span class="lineno">  122</span>&#160;    }</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;};</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="keyword">template</span> &lt;&gt;</div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1default__color__converter__impl_3_01rgb__t_00_01gray__t_01_