class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">odeint</span> <span class="special">{</span>

<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">get_controller</span><span class="special">&lt;</span> <span class="identifier">custom_stepper</span> <span class="special">&gt;</span>
<span class="special">{</span>
    <span class="keyword">typedef</span> <span class="identifier">custom_c