class="n">incx</span>
<span class="n">doubleprecision</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">s</span>
<span class="kt">integer</span><span class="w">         </span><span class="kd">::</span><span class="w"> </span><span class="n">ix</span>
<span class="kt">integer</span><span class="w">         </span><span class="kd">::</span><span class="w"> </span><span class="n">i</span>

<span class="w">   </span><span class="c">!     norm1(x)</span>
<span class