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<h1>DBcursor->c_del</h1>
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<h3><pre>
#include <db.h>
<p>
int
DBcursor->c_del(DBC *cursor, u_int32_t flags);
</pre></h3>
<h1>Description</h1>
<p>The DBcursor->c_del function deletes the key/data pair currently referenced by
the cursor.
<p>The <b>flags</b> parameter is currently unused, and must be set to 0.
<p>The cursor position is unchanged after a delete, and subsequent calls to
cursor functions expecting the cursor to reference an existing key will
fail.
<p>If the element has already been deleted, DBcursor->c_del will return
<a href="../ref/program/errorret.html#DB_KEYEMPTY">DB_KEYEMPTY</a>.
<p>If the cursor is not yet initialized, the DBcursor->c_del function will return EINVAL.
<p>Otherwise, the DBcursor->c_del function returns a non-zero error value on failure and 0 on success.
<h1>Errors</h1>
<p>The DBcursor->c_del function may fail and return a non-zero error for the following conditions:
<p><dl compact>
<p><dt>DB_LOCK_DEADLOCK<dd>The operation was selected to resolve a deadlock.
</dl>
<p><dl compact>
<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
</dl>
<p><dl compact>
<p><dt>EPERM <dd>Write attempted on read-only cursor when the <a href="../api_c/env_open.html#DB_INIT_CDB">DB_INIT_CDB</a> flag was
specified to <a href="../api_c/env_open.html">DBENV->open</a>.
</dl>
<p>The DBcursor->c_del function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions.
If a catastrophic error has occurred, the DBcursor->c_del function may fail and return
<a href="../ref/program/errorret.html#DB_RUNRECOVERY">DB_RUNRECOVERY</a>, in which case all subsequent Berkeley DB calls will fail
in the same way.
<h1>See Also</h1>
<a href="../api_c/dbc_close.html">DBcursor->c_close</a>,
<a href="../api_c/dbc_count.html">DBcursor->c_count</a>,
<a href="../api_c/dbc_del.html">DBcursor->c_del</a>,
<a href="../api_c/dbc_dup.html">DBcursor->c_dup</a>,
<a href="../api_c/dbc_get.html">DBcursor->c_get</a>
and
<a href="../api_c/dbc_put.html">DBcursor->c_put</a>.
</tt>
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