    the current capacity of the <a class="link" href="../basic_streambuf.html" title="basic_streambuf"><code class="computeroutput">basic_streambuf</code></a>.
        </p>
<pre class="programlisting">std::size_t capacity() const;
</pre>
<h6>
<a name="boost_asio.reference.basic_streambuf.capacity.h0"></a>
          <span class="phrase"><a name="boost_asio.reference.basic_streambuf.capacity.return_value"></a></span><a class="link" href="capacity.html#boost_asio.reference.basic_streambuf.capacity.return_value