title="DB->open()">DB->open()</a> method is called. If the database already exists when <a class="xref" href="dbopen.html" title="DB->open()">DB->open()</a> is called, the information specified to <code class="methodname">DB->set_lorder()</code> will be ignored. </p> <p> If creating additional databases in a single physical file, information specified to <code class="methodname">DB->set_lorder()</code> will be ignored and the byte order of the existing databases will be used. </p> <p> The <code class="methodname">DB->set_lorder()</code> <span> <span> method returns a non-zero error value on failure and 0 on success. </span> </span> </p> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1648142"></a>Parameters</h3> </div> </div> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="id1648254"></a>lorder</h4> </div> </div> </div> <p> The <span class="bold"><strong>lorder</strong></span> parameter should represent the byte order as an integer; for example, big endian order is the number 4,321, and little endian order is the number 1,234. </p> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1648379"></a>Errors</h3> </div> </div> </div> <p> The <code class="methodname">DB->set_lorder()</code> <span> <span> method may fail and return one of the following non-zero errors: </span> </span> </p> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="id1648305"></a>EINVAL</h4> </div> </div> </div> <p> If the method was called after <a class="xref" href="dbopen.html" title="DB->open()">DB->open()</a> was called; or if an invalid flag value or parameter was specified. </p> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1648281"></a>Class</h3> </div> </div> </div> <p> <a class="link" href="db.html" title="Chapter 2. The DB Handle">DB</a> </p> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1648145"></a>See Also</h3> </div> </div> </div> <p> <a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a> </p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="dbset_h_nelem.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="db.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="dbset_msgcall.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">DB->set_h_nelem() </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> DB->set_msgcall()</td> </tr> </table> </div> </body> </html>