&gt;</span> <span class="keyword">struct</span> <span class="identifier">dimension</span><span class="special">&lt;</span><span class="identifier">QPoint</span><span class="special">&gt;</span> <span class="special">:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="number">2</span><span class="special">&gt;</span> <span class="special"