0177"></a><span class="lineno"><a class="line" href="classmorse.html#a5a4149fe4ce7751fe12170d3964e167d">  177</a></span>&#160;        </div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;        <span class="keywordflow">if</span>( present(unit) ) <span class="keywordflow">then</span></div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;            effunit = unit</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160