terator2<span class="special">,</span> 
         <span class="keyword">typename</span> OutputIterator<span class="special">&gt;</span> 
  <span class="identifier">OutputIterator</span> 
  <span class="identifier">merge</span><span class="special">(</span><span class="identifier">InputIterator1</span> first1<span class="special">,</span> <span class="identifier">InputIterator1</span> last1<span class="special">,</span> <span class="identifier">InputIterator2</span> first2<span class="special">,</span> 
     