no">   50</span>    }</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>    MUDA_GENERIC <span class="keyword">auto</span> as_const() <span class="keyword">const</span> MUDA_NOEXCEPT</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    {</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>        <sp