lgorithms.set.set_difference.precondition_"></a></span><a class="link" href="set_difference.html#range.reference.algorithms.set.set_difference.precondition_">Precondition:</a>
          </h6>
<p>
            <span class="bold"><strong>For the non-predicate versions:</strong></span>
          </p>
<p>
            <code class="computeroutput"><span class="identifier">rng1</span></code> and <code class="computeroutput"><span class="identifier">rng2</span></code> are sorted in ascending order
            accord