ing.find_first_of.h2"></a>
          <span class="phrase"><a name="json.ref.boost__json__string.find_first_of.complexity"></a></span><a class="link" href="find_first_of.html#json.ref.boost__json__string.find_first_of.complexity">Complexity</a>
        </h6>
<p>
          Linear.
        </p>
<h6>
<a name="json.ref.boost__json__string.find_first_of.h3"></a>
          <span class="phrase"><a name="json.ref.boost__json__string.find_first_of.return_value"></a></span><a class="link" href="find_first_of.html#json