</em></span> shall exist
        for the lifetime of the iterator constructed from it.
      </p>
<p>
        <span class="bold"><strong>Effects</strong></span>: constructs a <a class="link" href="regex_token_iterator.html" title="regex_token_iterator"><code class="computeroutput"><span class="identifier">regex_token_iterator</span></code></a> that will enumerate
        <code class="computeroutput"><span class="identifier">submatches</span><span class="special">.</span><span class="identifier">size</span><