"keyword">const</span> T&amp; a) { <span class="keywordflow">return</span> a.width(); }
<a name="l00058"></a>00058 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">typename</span> T::y_coord_t get_height(<span class="keyword">const</span> T&amp; a) { <span class="keywordflow">return</span> a.height(); }
<a name="l00059"></a>00059 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">typename</spa