ass="keyword">namespace</span> <span class="identifier">numeric</span> <span class="special">{</span>
    <span class="keyword">namespace</span> <span class="identifier">odeint</span> <span class="special">{</span>
      <span class="keyword">struct</span> <a class="link" href="../../../../../boost/numeric/odeint/stepper_tag.html" title="Struct stepper_tag">stepper_tag</a><span class="special">;</span>
      <span class="keyword">struct</span> <a class="link" href="../../../../../boost/numeric/odeint/error_