ass="char">'_'</span><span class="special">)</span>
      <span class="special">,</span> <span class="identifier">space</span><span class="special">);</span>
    <span class="identifier">BOOST_ASSERT</span><span class="special">(</span><span class="identifier">r</span> <span class="special">&amp;&amp;</span> <span class="identifier">first</span> <span class="special">==</span> <span class="identifier">str</span><span class="special">.</span><span class="identifier">end</span><span class="special">());</span