ent">// Forward-declare</span></div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1channel__type.html">   31</a></span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> P&gt; <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1channel__type.html">channel_type</a>;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div><div class="line"><a name="l00038"></