nce.html" title="set_difference">set_difference</a>
                  <a class="link" href="../reference/algorithms/set/set_symmetric_difference.html" title="set_symmetric_difference">set_symmetric_difference</a>
                </p>
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                <p>
                  <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">range</span><span class="special">/</span><span cl