lass="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">level</span> <span class="special">&lt;</span> <span class="number">1</span><span class="special">;</span> <span class="special">}</span>
<span class="special">};</span>

<span class="keyword">void</span> <span class="identifier">test_operations</span><span class="special">(</span><span class="identi