</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">cmath</span><span class="special">&gt;</span>

<span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test_multi_context</span><span class="special">)</span>
<span class="special">{</span>
  <span class="keyword">for</span> <span class="special">(</span><span class="keyword">int</span> <span class="identifier">level<