 class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../attributes.html#header.boost.log.attributes.attribute_value_impl_hpp" title="Header &lt;boost/log/attributes/attribute_value_impl.hpp&gt;">boost/log/attributes/attribute_value_impl.hpp</a>&gt;

</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="../attribute_value.html" title="Class attribute_value">a