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13<b>Dbc::count</b>
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21<b><pre>
22#include &lt;db_cxx.h&gt;
23<p>
24int
25Dbc::count(db_recno_t *countp, u_int32_t flags);
26</pre></b>
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28<b>Description: Dbc::count</b>
29<p>The Dbc::count method returns a count of the number of data items for
30the key to which the cursor refers.</p>
31<p>The Dbc::count method
32either returns a non-zero error value
33or throws an exception that encapsulates a non-zero error value on
34failure, and returns 0 on success.
35</p>
36<b>Parameters</b> <br>
37 <b>countp</b><ul compact><li>The <b>countp</b> parameter references memory into which
38 the count of the number of duplicate data items is copied.</ul> 
39 <b>flags</b><ul compact><li>The <b>flags</b> parameter is currently unused, and must be set to 0.</ul>
40<br>
41<br><b>Errors</b>
42<p>The Dbc::count method
43may fail and throw
44<a href="../api_cxx/except_class.html">DbException</a>,
45encapsulating one of the following non-zero errors, or return one of
46the following non-zero errors:</p>
47<br>
48<b>DB_REP_HANDLE_DEAD</b><ul compact><li>The database handle has been invalidated because a replication election
49unrolled a committed transaction.</ul>
50<br>
51<br>
52<b>DB_REP_LOCKOUT</b><ul compact><li>The operation was blocked by client/master synchronization.</ul>
53<br>
54<br>
55<b>EINVAL</b><ul compact><li>If the cursor has not been initialized; or if an
56invalid flag value or parameter was specified.</ul>
57<br>
58<hr size=1 noshade>
59<br><b>Class</b>
60<a href="../api_cxx/dbc_class.html">Dbc</a>
61<br><b>See Also</b>
62<a href="../api_cxx/dbc_list.html">Database Cursors and Related Methods</a>
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