elper&lt;typename View::value_type&gt;(width, in_bytes)</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    {}</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;};</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> View&gt;</div><div class="line"><