mplate</span> &lt;<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2&gt;
<a name="l00153"></a>00153     <span class="keywordtype">void</span> operator()(<span class="keyword">const</span> P1&amp; src, P2&amp; dst)<span class="keyword"> const </span>{
<a name="l00154"></a>00154         <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_type&lt;P2&gt;::type T2;
<a name="l00155"></a>00155         <a class="code" href="g_i_l_0106.html#g4b9fe0ec8239