"><span class="identifier">is_permutation</span></a><span class="special">(</span><span class="identifier">ForwardIterator1</span><span class="special">,</span> <span class="identifier">ForwardIterator1</span><span class="special">,</span> 
                          <span class="identifier">ForwardIterator2</span><span class="special">,</span> <span class="identifier">BinaryPredicate</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">template</span><span class="spec