space </span>boost { <span class="keyword">namespace </span>gil { <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Pixel</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;        , <span class="keyword">typename</span> DummyT = <span