<?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>DbEnv::log_compare()</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="lsn.html" title="Chapter 8. The DbLsn Handle" /> <link rel="prev" href="logcget.html" title="DbLogc::get()" /> <link rel="next" href="memp.html" title="Chapter 9. The DbMpoolFile Handle" /> </head> <body> <div xmlns="" class="navheader"> <div class="libver"> <p>Library Version 11.2.5.3</p> </div> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">DbEnv::log_compare()</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="logcget.html">Prev</a> </td> <th width="60%" align="center">Chapter 8. The DbLsn Handle </th> <td width="20%" align="right"> <a accesskey="n" href="memp.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="logcompare"></a>DbEnv::log_compare()</h2> </div> </div> </div> <pre class="programlisting">#include <db_cxx.h> static int DbEnv::log_compare(const DbLsn *lsn0, const DbLsn *lsn1); </pre> <p> The <code class="methodname">DbEnv::log_compare()</code> method allows the caller to compare two <code class="classname">DbLsn</code> structures, returning 0 if they are equal, 1 if <span class="bold"><strong>lsn0</strong></span> is greater than <span class="bold"><strong>lsn1</strong></span>, and -1 if <span class="bold"><strong>lsn0</strong></span> is less than <span class="bold"><strong>lsn1</strong></span>. </p> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp8548480"></a>Parameters</h3> </div> </div> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp8552544"></a>lsn0</h4> </div> </div> </div> <p> The <span class="bold"><strong>lsn0</strong></span> parameter is one of the <code class="classname">DbLsn</code> structures to be compared. </p> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp8565432"></a>lsn1</h4> </div> </div> </div> <p> The <span class="bold"><strong>lsn1</strong></span> parameter is one of the <code class="classname">DbLsn</code> structures to be compared. </p> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp8563304"></a>Class</h3> </div> </div> </div> <p> <a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>, <a class="link" href="logc.html" title="The DbLogc Handle">DbLogc</a>, <a class="link" href="lsn.html" title="Chapter 8. The DbLsn Handle">DbLsn</a> </p> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp8545704"></a>See Also</h3> </div> </div> </div> <p> <a class="xref" href="lsn.html#loglist" title="Logging Subsystem and Related Methods">Logging Subsystem 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="logcget.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="lsn.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="memp.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">DbLogc::get() </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> Chapter 9. The DbMpoolFile Handle </td> </tr> </table> </div> </body> </html>