> Pixel&amp; p) {
<a name="l00239"></a>00239     <span class="keywordflow">return</span> detail::alpha_or_max_impl(p, mpl::contains&lt;<span class="keyword">typename</span> color_space_type&lt;Pixel&gt;::type,alpha_t&gt;());
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241 
<a name="l00242"></a>00242 
<a name="l00245"></a>00245 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C1&gt;
<a name="l00246"></a><a class="code" href="g_i_l_0455.html">00246</a> <span class="keywo