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<h1>DB-&gt;set_errpfx</h1>
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<h3><pre>
#include &lt;db.h&gt;
<p>
void
DB-&gt;set_errpfx(DB *db, const char *errpfx);
</pre></h3>
<h1>Description</h1>
<p>Set the prefix string that appears before error messages issued by Berkeley DB.
<p>The DB-&gt;set_errpfx function does not copy the memory referenced by the
<b>errpfx</b> argument, rather, it maintains a reference to it.  This
allows applications to modify the error message prefix at any time,
without repeatedly calling DB-&gt;set_errpfx, but means that the
memory must be maintained until the handle is closed.
<p>For DB handles opened inside of Berkeley DB environments, calling the
DB-&gt;set_errpfx function affects the entire environment and is equivalent to calling
the <a href="../api_c/env_set_errpfx.html">DBENV-&gt;set_errpfx</a> function.
<p>The DB-&gt;set_errpfx interface may be used to configure Berkeley DB at any time
during the life of the application.
<h1>See Also</h1>
<a href="../api_c/env_close.html">DBENV-&gt;close</a>,
<a href="../api_c/env_create.html">db_env_create</a>,
<a href="../api_c/env_open.html">DBENV-&gt;open</a>,
<a href="../api_c/env_remove.html">DBENV-&gt;remove</a>,
<a href="../api_c/db_err.html">DBENV-&gt;err</a>,
<a href="../api_c/env_strerror.html">db_strerror</a>,
<a href="../api_c/env_version.html">db_version</a>,
<a href="../api_c/env_set_cachesize.html">DBENV-&gt;set_cachesize</a>,
<a href="../api_c/env_set_errcall.html">DBENV-&gt;set_errcall</a>,
<a href="../api_c/env_set_errfile.html">DBENV-&gt;set_errfile</a>,
<a href="../api_c/env_set_errpfx.html">DBENV-&gt;set_errpfx</a>,
<a href="../api_c/env_set_flags.html">DBENV-&gt;set_flags</a>,
<a href="../api_c/env_set_mutexlocks.html">DBENV-&gt;set_mutexlocks</a>,
<a href="../api_c/env_set_paniccall.html">DBENV-&gt;set_paniccall</a>,
and
<a href="../api_c/env_set_verbose.html">DBENV-&gt;set_verbose</a>.
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