escription</h2>
<div class="refsect2">
<a name="idm45736163122608"></a><h3>
<a name="boost.log.add_value_manipconstruct-copy-destruct"></a><code class="computeroutput">add_value_manip</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><a name="idm46093042950000-bb"></a><span class="identifier">add_value_manip</span><span class="special">(</span><span class="identifier">attribute_name</span> <sp