fore_">func formIndex(<wbr>before:)</a>
        
<div class="comment collapse" id="comment-func-formindex-before_"><div class="p">
    <p>Replaces the given index with its predecessor.</p>

<p><strong><code>i</code>:</strong>  A valid index of the collection. <code>i</code> must be greater than
  <code>startIndex</code>.</p>

    <h4>Declaration</h4>    
    <code class="language-swift">func formIndex(before i: inout Self.Index)</code>
    
    
</div></div>
</div>
<div class="declaration inherited" id="fun