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<h2 class="title" style="clear: both"><a id="envset_errpfx"></a>DB_ENV->set_errpfx()</h2>
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<pre class="programlisting">#include <db.h>
void
DB_ENV->set_errpfx(DB_ENV *dbenv, const char *errpfx); </pre>
<p>
Set the prefix string that appears before error messages issued by
Berkeley DB.
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<p>
The <a class="xref" href="dbset_errpfx.html" title="DB->set_errpfx()">DB->set_errpfx()</a>
and <code class="methodname">DB_ENV->set_errpfx()</code> methods do not copy the memory to which the
<span class="bold"><strong>errpfx</strong></span> parameter refers; rather, they
maintain a reference to it. Although this allows applications to
modify the error message prefix at any time (without repeatedly
calling the interfaces), it means the memory must be maintained until
the handle is closed.
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The <code class="methodname">DB_ENV->set_errpfx()</code> method configures operations performed using
the specified <a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>
handle, not all operations performed on the underlying database
environment.
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The <code class="methodname">DB_ENV->set_errpfx()</code> method may be called at any time during the
life of the application.
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<h4 class="title"><a id="id1669005"></a>errpfx</h4>
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The <span class="bold"><strong>errpfx</strong></span> parameter is the
application-specified error prefix for additional error messages.
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<a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>
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<a class="xref" href="env.html#envlist" title="Database Environments and Related Methods">Database Environments and Related Methods</a>
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