buffers_iterator::operator+ (2 of 2 overloads)">operator+</a><span class="special">(</span>
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <span class="identifier">difference</span><span class="special">,</span>
    <span class="keyword">const</span> <span class="identifier">buffers_iterator</span> <span class="special">&amp;</span> <span class="identifier">iter</span><span class="special">);</span>
  <span class="emphasis"><em>&#187; <a class