r</span><span class="special">++();</span>
</pre>
<p>
        <span class="bold"><strong>Effects</strong></span>: Moves on to the next character
        sequence to be enumerated.
      </p>
<p>
        <span class="bold"><strong>Throws</strong></span>: <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span></code>
        if the complexity of matching the expression against an N character string
        begins to exceed O(