n> <span class="identifier">base_tag</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Stepper</span><span class="special">::</span><span class="identifier">stepper_category</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span><span class="special">&gt;</span> 
        <span class="keyword">class</span> <a class="link" href="../../../../../boost/numeric/odeint/checked_stepper.html" title="Class template 