class="o">=</span><span class="n">I4</span><span class="p">)</span> <span class="kd">::</span> <span class="n">it_max</span>           <span class="c">!! *maximal number of iterations*</span>
   <span class="kt">integer</span><span class="p">(</span><span class="nb">kind</span><span class="o">=</span><span class="n">I4</span><span class="p">)</span> <span class="kd">::</span> <span class="n">mess</span>             <span class="c">!! *message*</span>
   <span class="kt">integer</span><span class="p">(</span