 class="keyword">typename</span> <a class="link" href="../metafunctions/copy.html" title="copy"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">copy</span></code></a><span class="special">&lt;</span><span class="identifier">Seq1</span><span class="special">,</span> <span class="identifier">Seq2</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">copy</span><span class="special">(<