an><span class="identifier">seed</span><span class="special">);</span>
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">uniform_int_distribution</span><span class="special">&lt;&gt;</span> <span class="identifier">dis</span><span class="special">(-</span><span class="number">10</span><span class="special">,</span> <span class="number">10</span><span class="special">);</span>

  <span class="identifier">BOOST_TEST_MESSAGE</span><span class="special">(</span><span c