      <span><a name="boost_asio.reference.mutable_buffer.accessing_buffer_contents"></a></span><a class="link" href="mutable_buffer.html#boost_asio.reference.mutable_buffer.accessing_buffer_contents">Accessing
        Buffer Contents</a>
      </h5>
<p>
        The contents of a buffer may be accessed using the <a class="link" href="buffer_size.html" title="buffer_size"><code class="computeroutput"><span class="identifier">buffer_size</span></code></a> and <a class="link" href="buffer_cast.html" title="buff