class="nv">strings</span><span class="ss">(</span>:<span class="ss">)</span>
 <span class="nv">doubleprecision</span>               :: <span class="nv">dv</span>
 <span class="nv">integer</span>                       :: <span class="nv">errnum</span>

 <span class="o">!</span> <span class="nv">different</span> <span class="nv">strings</span> <span class="nv">representing</span> <span class="nv">INTEGER</span>, <span class="nv">REAL</span>, <span class="nv">and</span> <span class="nv">DOUBLEPRECISION</span>
